NEWS Cap Infos Secondaires – La
tte dans les Žtoiles – Cap Canal – posted Feb. 25, 2013 Our
last ToV, episode 1: The Venus Twilight Experiment from Lightcurve Films on Vimeo. – posted Jun. 12, 2012 Science News@Analysis, Vol. 336, 11 May 2012 : Venus's Rare Sun Crossing May Aid Search for Exoplanets - posted Jun. 12, 2012 Venus Transit 2012 - Thomas Widemann - What will we learn? - posted Apr. 7, 2012 International workshop, Paris Observatory and Institut d'Astrophysique, March 5-7, 2012 - posted Mar. 1, 2012
AREA OF SCIENTIFIC ACTIVITY I am expert in the study of planetary atmospheres in the UV, visible and near infrared range. I have first based my investigations on space-borne, in-situ experiment (ISAV data on board VEGA) to measure SO2 in the nightside lower atmosphere of Venus, and constrain the volcanism and the nature of UV absorption at cloud top level on that planet. In recent years I initiated a multi-annual program to study wind regimes in the Venus mesosphere and their variability. I am also expert in the observation and data analysis of ground-based stellar occultations by distant icy bodies of the solar system, to constrain the size, shape, density, thermal profile, ice condensation - sublimation cycles and the formation of seasonal / perihelion atmospheres above their surface.
I have developed monitoring and interpretation techniques of winds measurements in the mesosphere of Venus in support of ESA's Venus Express mission and the coming JAXA's Venus Climate Orbiter/Akatsuki mission, and coordinated support campaigns worldwide. In recent papers I demonstrated that ground-based Doppler shift measurements of solar and CO2 lines allows to retrieve the vertical gradient of zonal winds in the first two scale heights above cloud tops, and their variability with time, thus constraining the forcing and dissipation mechanisms in the Gierasch-Rossow theory. In 2010-2012 I am Principal Investigator (PI) of a PHC/SAKURA-Japan Hubert-Curien partnership for the coordination of space and ground-based observations of Venus, co-investigator of the European Venus Explorer (EVE) proposal in response to ESAÕs Cosmic Vision 2015-2025, and also co-investigator of ANR program ÒBeyond NeptuneÓ, a partnership of Observatoire de Paris-LESIA and National Tsing Hua University, Taiwan (2009-2011).
Through teaching astronomy and astrophysics to graduate and undergraduate students at Versailles university and Paris Observatory, I also developed a strong interest in History of Astronomy. In synergetic activities, I co-chaired an investigation program at Centre de recherches du ch‰teau de Versailles (CRCV) on early modern science practices at the court of Versailles in the 17th and 18th centuries (2007-2010), in preparation to a major exhibit in Ch‰teau de Versailles in 2011.
SCIENTIFIC RESPONSABILITIES ¥ Science and Instrument Working group member, EChO Exoplanet Characterisation Observatory, ESA Cosmic Vision 2015-2025. ¥ Member of Science group,
SPIRou near-IR spectropolarimeter for the Canada-France-Hawaii Telescope, National Reseach Council of Canada, CNRS/INSU, University of Hawaii/Institute
for Astronomy, 2009 – present ¥ French Principal
Investigator (P.I.), Hubert-Curien SAKURA partnership, France-Japan
international cooperation on coordination of Earth-based and Space observations of Venus, 2010 - present ¥ Member of the Venus Express Science Working Team (SWT) in the frame of the ESA VENUS EXPRESS mission, 2008 - present ¥ Support Investigator (S.I.), ESA VENUS EXPRESS mission on ÒGround-based observations of VenusÕ mesosphereÓ, 2007 - present ¥ Co-Investigator, European
Venus Explorer (EVE) in-situ mission to Venus, M-class proposal, ESA Cosmic
Vision 2015-2025. ¥ Co-I of ANR program BEYOND NEPTUNE, Paris Observatory/LESIA and National Tsing Hua University, Taiwan, 2009 - present ¥
Member of Paris Observatory/LESIA Council, 2010 – present ¥
Program co-chair, "The
Prince and the Scientist in Modern European Courts, XVIIth – XVIIIth
Centuries" Centre de recherche du Ch‰teau de Versailles et
Observatoire de Paris, 2007 – 2010 EXPERTISE ¥ Member of VEXAG's International Venus Exploration Working Group, 2011 - present ¥ Member of Scientific Council of Campus Spatial, Paris-Diderot University (Paris 7), 2010 - present ¥ Editorial reviewer for
Journal of Geophysical Research-Planets, Planetary and Space Science, Earth Moon and Planets, History of Universities
(Oxford University Press, USA) ¥ Member of Working Group on Education/Outreach, NASA/ESA Europa and Jupiter System Mission EJSM/WG9, 2009 - present ¥ International expert for South AfricaÕs National Research Foundation (NRF), 2009 - present ¥ Member of ComitŽ des Travaux Historiques et Scientifiques, ƒcole nationale des Chartes, Paris
CURSUS ACADEMIQUE / ACADEMIC CURSUS
CURSUS PROFESSIONNEL / EMPLOYMENT
MEETINGS / WORKSHOPS
ENSEIGNEMENT / TEACHING
BOOKS / LIVRES
PUBLICATIONS Publications internationales avec comitŽ de lecture / Peer-reviewed articles [A23]
Ortiz, J.L., Sicardy, B., Braga-Ribas, F., Alvarez-Candal, A., Lellouch, E.,
Duffard, R., Pinilla-Alonso, N., Ivanov V.D., Littlefair, S.P., Camargo,
J.I.B., Assafin M., Unda-Sanzana, E., Jehin, E., Morales, N., Tancredi, G.,
Gil-Hutton, R., de la Cueva, I., Colque, J.P., Da Silva Neto, D.N., Manfroid,
J., Thirouin, A., GutiŽrrez, P.J., Lecacheux, J., Gillon, M., Maury, A.,
Colas, F., Licandro, J., Mueller, T., Jacques, C., Weaver, D., Milone, A.,
Salvo, R., Bruzzone, S., Organero, F., Behrend, R., Roland, S.,
Vieira-Martins, R., Widemann, T., Roques, F., Santos-Sanz, P., Hestroffer, D.,
Dhillon, V.S., Marsch, T.R., Harlingten, C., Campo Bagatin, A., Alonso, M.L.,
Ortiz, M., Colazo, C., Lima, H., Oliveira, A., Kerber, L.O., Smiljanic, R.,
Pimentel, E., Giacchini, B., Cacella, P., Emilio, M. 2012, Dwarf planet
Makemake : size, shape, density, and atmosphere from a stellar occultation on
2011 April 23, Nature, in press. [A22]
Encrenaz, T., Greathouse, T. K., Roe, H., Richter, M., Lacy, J., BŽzard, B.,
Fouchet, T., Widemann,
T 2012, HDO and SO2 thermal mapping on Venus: Evidence for
strong SO2 variability, Astr. Astrophys. 543, A153. [A21]
Machado, P., Luz, D., Widemann, T, Lellouch, E., Witasse, O. 2012, Mapping zonal winds
at Venus' cloud tops from ground-based Doppler velocimetry, Icarus 221,
248-261. [A20]
Tanga, P., Widemann,
T., Sicardy, B., Pasachoff, J., Arnaud, J., Comolli, L., Rondi, A.,
Rondi, S., Suetterlin, P. 2011, Sunlight refraction in the mesosphere of
Venus during the transit on June 8th, 2004 (2012), Icarus 218, 207-219,
arXiv:1112.3136. [A19]
Tinetti G., Beaulieu J.P., Henning T., Meyer M., Micela G., Ribas I., Stam
D., Swain M., Krause O., Ollivier M., Pace E., Swinyard B., Aylward A., van
Boekel R., Coradini A., Encrenaz T., Snellen I., Bouwman J., Cho J. Y-K.,
CoudŽ du Foresto V., Guillot T., Mueller-Wodarg I., Palle E., Selsis F.,
Sozzetti A., Ade P.A.R., Achilleos N., Adriani A., Agnor C. B., Afonso C.,
Allende Prieto C., Bakos G., Barber R. J., Barlow M., Bernath P., BŽzard B.,
BordŽ P., Brown L.R., Cassan A., Cavarroc C., Ciaravella A., Cockell, C.,
Coustenis A., Danielski C., Decin L., De Kok R., Demangeon O., Deroo P., Doel
P., Drossart P., Fletcher L.N., Focardi M., Forget F., Fossey S., FouquŽ P.,
Frith J., Galand M., Gaulme P., Gonz‡lez Hern‡ndez J.I. (IAC), Grasset O.,
Grassi D., Grenfell J. L., Griffin M. J., Griffith C. A., Gršzinger U.,
Guedel M., Guio P., Hainaut O., Hargreaves R., Hauschildt P. H., Heng K.,
Heyrovsky D., Hueso R., Irwin P., Kaltenegger L., Kervella P., Kipping D.,
Koskinen T.T., Kov‡cs G., La Barbera A., Lammer H., Lellouch E., Leto G.,
Lopez Morales M., Lopez Valverde M.A., Lopez-Puertas M., Lovis C., Maggio A.,
Maillard J.P., Maldonado Prado J., Marquette J.B., Martin-Torres F.J., Maxted
P., Miller S., Molinari S., Montes D., Moro-Martin A., Moses J.I., Mousis O.,
Nguyen Tuong N., Nelson R., Orton G.S., Pantin E., Pascale E., Pezzuto S.,
Pinfield D., Poretti E., Prinja R., Prisinzano L., Rees J.M., Reiners A.,
Samuel B., S‡nchez-Lavega A., Sanz Forcada J., Sasselov D., Savini G.,
Sicardy B., Smith A., Stixrude L., Strazzulla G., Tennyson J., Tessenyi M.,
Vasisht G., Vinatier S., Viti S., Waldmann I., White G.J., Widemann T.,
Wordsworth R., Yelle R., Yung Y., Yurchenko S.N. 2012, EChO, Exoplanet
characterisation observatory, Experimental Astronomy, DOI
10.1007/s10686-012-9303-4, Aug. 2012. [A18]
Ehrenreich, D., Vidal-Madjar, A., Widemann, T., Gronoff, G., Tanga, P.,
BarthŽlemy, M., Lilensten, J., Lecavelier des Etangs, A. and Arnold, L.
2011,Transmission spectrum of Venus as a transiting exoplanet, Astronomy
& Astrophysics 527, L2, arXiv:1112.0572. [A17]
Sicardy, B., J. L. Ortiz, M. Assafin, E. Jehin, A. Maury, E. Lellouch, R. Gil
Hutton, F. Braga-Ribas, F. Colas, D. Hestroffer, J. Lecacheux, F. Roques, P.
Santos Sanz, T.
Widemann, N. Morales, R. Duffard et al. 2011, A radius of 1163 km and an
albedo of 0.96 for Eris from a stellar occultation, 2011, Nature, Vol. 478,
p. 493-496, 27 October 2011. [A16]
G. Tinetti, J.Y.K. Cho, C.A. Griffith, O. Grasset, L. Grenfell, T. Guillot,
T.T. Koskinen, J.I. Moses, D. Pinfield, J. Tennyson, M. Tessenyi, R.
Wordsworth, A. Aylward, R. van Boekel, A. Coradini, T. Encrenaz, I. Snellen,
M.R. Zapatero-Osorio, J. Bouwman, V.C. du Foresto, M. Lopez-Morales, I.
Mueller-Wodarg, E. Pall ́e, F. Selsis, A. Sozzetti, J.P. Beaulieu, T.
Hen- ning, M. Meyer, G. Micela, I. Ribas, D. Stam, M. Swain, O. Krause, M.
Ollivier, E. Pace, B. Swinyard, P.A.R. Ade, N. Achilleos, A. Adriani, C.B.
Agnor, C. Afonso, C.A. Prieto, G. Bakos, R.J. Barber, M. Barlow, P. Bernath,
B. BŽzard, P. BordŽ, L.R. Brown, A. Cassan, C. Cavarroc, A. Ciaravella, C.
Cockell, A. Coustenis, C. Danielski, L. Decin, R. De Kok, O. Demangeon, P.
Deroo, P. Doel, P. Drossart, L.N. Fletcher, M. Focardi, F. Forget, S. Fossey,
P. FouquŽ, J. Frith, M. Galand, P. Gaulme, J.I.G. Herna ́ndez, D.
Grassi, M.J. Griffin, U. Gršzinger, M. Guedel, P. Guio, O. Hainaut, R.
Hargreaves, P.H. Hauschildt, K. Heng, D. Heyrovsky, R. Hueso, P. Ir- win, L.
Kaltenegger, P. Kervella, D. Kipping, G. Kovacs, A.L. Barbera, H. Lammer, E.
Lellouch, G. Leto, M.L. Morales, M.A.L. Valverde, M. Lopez-Puertas, C. Lovi,
A. Maggio, J.P. Maillard, J.M. Prado, J.B. Marquette, F.J. Martin-Torres, P.
Maxted, S. Miller, S. Molinari, D. Montes, A. Moro-Martin, O. Mousis, N.N.
Tuong, R. Nelson, G.S. Orton, E. Pantin, E. Pascale, S. Pezzuto, E. Poretti,
R. Prinja, L. Prisinzano, J.M. Reess, A. Reiners, B. Samuel, J.S. Forcada, D.
Sasselov, G. Savini, B. Sicardy, A. Smith, L. Stixrude, G. Strazzulla, G.
Vasisht, S. Vinatier, S. Viti, I. Waldmann, G.J. White, T. Widemann, R. Yelle, Y. Yung, S.
Yurchenko, in IAU Symposium, IAU Symposium, vol. 276, ed. by A. Sozzetti, M.
G. Lattanzi, & A. P. Boss (2011), IAU Symposium, vol. 276, pp.
359–370. DOI 10.1017/S1743921311020448 [A15] Pasachoff, J.M., G. Schneider, and T. Widemann
2011, High-Resolution Satellite Imaging of the 2004 Transit of Venus and
Asymmetries In the Cytherean Atmosphere, Astronomical Journal, 141, 112.
Download pdf, cover article
and image. [A14]
Sicardy, B., Bolt, G., Frappa, E., Lecacheux, J., Peyrot, A., Teng-Chuen-Yu,
J.-P., Beisker, W., Boissel, Y., Buckley, D., Colas, F., de Witt, C.,
Doressoundiram, A., Roques, F., Widemann, T., Gruhn, C., Batista, V., Biggs,
J., Dieters, S., Greenhill, J., Groom, R., Herald, D., Lade, B., Mathers, S.,
Assafin, M., Camargo, J.I.B., Vieira Martins, R., Andrei, A. H., da Silva
Neto, D.N., Brago-Ribas, F., Behrend, R. 2010, Constraints on Charon's
orbital elements from the double stellar occultation of 2008 June 22, The
Astronomical Journal, Volume 141, Issue 2, article id. 67 (2011).
DOI:10.1088/0004-6256/141/2/67. [A13] Roques, F., Boissel, Y., Doressoundiram, A., Sicardy, B., and Widemann, T. 2009, Exploration of the Outer Solar System by Stellar Occultations, Earth, Moon, and Planets, 105, 201-208. Download pdf
[A12] Widemann, T., B. Sicardy, R. Dusser, C. Martinez, W. Beisker, E. Bredner, D. Dunham, P. Maley, E. Lellouch, J.-E. Arlot, J. Berthier, F. Colas, W.B. Hubbard, R. Hill, J. Lecacheux, J.-F. Lecampion, S. Pau, M. Rapaport, F. Roques, W. Thuillot, et al. 2009, Titania's Radius and an Upper Limit on its Atmosphere from the September 8, 2001 Stellar Occultation, Icarus 199, Vol. 2, pp. 458-476. Download pdf
[A11] Widemann, T., Lellouch, E., Donati, J.-F., 2008, Venus Doppler winds at Cloud Tops Observed with ESPaDOnS at CFHT, Planetary and Space Science, Special issue on Ground-based measurements in support of Venus Express, 56, 1320-1334. Download pdf
[A10] Gaulme, P., Schmider, F.-X., Grec, C., Ariste, A. L., Widemann, T., and Gelly, B. 2008, Venus wind map at cloud top level with the MTR/Themis visible spectrometer, I – Instrumental performance and first results, Planetary and Space Science, Special issue on Ground-based measurements in support of Venus Express, 56, 1335-1343. Download pdf
[A9] Widemann, T., Lellouch, E., and Campargue, A. 2007, New Wind Measurements in VenusÕ Lower Mesosphere From Visible Spectroscopy, Planetary and Space Science, Special Venus issue Vol. 2, 55, 1741-1756. Download pdf
[A8] Sicardy, B., Colas, F., Widemann, T., Beisker, W., Kretlow, M., Ferri, F., Lacour, S., Lecacheux, J., Lellouch, E., Pau, S., Renner, S., Roques, F., Fienga, A., et al. 2006, The two Titan stellar occultations of 14 November 2003, J. Geophys. Res., Vol. 111, E11S91. Download pdf [A7] Sicardy, B., Bellucci, A., Gendron, Lacombe, F., Lacour, S., Lecacheux, J., Lellouch, E., Renner, S., Pau, S., Roques, F., Widemann, T., Colas, F., et al. 2006, Charon : Size and Constraints on the Atmosphere From a Stellar Occultation, Nature, vol. 439, 52-54, 5 January 2006. Download pdf
[A6] Sicardy, B., Widemann, T., Lellouch, E., Veillet, C., Cuillandre, J.-C et al. 2003, Large Changes In PlutoÕs Atmosphere As Revealed By Recent Stellar Occultations, Nature, vol. 424, 168-170, 10 July 2003. Download pdf
[A5] Raynaud, E., Drossart, P., Matcheva, K., Sicardy, B., Hubbard, W. B., Roques, F., Widemann, T., Gladstone, G. R., Waite, J. H., Nadeau, D., Bastien, P., Doyon, R., Hill, R., Rieke, M. J., And Marley, M. 2003, The 10 October 1999 HIP 9369 Occultation by The Northern Polar Region of Jupiter: Ingress and Egress Lightcurves Analysis, Icarus, 162, 2, 344-361.
[A4] Fegley, B., Klingelhofer, G., Lodders, K., Widemann, T. 1997, Geochemistry of Surface-Atmosphere Interactions on Venus, Venus II, S.W. Bougher, D.M. Hunten, & R.J. Phillips Eds., University of Arizona Press, Tucson, pp. 591-636.
[A3] Bertaux, J.L., Widemann, T., Hauchecorne, A., Moroz, V.I., Ekonomov, A.P. 1996, Vega-1 and Vega-2 Entry Probes: an Investigation of Local UV Absorption (220 - 400 nm) In The Atmosphere of Venus (SO2, Aerosols, Cloud Structure), Journ. Geophys. Research, Vol. 101, N¡E5, pp. 12709-12745.
[A2] Widemann, T., Bertaux, J.L., Querci, F., Querci, M. 1994, High Resolution Spectroscopy of Stars Through Telluric Water Vapor Absorption Band Near 936 nm, I.- Methodology and First Results, Astron. Astrophys. 282, 879.
[A1] Bertaux, J. L., Megie, G., Widemann, T., Chassefire, E., Pellinen, R., Kyrola, E., Korpela, S., and Simon, P. 1991, Monitoring of ozone trend by stellar occultations: The Gomos instrument. Adv. Space Res., 11(3) :237-242.
ConfŽrences internationales invitŽes avec publications des actes / Invited international conferences with published acts/abstracts [I7]
Widemann, T., Y. Takahashi, S. Ohtsuki, M. Sornig, B. Sandor, E. Young, C.
Tsang, T. Slanger, S. Limaye 2011, Ground-based observations of the mesosphere
and lower thermosphere : coordinated campaigns with Venus Express, JpGU
International Symposium 2011, Chiba-city, Japan, 22-27 May 2011. [I6]
Widemann, T., Ground-based observational constraints on the mesosphere and
lower thermosphere : coordinated campaigns with Venus Express EGU/ 6th European Geophysical Union
General Assembly, Vienna, 3-8 April 2011, Geophysical Research Abstracts Vol.
13, EGU2012-A-XXXXX. [I5]
Widemann, T., D. Luz, P. Machado, P. Tanga, B. Sicardy, Y. Takahashi ,
I.Mueller-Wodarg, S. Tingle, G. Piccioni, A. Migliorini, H. Sagawa, P.
Hartogh, M. Rengel, S. Limaye, R.T. Clancy, B. Sandor, G. Sonnabend, M.
Sornig, "Ground-based observational constraints on the mesosphere and
lower thermosphere", International Venus Conference, Aussois, France,
20-26 June 2010. [I4] Widemann, T., Sicardy, B., Lellouch, E., Arlot, J.-E., Colas, F., Hubbard, W., Hill, R. 2008, Titania's radius and an Upper Limit on its Atmosphere from the Sep. 8, 2001 Stellar Occultation, 3rd European Planetary Science Congress, Muenster, Germany, 21-26 September, 2008, EPSC2008-A-00589, p.22.
[I3] Widemann, T., Sicardy, B., Lellouch, L., Ferri, F., Bellucci, A., Hubbard, W.E., and Drossart, P., constraints on thermal and aerosol structure in Titan and Jupiter upper atmospheres from ground based stellar occultations, 36th COSPAR Scientific Assembly, Progress on the Jupiter International Reference Atmosphere (JIRA) and Initial Consideration of Reference Atmospheres for Saturn and Titan (SIRA and TIRA), Beijing, China, July 17-23, 2006.
[I2] Widemann, T., Sicardy, B., Colas, F., Ferri, F., Glass, I., Baba, D., Nagata, T., Beisker, W., Lecacheux, J., Martinez, C. and the Titan occultation team, 2004, Recent Ground-Based Stellar Occultations by Titan : Preliminary Results on Thermal Structure, Central Flash Measurements and Implications for Zonal Wind Regime, Western Pacific Geophysics Meeting, Honolulu, Hawaii, 16-20 August 2004, Eos. Trans. AGU, 85(28), P14A-02.
[I1] Widemann, T., 2003, A Description of Astrophysical Processes of interest to Paleoclimatic and Geophysical Chronology Studies, Invited presentation, Proceedings of International colloquium "Geophysical and Archaelogical Chronologies for the Upper Palaeolithic", Ravello, Italy, May 3-8, 1994, F. Widemann and Y. Taborin eds, Edipuglia, Bari, Italy, 2003, pp. 81-102.
Circulaire de lÕUnion astronomique internationale (UAI) / International Astronomical Union (IAU) Circular
[U1] Sicardy, B., N. Ageorges, O. Marco, F. Roques, O. Mousis, P. Rousselot, O. Hainaut, A. Bellucci, F. Colas, E. Gendron, E. Lellouch, S. Renner, and T.Widemann, 2006, Pluto III (Hydra), IAU Electronic Telegram No. 610, 31 August 2006.
ConfŽrences internationales avec publication des rŽsumŽs / Contributed communications in international conferences with published abstracts [C65] Widemann, Thomas; Tanga, P.; Reardon,
K. P.; Limaye, S.; Wilson, C.; Vandaele, A.; Wilquet, V.; Mahieux, A.;
Robert, S.; Pasachoff, J. M.; Schneider, G., Asymmetry in the Polar
Mesosphere Revealed by the 2012 Venus Transit Aureole, American Astronomical
Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #508.08. [C64] Tanga, Paolo; Widemann, T.; Ambastha,
A.; Babcock, B. A.; Berthier, J.; Bouley, S.; Braga-Ribas, F.; Brasch, K.;
Burke, W.; Colas, F.; and 15 coauthors, The Venus Twilight Experiment:
Probing The Mesosphere in 2004 And 2012, American Astronomical Society, DPS
meeting #44, Reno, NV Oct. 14-19 2012, #508.07. [C63] Pasachoff, Jay M.; Schneider, G.;
Babcock, B. A.; Lu, M.; Reardon, K. P.; Widemann, T.; Tanga, P.; Dantowitz,
R.; Willson, R.; Kopp, G.; and 6 coauthors, The 2012 Transit of Venus for
Cytherean Atmospheric Studies and as an Exoplanet Analog, American
Astronomical Society, DPS meeting #44, Reno, NV Oct. 14-19 2012, #508.06. [C62] Braga Ribas, Felipe; Sicardy, B.;
Ortiz, J. L.; Duffard, R.; Camargo, J. I. B.; Lecacheux, J.; Colas, F.;
Vachier, F.; Tanga, P.; Sposetti, S.; and 25 coauthors, Stellar Occultations
by Large TNOs on 2012: The February 3rd by (208996) 2003 AZ84, and the
February 17th by (50000) Quaoar, American Astronomical Society, DPS meeting
#44, Reno, NV Oct. 14-19 2012, #402.01. [C61] Sicardy, Bruno; Braga-Ribas, F.;
Widemann, T.; Jehin, E.; Gillon, M.; Manfroid, J.; Ortiz, J. L.; Morales, N.;
Maury, A.; Assafin, M.; and 25 coauthors, Charon's Size And Orbit From Double
Stellar Occultations, American Astronomical Society, DPS meeting #44, Reno,
NV Oct. 14-19 2012, #304.01. [C60] P. Machado, T. Widemann, D. Luz, J.
Peralta, and S. Chamberlain, 2012, Observation of Dynamical Tracers in the
Venus Atmosphere, Comparative Climatology of Terrestrial Planets, held June
25–28, 2012, in Boulder, Colorado. LPI Contribution No. 1675, id.8021. [C59] P. Machado, T. Widemann, D. Luz, J.
Peralta, and D. L. Berry 2012, New measurements of Venus winds with
ground-based Doppler velocimetry at CFH, EGU/7th European Geophysical Union
General Assembly, Vienna, 23-28 April 2012, Geophysical Research Abstracts
Vol. 14, EGU2012-10438. [C58] T. Encrenaz, T. K. Greathouse, H.
Roe, J. H. Lacy, M. J. Richter, B. BŽzard, T. Fouchet,and T. Widemann 2012,
Mapping of SO2 and HDO on Venus using thermal infrared imaging
spectroscopy, EGU/7th European Geophysical Union General Assembly, Vienna,
23-28 April 2012, Geophysical Research Abstracts Vol. 14, EGU2012-5867. [C57] P. Tanga, Th. Widemann, and B.
Sicardy 2011, The aureole of Venus: light refraction in the mesosphere during
the solar transit of June 6, 2004, American Astronomical Society, DPS meeting
#43 and 6th European Planetary Science Congress, Nantes, France, 2-7 October,
2011, EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-1032. [C56] P. Machado, D. Luz, and T. Widemann
2011, Characterization of Venus' cloud top dynamics using ground-based
Doppler velocimetry, American Astronomical Society, DPS meeting #43 and 6th
European Planetary Science Congress, Nantes, France, 2-7 October, 2011,
EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-517. [C55] M. W.
Buie, D. J. Tholen, L. H. Wasserman, B. Sicardy, L. A. Young, E. F. Young, W.
Ryan, E. Ryan, K. Walsh, T. Widemann, F. Vachier, W. Beisker, T. Hall, J.
Dire, C. K. Erickson, C. Nance, and M. Person 2011, Hydra stellar occultation
of 2011 June 27, American Astronomical Society, DPS meeting #43 and 6th
European Planetary Science Congress, Nantes, France, 2-7 October, 2011,
EPSC-DPS Abstracts, Vol. 6, EPCS-DPS2011-1715. [C54] B.
Sicardy, J. L. Ortiz, M. Assafin, E. Jehin, A. Maury, E. Lellouch, R. Gil-Hutton,
F. Braga-Ribas, F. Colas, J. Lecacheux, F. Roques, P. Santo Sanz, T.
Widemann, N. Morales, A. Thirouin, J.I.B. Camargo, R. Vieira-Martins, M.
Gillon, J. Manfroid, R. Behrend and the Eris occultation Team, 2011, Size,
density, albedo and atmosphere limit of dwarf planet Eris from a stellar
occultation, American Astronomical Society, DPS meeting #43 and 6th European
Planetary Science Congress, Nantes, France, 2-7 October, 2011, EPSC-DPS
Abstracts, Vol. 6, EPCS-DPS2011-137. [C53]
Machado, P., T. Widemann, D. Luz 2011, Characterization of VenusÕ atmospheric
dynamics with ground-based Doppler velocimetry, JpGU International Symposium
2011, Chiba-city, Japan, 22-27 May 2011. [C52]
Wilson C.F., H. Svedhem, D.V. Titov, R. Hoofs, T. Widemann 2011, Venus
Express science operations and co-ordinated observation planning, JpGU International Symposium 2011,
Chiba-city, Japan, 22-27 May 2011. [C51]
Young, E., Bullock, M., Tsang, C., Hall, D., Widemann, T., Wilson, C. 2011, A
Balloon-Borne Mission to Observe Venus During the January 2014 Inferior
Conjunction, The 20th ESA Symposium on European Rocket and Balloon Programmes
and Related Research, Hyres, France, 22-26 May 2011. [C50]
Encrenaz, T., T. K. Greathouse, M. Richter, B. BŽzard, T. Fouchet, E. Marcq,
T. Widemann, S. K. Atreya 2011, The synthetic spectrum of Venus in the
7-micron region, EGU/ 6th European Geophysical Union General Assembly,
Vienna, 3-8 April 2011, Geophysical Research Abstracts Vol. 13, EGU2012. [C49] Young, L.,
Sicardy, B., Widemann, T., Brucker, M. J.,
Buie, M. W., Fraser, B., Van Heerden, H.,
Howell, R. R., Lonergan, K., Olkin, C. B.,
Reitsema, H. J., Richter, A., Sepersky, T.,
Wasserman, L. H., Young, E. F. 2010, Results from the
2010 Feb 14 and July 4 Pluto Occultations, American Astronomical Society, DPS
meeting #42, #20.01; Bulletin of the American Astronomical Society, Vol. 42,
p.982. [C48] Sicardy, B.,
Colas, F., Maquet, L., Vachier, F., Doressoundiram, A.,
Roques, F., Widemann, T., Ortiz, J., Assafin, M.,
Braga-Ribas, F., Camargo, J. I. B.,
Vieira-Martins, R., Andrei, A., da Silva Neto, D.,
Behrend, R., Hund, F., Hauser, M., Wagner, S.,
Slotegraaf, A., Willasch, D., Costa, M. de Jesus,
Melo Sousa, P., Faustino, E., Prazeres, A.,
Machado, S., Dias do Nascimento, J., Souza Barreto, E.,
Amorim, A., da Rocha Poppe, P.,
Pereira, M. Geraldete, Jacques, C.,
Loureiro Giacchini, B., Collucci, A.,
Ferreira da Costa, W., Martins de Morais, V.
2010, The 2010, February 19 stellar occultation by Varuna, American
Astronomical Society, DPS meeting #42, #23.11; Bulletin of the American
Astronomical Society, Vol. 42, p.993. [C47]
Widemann, T., Liao, E. 2010, Wind Vertical Gradient Above the Venus Clouds on
the Dayside : Search for Latitudinal Variation, American Astronomical
Society, DPS meeting #42, #15.05; Bulletin of the American Astronomical
Society, Vol. 42, p.974. [C46]
Widemann, T., P. Machado,, Y. Liao, E. Young, 2010, Venus Science from
Earth-Based Observations : present and future, Venus 2010 International
Workshop, Madison, Wisconsin 30 Aug. - 2 Sep. 2010. [C45] Widemann, T., D.
Luz, P. Machado, P. Tanga, B. Sicardy, Y. Takahashi , I.Mueller-Wodarg, S.
Tingle, G. Piccioni, A. Migliorini, H. Sagawa, P. Hartogh, M. Rengel, S. Limaye,
R.T. Clancy, B. Sandor, G. Sonnabend, M. Sornig 2010, "Ground-based
observational constraints on the mesosphere and lower thermosphere",
International Venus Conference, Aussois, France, 20-26 June 2010. [C44] Machado, P., Luz, D., Widemann, T., Lellouch, E.,
Witasse, O., Bertaux, J.-L. 2010, Characterizing the Venus atmospheric
dynamics from ground-based Doppler velocimetry, European Geophysical Union
General Assembly, Vienna, 2-7 May 2010, p.9443. [C43] Luz, D, Machado, P., Lellouch, E., Widemann, T., Witasse, O., and Bertaux, J.-L. 2009, Characterization of the Venusian atmospheric dynamics with ground-based Doppler velocimetry, 4th European Planetary Science Congress, Potsdam, Germany, 13-18 September, 2009, EPSC Abstracts, Vol. 4, EPCS2009-487.
[C42] Widemann, T., Sornig, M., Sonnabend, G., Lellouch, E., Moreno, R., Luz, D., Gaulme, P., Hartogh, P., Rengel, M., Sagawa, H., and Witasse, O. 2009, A European Coordinated Network for Ground-based Observations of Venus, 4th European Planetary Science Congress, Potsdam, Germany, 13-18 September, 2009, EPSC Abstracts, Vol. 4, EPCS2009-565.
[C41] Sicardy, B., Boissel, Y., Colas, F. Doressoundiram, A., Lecacheux, J., Roques, F., Widemann, T., Beisker, W., Andrei, A., Camargo, R., Martins, R., Silva Neto, D., Bragas, F., Teng, J.-P., Benard, F., Frappa, E., Bolt, G., Broughton, J., Dobotz, T., Gault, D., Kerr, S., Groom, R., Gruhn, C., Lade, B., Herald, D., Batista, V., Grennhill, J., Biggs, J. 2009, Constraints on CharonÕs orbit from the stellar occultation of 22 June 2008, 4th European Planetary Science Congress, Potsdam, Germany, 13-18 September, 2009.
[C40] Gaulme, P., Schmider, F.-X., Widemann, T., Plee, V., Lopez, A. and Gelly, B. 2009, Comparison of Doppler wind measurements in Venus atmosphere on Fraunhofer and CO2 lines, 4th European Planetary Science Congress, Potsdam, Germany, 13-18 September, 2009.
[C39] Widemann, T., Sicardy, B., Assafin, M., and Behrend, R. 2009, Toward a ground-based stellar occultation by a large TNO, 4th European Planetary Science Congress, Potsdam, Germany, 13-18 September, 2009, EPSC2009-A-00296.
[C38] Pasachoff, J.M., Widemann, T., Sicardy, B., Lister, T. and Tholen, D. 2009, Attempted Observations of the 2009 Occultation of a Star by Nix, 214th Meeting of the American Astronomical Society, 7-11 June 2009, Pasadena, CA, #601.01.
[C37] Widemann, T., Sandor, B.J., Clancy, R.T., and Lellouch, E. 2008, New measurements of vertical thermal structure and wind velocities in the Venusian mesosphere, EGU/ 5th European Geophysical Union General Assembly, Vienna, 19-24 April 2009, Geophysical Research Abstracts Vol. 11, EGU2009-A-13143.
[C36] Widemann, T., Sicardy, B., Lellouch, E. 2008, Upper limits for a Titania's atmosphere and for a Large KBOÕs Atmosphere From Stellar Occultations, American Astronomical Society, 40th meeting of the Division of Planetary Sciences, Ithaca, NY, 11-15 October 2008, Bull. Am. Astron. Soc. Vol. 40, n¡3, p. 461.
[C35] Sicardy, B., Boissel, Y., Colas, F., Roques, F., Widemann, T., Assafin, M., Camargo, J.I.B., da Silva Neto, D.N., Ribas, F.B., Vieira Martins, R., Andrei, A.H., Behrend, R., Beisker, W., Herald, D., Bolt, G., Broughton, J., Dobosz, T., Gault, D., Groom, R., Kerr, S., Anderson, P., Batista, V., Blair, L., Greenhill, J., Frappa, E., Benard, F., Teng, J.-P., Gruhn, C., Blanchard, G, Castets, M. 2008, Pluto Atmospheric Activity, Ephemeris Offset and Charon Orbital Radius Constrained by Stellar Occultations, American Astronomical Society, 40th meeting of the Division of Planetary Sciences, Ithaca, NY, 11-15 October 2008, Bull. Am. Astron. Soc. Vol. 40, n¡3, p. 461.
[C34] Boissel, Y., Sicardy, B., Roques, F., Widemann, T., Gaulme, P., Ageorges, N., Ivanov, V., Marco, O., Mason, E., Mousis, O., Rousselot, P., Assafin, M., Ribas, F.B., Camargo, J., da Silva Neto, D., Andrei, A., Vieira Martins, R., Albert, L., Veillet, C., Behrend, R. 2008, Search for Small Satellites and Rings Orbinting Pluto through Stellar Occultations, American Astronomical Society, 40th meeting of the Division of Planetary Sciences, Ithaca, NY, 11-15 October 2008, Bull. Am. Astron. Soc. Vol. 40, n¡3, p. 483.
[C33] Widemann, T., Lellouch, E., Donati, J.-F. 2008, Venus Doppler Winds at Cloud Tops Observed with ESPaDOnS at CFHT, 3rd European Planetary Science Congress, Muenster, Germany, 21-26 September, 2008, EPSC2008-A-00561, p.30.
[C32] Sicardy, B., Boissel, Y., Colas, F., Doressoundiram, A., Lecacheux, J., Widemann, T., Frappa, E., Bath, K.-L., Beisker, W., Bernard, O., and the Triton Occultation Team, 2008, The Triton stellar occultation of 21 May 2008, 3rd European Planetary Science Congress, Muenster, Germany, 21-26 September, 2008, EPSC2008-A-00497, p.22.
[C31] Widemann, T., Clouds top winds measured at OHP/Sophie and CFHT, Venus Express Ground-based observation workshop, 17-19 December 2007, ESA/ESTEC, Noordwijk, The Netherlands.
[C30] Widemann, T., Sicardy, B., Gilmore, A., Kilmartin, P., Hearnshaw, J., Batista, V., Greenhill, J., Dieters, S., Mathers, S., Herald, D., Assafin, M., Camargo, J., Neto, D., Andrei, A., Martins Vieira, R., Berhend, R. 2007, The July 31, 2007 Stellar Occultation by Pluto, 39th annual meeting of the Division of Planetary Sciences, Orlando, Fl., 7-12 October 2007, Bull. Am. Astron. Soc. Vol. 39, n¡3, 540
[C29] Sicardy, B., Widemann, T., Colas, F., Doressoundiram, A., Lecacheux, J ; Vachier, F., Beisker, W., Assafin, M., Camargo, J., da Silva Neto, D., Ribas, F.B., Andrei, A., Vieira Martins, R., Behrend, R., Hubbard, W., Larson, S., Marchis, F., Wong, M.H., Serverson, S., Dunham, D., Warner, B.D., Peterson, C., Molnar, L., George, T., Maley, P., Coziol, R., Choi, Y., ESO team, Bath, K., Kretlow, M. 2007, PlutoÕs Atmospheric Activity, Ephemeris Offset and Satellite Detections from Observations in 2007, 39th meeting of the Division of Planetary Sciences, Orlando, Fl., 7-12 October 2007, Bull. Am. Astron. Soc. Vol. 39, n¡3, 540
[C28] Widemann, T., Lellouch, E.. 2007, Venus Wind Regime in the Lower Mesosphere, EPSC/ European Planetary Science Congress 2007, Postdam, Germany, 19-24 August 2007, EPSC2007-A-00419, p. 24
[C27] Widemann, T., Lellouch, E., Luz, D., Moreno, R., Ground-Based Multiwavelength Direct Wind Measurements in Support of Venus Express, EGU/European Geophysical Union General Assembly, Vienna, 15-20 April 2007, EGU2007-A-09723.
[C26] Widemann, T., 2007, Visible Spectroscopy of the Lower Mesosphere, Rencontres de Moriond, Venus Express Science Workshop, La Thuile (Italie), 18-24 mars 2007
[C25] Widemann, T., Lellouch, E., and Campargue, A. 2006, Wind Measurements in VenusÕ Lower Atmosphere From CO2 Visible Observations, American Geophysical Union Chapman Conference on Ç Exploring Venus as a Terrestrial Planet È, Key Largo, Florida, USA, 13-17 February 2006.
[C24] Sicardy, B., Widemann, T., Lellouch, E., Roques, Gendron, E., Veillet, C., Cuillandre, J.-C., Colas, F., Beisker, W., Kretlow, M., Hainaut, O., Lidman C., 2005, Lage Changes in Pluto's Atmosphere Revelaed by Stellar Occultations, Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July 2003]. Edited by O. Engvold. San Francisco, CA: Astronomical Society of the Pacific, ISBN 1-58381-189-3. XXIX + 1085 pp., 2005, p.908.
[C23] Widemann, T., And Lellouch, E. 2005, Wind Measurements in Venus' Lower Mesosphere, Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July 2003]. Edited by O. Engvold. San Francisco, CA: Astronomical Society of the Pacific, ISBN 1-58381-189-3. XXIX + 1085 pp., 2005, p.924.
[C22] Sicardy, B., Widemann, T., Glass, I., Ferri, F., Baba, D., Nagata, T., Beisker, W., Colas, F., Lecacheux, J., Martinez, C., and the Titan occultation team, 2004, The Titan occultations of November 14, 2003, European Geosciences Union 1st General Assembly, Session PS4.2, Outer planets and satellites with an atmosphere, Nice, France, 25-30 April 2004
[C21] B. Sicardy, F. Colas, Widemann, T., A. Fienga, S. Lacour, J. Lecacheux, E. Lellouch, S. Pau, S. Renner, F. Roques (Paris Obs.) et al. 2004, The two stellar occultations of November 14, 2003: revealing Titan's stratosphere at sub-km resolution, Bull. Am. Astr. Soc. Vol. 36, n¡4, DPS 36th Meeting, Louisville, KY. 8-12 nov. 2004, 22-06, p.1119
[C20] Sicardy, B., Widemann, T., Glass, I., Ferri, F., Baba, D., Nagata, T., Beisker, W., Colas, F., Lecacheux, J., Martinez, C., and the Titan occultation team, 2004, The Titan occultations of November 14, 2003, European Geosciences Union 1st General Assembly, Session PS4.2, Outer planets and satellites with an atmosphere, Nice, France, 25-30 April 2004
[C19] Widemann, T., Lellouch, E., Bretagne., J.-P., Campargue, A. 2002, Wind Measurements in Venus' Lower Mesosphere from CO2 Visible Observations, Bull. Am. Astr. Soc. Vol. 34, n¡3, DPS 34rd Meeting, Birmingham, AL. 6-11 oct. 2002, 8-04, p.847.
[C18] Sicardy, B., Colas, F., Widemann, T., Beisker, W., Birnbaum, C., Brooks, K., Delsanti, A., Fienga, A., Gendron, E., Hainaut, O., Kretlow, M., Lagrange, A.-M., Lecacheux, J., Leyrat, C., Maury, A., Raynaud, E., Rapaport, M., Renner, S., Roques, F., Schultheis, M. 2002, The 20 July 2002 occultation of P126 by Pluto, Bull. Am. Astr. Soc. Vol. 34, n¡3, DPS 34rd Meeting, Birmingham, Al. 6-11 oct. 2002, 21-01, p.877.
[C17] Widemann, T., Sicardy, S., Drossart, P., Hubbard, W.B., Raynaud, E., Roques, F. 2001, The Occultation of Star HIP 8369 by Jupiter in the Northern Polar Region on Oct. 10, 1999, Jupiter Meeting, June 26-30, Boulder, CO, Laboratory for Atmospheric and Space Physics (LASP), University of Colorado.
[C16] Widemann, T., Lellouch, E., Campargue, A. 2001, Wind Measurements in Venus' Lower Mesosphere from CO2 Visible Observations, Bull. Am. Astr. Soc. Vol. 33, n¡3, DPS 33rd Meeting, New Orleans, LA, 26 nov-1 dec. 2001
[C15] Matcheva, K., Drossart, P., Raynaud, E., Sicardy, B., Widemann, T. 2001, Gravity Wave-Driven Fluctuations in the H3+ Emission of Jupiter, Eos Trans. AGU, 82 (47), Fall Meet. Suppl., Abstract SA51A-0777.
[C14] Sicardy, B., Widemann, T., Colas, F., Lecacheux, J., Pau, S., Thuillot, W., Beisker, W., Birnbaum, C., Hubbard, W.E., Hill, R.E., Porto, J., Lopez, E., Cosias, R., Pallo, E., Percz, R., Pulupa, D., Simba–a, X., Yajamin, A., Recalde, E. 2001, The occultation of HIP 106829 by Titania, Bull. Am. Astr. Soc. Vol. 33, n¡3, DPS 33rd Meeting,, New Orleans, LA, #49.05.
[C13] Raynaud, E., Drossart, P., Sicardy, B., Hubbard, W.B., Matcheva, K., Widemann, T., Bastien, P., Doyon, R., Nadeau, D. 2001, Scale-time and correlation analysis of lightcurves from the HIP 9369 occultation by the northern polar region of Jupiter , Bull. Am. Astr. Soc. Vol. 33, n¡3, DPS 33rd Meeting, New Orleans, LA, #11-12
[C12] Matcheva, K., Drossart, P., Raynaud, E., Sicardy, B., Widemann, T. 2001, Gravity Wave-Driven Fluctuations in the H3+ Emission of Jupiter, Bull. Am. Astr. Soc. Vol. 33, n¡3, DPS 33rd Meeting, New Orleans, LA, #22.02.
[C11] Hubbard, W.B., Rieke, M.J., Hill, R., Drossart, P., Roques, F., Sicardy, B., Widemann, T., Doyon, R., Nadeau, D., Marley, M. 2000, Jupiter Mesospheric Structure and Shape from Occultation of SAO 92746 (HIP 9369), DPS 32nd Meeting, Pasadena, CA, Bull. Am. Astr. Soc. Vol. 32, n¡3, #11.02.
[C10] Drossart, P., Sicardy, B., Roques, F., Widemann, T., Gladstone, G.R., Waite, J.H., Vincent, M. 2000, The Methane Homopause of Jupiter as seen in IR spectroscopy from the occultation of star HIP 9369, DPS 32nd Meeting, Pasadena, CA, Bull. Am. Astr. Soc. Vol. 32, n¡3, #12.09
[C9] Widemann, T. 1999, Ground Detection of Near-Infrared Molecular Lines in Telluric Water Vapor Absorption Band Near 9360 , Observation Of C/1996 B2 Hyakutake And C/1995 O1 Hale-Bopp, Asteroids, Comets, and Meteors 1999, Cornell University, Ithaca, NY., July 26-30, 1999, p. 51
[C8] Widemann, T. 1998, Ground Observation and Detection of Molecular Lines Of C/1995 O1 Hyakutake And C/1997 O2 Hale-Bopp in Telluric Water Vapor Absorption Band Near 9360 , European Geophysical Society XVI General Assembly, Nice, 22-26 April 1998, Ann. Geophys., Suppl.Vol. , C-427.
[C7] Widemann, T., Bertaux, J.L., Moroz, V.I., Ekonomov, A.P. 1994, Vega-1 and 2 descent modules: In-situ measurements of ultraviolet absorption and relationship of SO2 with presently active volcanism on Venus, Bull. Am. Astr. Soc., vol. 26, n¡3, p. 1145
[C6] Widemann, T., Bertaux, J.-L., Moroz, V.I., Ekonomov, A.P. 1994, Vega-1 and 2 descent modules: in-situ measurements of ultraviolet absorption and vertical profiles of SO2 in the atmosphere of Venus, European Geophysical Society XIXth General Assembly, Grenoble, 26-29 April 1994, Ann. Geophys., Suppl.Vol. 12 , C-660.
[C5] Widemann, T., Bertaux, J.-L., Moroz, V.I., Ekonomov, A.P. 1993, Vega-1 and 2 descent modules : In-situ measurements of ultraviolet absorption and relationship of SO2 with presently active volcanism on Venus, Bull. Am. Astr. Soc., vol. 25, n¡3, p. 1094.
[C4] Bertaux, J.-L., Widemann, T., Moroz, V.I., Ekonomov, A.P. 1992, Vega measurements of SO2 through the Atmosphere of Venus : Absence of Evidence for Recent Volcanism, Bull. Am. Astr. Soc., vol. 24, n¡3, p. 996
[C3] Widemann, T., Bertaux, J.-L., Moroz, V.I., Ekonomov, A.P. 1992, In-situ measurements of UV Absorption by Aerosols Particles from the Venus Clouds, Bull. Am. Astr. Soc., vol. 24, n¡3, p. 998
[C2] Bertaux, J.-L., Widemann, T., 1989, SPICAM : Spectroscopy for the investigation of the atmosphere on board MARS-94, Colloque international CNES/Intercosmos: Premiers rŽsultats de la mission PHOBOS et futures missions d'exploration de Mars, Paris, 23-27 octobre 1989, CNES ed., p.122 (3)
[C1] Tully, R. B., Bland, J., Cecil, G.N., Wilson, A.S., Widemann, T., High resolution Fabry-Perot imaging of the extended NLRs in active galaxies, Bull. Am. Astr. Soc., vol. 19, n¡4, p. 1049 (1987)
Cours publiŽs dans des ƒcoles Internationales invitŽes / Invited International Schools with published courses
[S3] Widemann T. 2000, Tidal Effects in the Earth-Moon System, ERCA volume 4, ch. XI, EDP Sciences, Ed. C. Boutron ed., Les Ulis, France, pp 195-203.
[S2] Widemann, T. 1998, History of Earth's Atmosphere over Geological Times, ERCA volume 3, ch. X, EDP Sciences, Ed. C. Boutron, Les Ulis, France, pp. 169-182.
[S1] Widemann, T. 1996, A Description of Astrophysical Processes of interest to Paleoclimatic and Geophysical Chronology Studies, ERCA volume 2, ch. XIV, pp. 377-408, Ed. C. Boutron, Les ƒditions de Physique.
ConfŽrences nationales avec publication des actes / Contributed communications in national conferences with published abstracts
[N4] Sicardy, B., Widemann, T., Lellouch, T., Colas, F., Roques, F., Veillet, C., Cuillandre, J.-C. 2003, Drastic changes in Pluto atmosphere revealed by stellar occultations, Semaine de l'Astrophysique Franaise, meeting held in Bordeaux, France, June 16-20, 2003. Eds.: F. Combes, D. Barret and T. Contini. EdP-Sciences, Conference Series, p. 62.
[N3] Drossart, P., Matcheva, K., Raynaud, E., Roques, F., Sicardy, B., Widemann, T. 2003, Transfert radiatif et dynamique de la mŽsosphre et l'ionosphre de Jupiter, actes du 3e colloque du Programme national de planŽtologie de l'INSU, Nantes, 10-12 sept. 2002, p.133
[N2] Sicardy, B., Widemann, T., Colas, F., Lecacheux, J., Pau, S., Thuillot, W., Beisker, W., Birnbaum, C. 2002, L'occultation de l'Žtoile HIP 106829 par Titania du 8 septembre 2001, actes du 3e colloque du Programme national de planŽtologie de l'INSU, Nantes, 10-12 sept. 2002, p. 301
[N1] Widemann, T. 1998, l'Atmosphre de VŽnus : Žtude du dioxyde de soufre et de ses rŽactifs, colloque PNP Grenoble, 1998, Vol. 1, S4-18.
Documents internes / Internal documents
[D6] Lellouch, E., Luz, D., Moreno, R., Widemann, T. 2006, The Dynamics of the Middle Atmosphere of Venus, a Proposal for Supporting Investigation (SI) to Venus Express, in response to ESA Announcement of Opportunity for the selection of Interdisciplinary Scientists and Supporting Investigtors to the Co-Investigators to Venus Express mission, Jan. 2006.
[D5] Barucci, M. A., J.P. Bibring, F. Capaccioni, A. Coradini, M.C. De Sanctis, A. Doressoundiram, E. Dotto, P. Drossart, Th. Encrenaz, S. Erard, P. Farinella, F. Ferri, T. Fouchet, M. Fulchignoni, O. Hainaut, C.-I. Lagerkvist, M. Lazzarin, A. Le Bras, E. Lellouch, V.M. Linkin, Ph. LognonnŽ, E. Perozzi, G. Piccioni, K.M. Pichkhadze, P. Pinet, H. Rickman, A. Rossi, T. Widemann, A.V. Zakharo 2000, MASTER, proposal for a F2/F3-class mission, European Space Agency, April 2000.
[D4] Fulchignoni, M., Widemann, T. 2000, microbalance ˆ quartz pour le pesage d'Žchantillons martiens, proposition de recherche spatiale, Centre National d'ƒtudes Spatiales, avril 2000.
[D3] Widemann, T., Blamont, J., Trauger, J. 1997, RŽponse ˆ l'appel ˆ propositions du Centre National dÕEtudes Spatiales Ç ExpŽriences et missions scientifiques spatiales de taille intermŽdiaire È. Proposition de micro-satellite dÕobservation des comtes du groupe de Kreuz dans la raie Lyman-alpha, depuis le point de Lagrange L1. Co-investigateurs : Pr. Jacques Blamont (CNES, UniversitŽ Paris 6) et Pr. John Trauger (NASA JPL). Phase de prŽ-sŽlection. [D2]
Widemann, T., Chassefire, E. 1990, PrŽcision attendue de restitution des
profils de concentration d'ozone par l'instrument GOMOS en fonction des caractŽristiques
instrumentales de fin de phase A (septembre 1990) [D1]
Widemann, T., Bertaux, J.L., Dimarellis, E., Goutail, J.P., Taulemesse, C.,
Peyroux, R., Baglin, A., Authier, B. 1990, ExpŽriences SPICAM et EVRIS ˆ bord
de la sonde Mars-94, Rapport de fin de phase A, soumis au CNES (11 mai 1990,
220 pages). Ouvrages grand public et articles de vulgarisation / Public
outreach publishing in French language [O8]
Widemann, T. 2010, Les observations astronomiques dans les rŽsidences
royales, RŽunion des MusŽes Nationaux, Sciences et CuriositŽs ˆ la Cour de
Versailles. Catalogue de l'exposition, ISBN-10: 2711856836. [O7]
Matire et matŽriaux, de quoi est fait le monde ?, 2010, Pedregosa, A.,
Salviat, B., Poss, R., Rojat, D., TolŽdano, J.-C., Valeur, B., Widemann,
T., sous la direction dÕƒ.
Guyon, ƒditions Belin-Pour la Science, ISBN 978-2-7011-5182-3. Ouvrage publiŽ avec le concours
du Ministre de la Culture et de la Communication (Centre national du livre
et CitŽ des Sciences et de l'Industrie) dans le cadre du Fonds Jules Verne. [O6]
Widemann, T., and De Bergh, C. 2004, La plante VŽnus : son atmosphre, sa
surface, in Le passage de VŽnus, J.-E. Arlot ed., EDP Sciences, Paris, April
2004, pp. 27-43. [O5] Agenda
astronomique 2005, LESIA, IMCCE et EDP Sciences, Paris, novembre 2004. [O4]
GalilŽe, ƒcrits coperniciens, Le livre de Poche, Librairie gŽnŽrale
franaise, 2004. Traduction, prŽsentation, notes et dossier par Philippe
Hamou et Marta Spranzi-Zuber. Notes et annexes ˆ caractre astronomique. [O3]
Widemann, T. 2003, Venus Transit, June 8, 2004, invited presentation,
Proceedings of Global Hands-On Universe Conference 2002, UniversitŽ
Pierre-et-Marie-Curie, July 24-29, 2002, Frontier Group, ISBN 2914601107,
A.-L. Melchior and R. Ferlet eds., pp. 191-194. [O2]
Sicardy, B., Widemann, T. 2002, Y a-t-il une atmosphre autour de Titania ?,
L'Astronomie, vol 116, juin 2002, pp. 254-255. [O1]
Encyclopedia Universalis, Grand Atlas Universalis de l'Astronomie, Ždition 1991:
caractŽristiques physiques des plantes et satellites du systme solaire et
leurs paramtres orbitaux. Oeuvres
audiovisuelles dÕŽducation en langue franaise / French language TV Education
Program [T4] Thomas
Widemann, Isabelle Vauglin, Walter Guyot et Carole Dely, Cap Canal, Cap Infos
Secondaires – La tte dans les Žtoiles, septembre
2012. [T3] Thomas
Widemann, VŽronique Dehant, Jean-Marie Malherbe (LESIA) et Catherine Turon
(GEPI) : Canal AcadŽmie, Les
observations de GalilŽe : VŽnus, le soleil et la Voie lactŽe, juillet
2009.
[T2]
Histoire des mesures de la vitesse de la lumire, Jan. 2006, 5 DVD en collaboration avec J. Bosc, J.
Gourmaud, Th. Martin, E. Pernoud, C.Trabado, Ministre de lÕŽducation
nationale et de la recherche, Centre de ressources et d'information sur les
multimŽdias pour l'enseignement supŽrieur (CERIMES,
http://www.cerimes.education.fr). [T1]
Lumbroso, V., Van Waerebeke, D., Widemann, T. 1998, La saga des Nobel,
Einstein ou la relativitŽ, Centre de ressources et d'information sur les
multimŽdias pour l'enseignement supŽrieur (CERIMES,
http://www.cerimes.education.fr). SƒMINAIRES RƒCENTS ET CONFƒRENCES / RECENT SEMINARS AND CONFERENCES 2012
Jun 5 : The University Centre in Svalbard (UNIS), Norway : "History
of Venus transits and relevance to exoplanets" 2011
Nov 23 : UniversitŽ de Mons, auditorium Van Gogh, "Les mystres de VŽnus",
Belgique 2011
Sep 17 : Observatoire de Paris, JournŽes du patrimoine. "De Mercure ˆ
Pluton, les surprises de l'exploration planŽtaire" 2011
Mar 14 : France Fulbright Alumni : "Venus,
our Earth's evil twin", France-AmŽriques, Paris - Conference highlights 2010
Nov 12 : Royal Astronomical Society Meeting, "5 Years of Venus
Express", Burlington House, London 2010 Mar 19 : National Central University, Graduate Institute of Astronomy, Taipei, Taiwan 2009 Jun 17 : journŽe scientifique du Bureau des Longitudes, salle Pierre Hugot, Paris 2009 Mar 24 : Laboratoire de SpectromŽtrie Physique (LSP) de lÕuniversitŽ de Grenoble 2009 Feb 17 : Division of Geological and Planetary Sciences (GPS), Caltech, USA 2009 Feb 11: sŽminaire ˆ lÕObservatoire Canada-France-Hawaii, Hawaii, USA 2009 Jan 5 : sŽminaire Ç Temps-Espace È, Observatoire de Paris / IMCCE-SYRTE 2008 Jun 19 : South African Astronomical Observatory, Cape Town, South Africa |
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