Welcome to
Guillaume Aulanier's homepage

Solar physicist & director of the department of education
at Observatoire de Paris

 
 
  •  Where to find me :

  • Observatoire de Paris

    5 place Jules Janssen
    92195 Meudon Cedex
    France
    mail: guillaume.aulanier_at_obspm.fr

    LESIA

    building 14, room 205
    phone: +33 1 4507 7146
    fax:   +33 1 4507 7959

    UFE

    building 2, room 64
    phone: +33 1 4507 7915
    fax:   +33 1 4507 7879
  •  Resume :
  • G. Aulanier is a tenured astronomer at l'Observatoire de Paris. His PhD was awarded in 1998 from University Pierre & Marie Curie, and he obtained his habilitation (HDR) in 2010 from University Paris Diderot. At the observatory he occupies two positions : director of the Department of Education (UFE), and solar physicist in the Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA). As such he served and still serves on several national scientific, pedagogical, and administrative committees. He also serves on the science team of the AIA instrument of NASA's Solar Dynamics Observatory (SDO) spacecraft, and he is a Science Co-Investigator of both STIX and EUI instruments of ESA's Solar Orbiter project. He is a member of the editorial board of the peer-reviewed journal Solar Physics, and he serves as a referee for various scientific journals and funding organizations. His research focuses on the Sun's magnetic activity, in particular prominences, flares, and coronal mass ejections, that are the main drivers of space weather. In this area, he is specialized in the development of magneto-hydrodynamic (MHD) models so as to understand the physics of observed phenomena, and he is the original developer of the Observationally-driven High-order Magneto-hydrodynamics (OHM) code in three dimensions. He teaches solar physics and computational fluid dynamics at the master level, and he is involved in the tutoring of undergraduate student projects, and of pedagogical projects of teachers in primary, middle, and high shools.
     
    Solar flare and CME model
     
    3D line-tied zero-β resistive MHD numerical simulation with the OHM code from Observatoire de Paris / LESIA
    (click to view the left and the right animation at higher resolution)
     
  •  Teaching activities :
  • - 2016-     : ``Solar and heliospheric magnetism'' ; in the Master M2 Physique des Plasmas et de la Fusion (PPF),
                      from UPMC and Univ. Paris Saclay (Univ. Paris Sud, Ecole Polytechnique, Centrale-Supélec, INSTN).
    - 2011-     : ``Tutoring of TIPE'' projects from CPGE students.
    - 2006-     : ``Sponsoring and accompanying'' school and high-school teachers in their yearly educational projects.
     Formerly
    - 2011-2015 : ``Space plasmas'' ; in the Master M2 Plasmas de l'Espace au Laboratoire (PEL),
                      from Univ. Paris Sud, UPMC, UVSQ, Inst d'Optique, and Ecole Polytechnique.
    - 2011-2015 : ``Numerical analysis and simulation in plasmas'' ; in the Master M2 PEL.
    - 2010      : ``Solar origins of space weather'' ; training course for Armée de l'Air personnels from Observatoire de Paris.
    - 2007      : ``Physics of the Sun'' ; training course for teachers from Observatoire de Paris.
    - 2006      : ``Fundamental methods for magnetic field extrapolations'' ; in an International School in Space Science,
                      in l'Aquila (Italy).
    - 2005-2009 : ``Magnetic activity of the Sun and stars'' ; in the Master M2 Astronomie, Astrophysique et Ingénierie
                      Spatiale (AAIS), from Observatoire de Paris, UPMC, Univ. Paris Diderot, Univ. Paris Sud.
    - 2004-2007 : ``Methods in physics, magnetohydrodynamics simulations'' ; in the Master M2 AAIS.
    - 2002-2005 : ``Numerical experimentation in fluid dynamics'' ; in Master M1 Fundamental Physics from Univ. Paris Diderot.
     
  •  National responsibilities :
  • - 2015-     : Member of the academic council of Paris Sciences & Lettres (elected).
    - 2015-     : Member of the numerical-simulations and big-data working-group of the Commission Spécialisée
                      Astronomie Astrophysique (CSAA) as a representative of the Programme National Soleil Terre (PNST).
    - 2013-     : Director of the department of education (UFE) of Observatoire de Paris.
    - 2013-     : Member of the educational council of Paris Sciences & Lettres (PSL).
    - 2001-     : Development & operation of the FRench Online MAGnetic Extrapolations (FROMAGE) service,
                      integrated into the `Service d'Observation' SO5 : Bass2000.
     Formerly
    - 2014      : President of a selection committee for a maitre de conférences position in Observatoire de Paris.
    - 2007-2014 : Member of the administrative board (CA) of the Observatoire de Paris (elected).
    - 2006-2014 : Member of the scientific council of the Programme National Soleil Terre (PNST).
    - 2007-2010 : Member of the scientific council (CS) of the Observatoire de Paris.
    - 2008-2010 : Coordinator of the Solar Physics Pole (PPS) of the Laboratoire d'Etudes Spatiales et d'Instrumentation
                      en Astrophysique (LESIA).
    - 2004-2010 : Member of the board of the Division Plasmas (DP) of the Société Francaise de Physique (elected).
    - 2005-2008 : Vice-president B of the Comission des Spécialistes en Enseignement (CSE) of the Observatoire
                      de Paris (elected).
     
  •  International responsibilities :
  • - 2014-2017 : Member of the editorial board of the journal Solar Physics.
    - 2015-     : Member of ESA's Modeling and Data Analysis Working Group for the Solar Orbiter project.
    - 2011-     : Science Co-Investigator of the STIX and EUI instruments of Solar Orbiter.
    - 2006-     : Member of the science team of the AIA instrument onboard the SDO spacecraft.
    - 2006-     : Refereeing for funding organizations : PNST & ANR (France), FWO (Belgium), STFC (UK),
                      NSF & NASA (USA), NSERC (Canada), AXA Research Fund
    - 2000-     : Refereeing for peer-reviewed journals : regularly for A&A, ApJ, ApJ Letters, Solar Physics ;
                      occasionally for Adv. Sp. Res., Annales Geophys., JGR, MNRAS, PASJ, Science
     Formerly
    - 2008-2011 : Scientist in charge for the participation of Observatoire de Paris in the European Collaborative Project EST.
    - 2007-2011 : Leader of the french node of the European Marie Curie Research & Training Network SOLAIRE.
    - 2008-2010 : Member of the board of the Solar Physics Section (SPS) of the European Physical & Astrophysical Societies.
     
  •  Publications in leading peer-reviewed journals :
  • - Zuccarello F.P., Aulanier G. & Gilchrist S.A., 2016, ApJ Letters, 821, L23
        The apparent critical decay index at the onset of solar prominence eruptions
    - Zhao J., Gilchrist S., Aulanier G., Schmieder B., Li H. & Pariat E., 2016, ApJ, 823, 62
        Hooked flare ribbons and flux-rope related QSL footprints
    - Dudík J., Polito V., Janvier M., Mulay S.M., Karlicky M., Aulanier G., Del Zanna G., Dzifcakova E., Mason H.E. & Schmieder B., 2016, ApJ, 823, 41
        Slipping magnetic reconnection, chromospheric evaporation, implosion, and precursors in the 2014 september 10 X1.6-class solar flare
    - Joshi N.C., Schmieder B., Magara T., Guo Y. & Aulanier G., 2016, ApJ, 820, 126
        Chain reconnections observed in sympathetic eruptions

    - Zuccarello F.P., Aulanier G. & Gilchrist S.A., 2015, ApJ, 814, 126
        Critical decay index at the onset of solar eruptions
    - Dalmasse K., Aulanier G., Démoulin P., Kliem B., Török T. & Pariat E., 2015, ApJ, 810, 17
        The origin of net electric currents in solar active regions
    - Schmieder B., Aulanier G. & Vrsnak B., 2015, Sol Phys, 290, 3457
        Flare-CME models: an observational perspective
    - Janvier M., Aulanier G. & Démoulin P., 2015, Sol Phys, 290, 3425
        From coronal observations to MHD simulations, the building blocks for 3D models of solar flares
    - Filippov B., Srivastava A.K., Dwivedi B.N., S. Masson, Aulanier G., Joshi N.C. & Uddin W., 2015, MNRAS, 451, 1117
        Formation of a rotating jet during the filament eruption on 10-11 April 2013
    - Dalmasse K., Chandra R., Schmieder B. & Aulanier G., 2015, A&A, 574, A37
        Can we explain atypical solar flares?

    - Janvier M., Aulanier G., Bommier V., Schmieder B., Démoulin P. & Pariat E., 2014 ApJ, 788, 60
        Electric currents in flare ribbons: observations and three-dimensional standard model
    - Chian A.C.L., Rempel E.L., Aulanier G., Schmieder B., Shadden S.C., Welsch B.T. & Yeates A.R., 2014, ApJ, 786, 51
        Detection of coherent structures in photospheric turbulent flows
    - Dudík J., Janvier M., Aulanier G., Del Zanna G., Karlický M., Mason H.E. & Schmieder B., 2014, ApJ, 784, 144
        Slipping magnetic reconnection during an X-class flare observated by SDO/AIA
    - Török T., Leake J.E., Titov V.S., Archontis V., Mikic Z., Linton M.G., Dalmasse K., Aulanier G. & Kliem B., 2014, ApJ Letters, 782, L10
        Distribution of electric currents in solar active regions
    - Dalmasse K., Pariat E., Démoulin P. & Aulanier G., 2014, Sol Phys, 289, 107
        Photospheric injection of magnetic helicity: connectivity-based flux density method

    - Sun X., Hoeksema J.T., Liu Y., Aulanier G., Su Y., Hannah I.G. & Hock R., 2013, ApJ, 778, 139
        Hot spine loops and the nature of a late-phase solar flare
    - Schmieder B., Guo Y., Moreno-Insertis F., Aulanier G., Yelles Chaouche L., Nishizuka N., Harra L.K., Thalmann J.K., Vargas Dominguez S., & Liu Y., 2013, A&A, 559, A1
        Twisting solar coronal jet launched at the boundary of an active region
    - Janvier M., Aulanier G., Pariat E. & Démoulin P., 2013, A&A, 555, A77
        The standard flare model in three dimensions, III. Slip-running reconnection properties
    - Aulanier G., Démoulin P., Schrijver C.J., Janvier M., Pariat E. & Schmieder B., 2013, A&A, 549, A66
        The standard flare model in three dimensions, II. Upper limit on solar flare energy
    - Jouve L., Brun A.S. & Aulanier G., 2013, ApJ, 762, 4
        Global dynamics of subsurface solar active regions

    - Dudík J., Aulanier G., Schmieder B., Zapiór M. & Heinzel P., 2012, ApJ, 761, 9
        Magnetic topology of bubbles in quiescent prominences
    - Reid H.A.S., Vilmer N., Aulanier G. & Pariat E., 2012, A&A, 547, 52
        X-ray and UV investigation into the magnetic connectivity of a solar flare
    - Aulanier G., Janvier M. & Schmieder B., 2012, A&A, 543, A110
        The standard flare model in three dimensions, I. Strong-to-weak shear transition in post-flare loops
    - Savcheva A., Pariat E., van Ballegooijen A., Aulanier G. & DeLuca E., 2012, ApJ, 750, 15
        Sigmoidal active region on the sun: comparison of a MHD simulation and a NLFFF model
    - Molodij G. & Aulanier G., 2012, Sol Phys, 276, 451
        Large field-of-view spectropolarimetric observations with a large aperture telescope
    - Masson S., Aulanier G., Pariat E. & Klein K.-L., 2012, Sol Phys, 276, 199
        Interchange slip-running reconnection and sweeping SEP beams

    - Bradshaw S., Aulanier G., & Del Zanna G., 2011, ApJ, 743, 66
        A reconnection-driven rarefaction wave model for coronal outflows
    - Schrijver C.J., Aulanier G., Title A.M., Pariat E. & Delannée C., 2011, ApJ, 738, 167
        The 2011/02/15 X2 flare, ribbons, coronal wave, and mass ejection: interpreting the 3D views from SDO and STEREO guided by MHD flux-rope modeling
    - Török T., Chandra R., Pariat E., Démoulin P., Schmieder B., Aulanier G., Linton M.G. & Mandrini C.H., 2011, ApJ, 728, 65
        Filament interaction modeled by flux rope reconnection
    - Del Zanna G., Aulanier G., Klein K.-L. & Török T., 2011, A&A, 526, A137
        A single picture for solar coronal outflows and radio noise storms

    - Guglielmino S.L, Bellot Rubio L.R., Zuccarello F., Aulanier G., Vargas Dominguez S. & Kamio S., 2010, ApJ, 724, 1083
        Multiwavelength observations of small-scale reconnection events triggered by magnetic flux emergence in the solar atmosphere
    - Mackay D.H., Karpen J.T., Ballester J.L., Schmieder B. & Aulanier G., 2010, Space Sc. Rev., 151, 4, 333
        Physics of solar prominences II: magnetic structure and dynamics
    - Démoulin P. & Aulanier G., 2010, ApJ, 718, 1388
        Criteria for flux rope eruption: non equilibrium vs. torus instability
    - Guo Y., Schmieder B., Démoulin P., Wiegelmann T., Aulanier G., Török T. & Bommier V., 2010, ApJ, 714, 343
        Coexisting flux rope and dipped arcade sections along one solar filament
    - Aulanier G., Török T., Démoulin P. & DeLuca. E.E., 2010, ApJ, 708, 314
        Formation of torus-unstable flux ropes and electric currents in erupting sigmoids

    - Restante A.L., Aulanier G. & Parnell C., 2009, A&A, 508, 433
        How skeletons turn into quasi-separatrix layers in source models
    - Bone L.A., van Driel-Gesztelyi L., Culhane J.L., Aulanier G. & Liewer P., 2009, Sol Phys, 259, 31
        Formation, interaction and merger of an active region and a quiescent filament prior to their eruption
    - Török T., Aulanier G., Schmieder S., Reeves K.K. & Golub L., 2009, ApJ, 704, 485
        Fan-spine topology formation through two-step reconnection driven by twisted flux emergence
    - Pariat E., Masson S. & Aulanier G., 2009, ApJ, 701, 1911
        Current build-up in emerging serpentine flux tubes
    - Chandra R., Schmieder B., Aulanier G. & Malherbe J.-M., 2009, Sol Phys, 258, 53
        Evidence of magnetic helicity in emerging flux and associated flare
    - Masson S., Pariat E., Aulanier G. & Schrijver C.J.,2009, ApJ, 700, 559
        The nature of flare ribbons in coronal null-point topology
    - Hussain G.A.J., Collier Cameron A., Jardine, M.M., Dunstone, N., Ramirez Velez J., Stempels H.C., Donati J.-F., Semel M., Aulanier G., Harries, T., Bouvier J. Dougados C., Ferreira J., Carter B.D. & Lawson W.A., 2009, MNRAS, 398, 189
        Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha
    - Canou A., Amari T., Bommier V., Schmieder B., Aulanier G. & Hui L., 2009, ApJ, 693, L27
        Evidence for a pre-eruptive twisted flux rope using the THEMIS vector magnetograph

    - Grappin R., Aulanier G. & Pinto R., 2008, A&A, 490, 353
        The MHD coupling between coronal dynamics and photospheric motions
    - Dudík J., Aulanier G., Schmieder B., Bommier V. & Roudier T., 2008, Sol Phys, 248, 29
        Topological departures from translational invariance along a filament observed by THEMIS
    - Schrijver C.J., DeRosa M.L., Metcalf T., Barnes G., Lites B., Tarbell T., McTiernan J., Valori G., Wiegelmann T., Wheatland M.S., Amari T., Aulanier G., Démoulin P., Fuhrmann M., Kusano K., Régnier S. & Thalmann J.K, 2008, ApJ, 675, 1637
        Non-linear force-free field modeling of a solar active region around the time of a major flare and CME
    - Delannée C., Török T., Aulanier G. & Hochedez J.-F., 2008, Sol Phys, 247, 123
        A new model for propagating parts of EIT waves : a current shell in a CME

    - Aulanier G., Golub L., DeLuca E.E., Cirtain J.W., Kano R., Ludquist L.L., Narukage N., Sakao T. & Weber M.A., 7 december 2007, Science, 318, 1588
        Slipping magnetic reconnection in coronal loops
    - Mein P., Mein N., Faurobert M., Aulanier G. & Malherbe J.-M., 2007, A&A, 463, 727
        Magnetic flux tubes observed with THEMIS/MSDP
    - Delannée C., Hochedez J.-F. & Aulanier G., 2007, A&A, 465, 603
        Stationary parts of an EIT and Moreton wave : a topological model

    - Schmieder B., Aulanier G., Mein P. & López Ariste A., 2006, Sol Phys, 238, 245
        Evolving photospheric flux concentrations and filament dynamic changes
    - Aulanier G., Pariat E., Démoulin P. & DeVore C.R., 2006, Sol Phys, 238, 347
        Slip-running reconnection in quasi-separatrix layers
    - Li H., Schmieder B., Aulanier G. & Berlicki A., 2006, Sol Phys, 237, 85
        Is pre-eruptive null point reconnection required for triggering solar eruptions?
    - López Ariste A., Aulanier G., Schmieder B. & Sainz Dalda A., 2006, A&A, 456, 725
        First observations of bald patches in a filament channel and at a barb endpoint
    - Aulanier G., DeVore C.R. & Antiochos S.K., 2006, ApJ, 646, 1380
        Solar prominence merging
    - Trottet G., Correira E., Karlický M., Aulanier G., Yan Y. & Kaufmann P., 2006, Sol Phys, 236, 75
        Electron acceleration and transport during the november 5, 1998 flare

    - Aulanier G., Pariat E. & Démoulin P., 2005, A&A, 444, 961
        Current sheet formation in quasi-separatrix layers and hyperbolic flux tubes
    - DeVore C.R., Antiochos S.K., & Aulanier G., 2005, ApJ, 629, 1122
        Solar prominence interactions
    - Aulanier G., Démoulin P. & Grappin R., 2005, A&A, 430, 1067
        Equilibrium and observational properties of line-tied twisted flux tubes

    - Berlicki A., Schmieder B., Vilmer N., Aulanier G. & Del Zanna G., 2004, A&A, 423, 1119
        Evolution and magnetic topology of the M1.0 flare of october 22, 2002
    - Pariat E., Aulanier G., Schmieder B., Georgoulis M., Rust D. & Bernasconi P., 2004, ApJ, 614, 1099
        Resistive flux emergence in undulatory flux tubes

    - Aulanier G. & Démoulin P., 2003, A&A, 402, 769
        The amplitude and orientation of prominence magnetic fields from constant-α magnetohydrostatic models
    - Maia D., Aulanier G., Wang S.J., Pick M., Malherbe J.-M. & Delaboudinière J.-P., 2003, A&A, 405, 313
        Interpretation of a complex CME event : coupling of scales in multiple flux systems

    - Démoulin P., Mandrini C.H., van Driel-Gesztelyi L., Lopez-Fuentes M. & Aulanier G., 2002, Sol Phys, 207, 87
        The magnetic helicity injected by shearing motions
    - Aulanier G. & Schmieder B., 2002, A&A, 386, 1106
        The magnetic nature of wide EUV filament channels and their role in the mass loading of CMEs
    - Aulanier G., DeVore C.R. & Antiochos S.K., 2002, ApJ Letters, 567, L97
        Prominence magnetic dips in sheared arcades
    - Démoulin P., Mandrini C.H., van Driel-Gesztelyi L., Thompson B.J., Plunkett S., Kovári Zs., Aulanier G. & Young A., 2002, A&A, 382, 650
        What is the source of the magnetic helicity shed by CMEs ? The long-term helicity budget of AR 7978
    - Eibe M.T., Aulanier G., Faurobert M., Mein P. & Malherbe J.-M., 2002, A&A, 381, 290
        Vertical structure of sunspots from THEMIS observations

    - Aulanier G., Srivastava N. & Martin S.F., 2000, ApJ, 543, 447
        Model prediction for an observed filament
    - Aulanier G., DeLuca E.E., Antiochos S.K., McMullen R.A. & Golub L., 2000, ApJ, 540, 1126
        The topology and evolution of the Bastille day flare
    - van Driel Gesztelyi L., Manoharan P.K., Démoulin P., Aulanier G., Mandrini C.H., Lopez-Fuentes M., Schmieder B., Orlando S., Thompson B. & Plunkett S., 2000, JASTP, 62, 1437
        Initiation of CMEs: the role of magnetic twist
    - Tang Y.H., Li Y.N., Schmieder B., Aulanier G., Démoulin P., Sakurai T. & Fang C., 2000, ApJ, 534, 482
        Brightening events of Hα and soft X-ray caused by emerging flux

    - Delannée C., Aulanier G., 1999, Sol Phys, 191, 107
        CME associated with transequatorial loops and a bald patch flare
    - Kucera T., Aulanier G., Schmieder B., Vial J.C. & Mein N., 1999, Sol Phys, 186, 259
        Filament channel fine structures in Si IV lines (SOHO) related to a  3-D magnetic model
    - Aulanier G., Démoulin P., Mein N., van Driel-Gesztelyi L., Mein P. & Schmieder B., 1999, A&A, 342, 867
        3-D magnetic configurations supporting prominences, III. Evolution of fine structures observed in a filament channel

    - Aulanier G., Démoulin P., Schmieder B., Fang C. & Tang Y.H., 1998, Sol Phys, 183, 369
        Magnetohydrostatic model of a bald patch flare
    - Aulanier G., Démoulin P., van Driel-Gesztelyi L., Mein P. & DeForest C., 1998, A&A, 335, 309
        3-D magnetic configurations supporting prominences, II. The lateral feet as a perturbation of a twisted flux-tube
    - Aulanier G. & Démoulin P., 1998, A&A, 329, 1125
        3-D magnetic configurations supporting prominences, I. The natural presence of lateral feet

    - Schmieder B., Aulanier G., Démoulin P., van Driel-Gesztelyi L., Roudier T., Nitta N. & Cauzzi G., 1997, A&A, 325, 1213
        Magnetic reconnexion driven by emergence of sheared magnetic field

    - Schmieder, B., Démoulin, P., Aulanier G. & Golub, L., 1996, ApJ, 467, 881
        Differential magnetic shear in an active region
     
  •  Selection of review papers :
  • - Aulanier G., 2014, in Nature of Prominences and their Role in Space Weather, Proceedings of the International Astronomical Union, IAU Symposium 300, 184
        The physical mechanisms that initiate and drive solar eruptions
    - Aulanier G., 2011, in The Physics of Sun and Star Spots, Proceedings of the International Astronomical Union, IAU Symposium 273, 233
        Coronal heating and flaring in QSLs
    - Aulanier G. & Schmieder B., 2008, in Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, 543
        Magnetic helicity and solar prominence formation
     
  •  Indices for scientific impact :
  • h-index            : 38       (number of my publications cited h times or more in published papers)
    m-index            : 1.90     (h-index divided by the numbers of years since the 1st refereed publication)
    citation count     : 4163     (total number of citations in published papers)
    source : NASA ADS & J.E. Hirsch's original paper

     
  •  Employements :
  • since 2012  : Astronomer at the the Observatoire de Paris, in the Laboratoire d'Etudes Spatiales
                  et d'instrumentation en Astrophysique (LESIA).
                    civil servant from the Conseil National des Astronomes et Physiciens (CNAP).
    2001-2012   : Assistant Astronomer at the Observatoire de Paris, in the LESIA.
                    civil servant from the CNAP.
    2000-2001   : Postdoc at the Département d'Astrophysique Solaire de l'Observatoire de Paris (DASOP).
                    contractor from the Centre National d'Etudes Spatiales (CNES).
    1999-2000   : Visiting research associate at the Solar Theory Section (STS) of the Naval Research
                  Laboratory (NRL) in Washington DC, USA.
                    contractor from the George Mason University (GMU).
    1996-1998   : Ph.D. student at the Observatoire of Paris, in the DASOP under the supervision of
                  B. Schmieder & P. Démoulin.
                    beneficiary of a grant from the ministry of higher education and research (MESR).
    spring 1996 : Master's internship in cosmology at the Commissariat à l'Energie Atomique (CEA) in
                  Saclay, at the Service d'Astrophysique (SAp) under the supervision of J.-P. Chièze.
     
  •  Education :
  • 2010 : HDR (Habilitation à Diriger des Recherches) of the Université Paris Diderot (Paris VII).
    1998 : PhD of the Université Pierre & Marie Curie (Paris VI).
    1996 : DEA (equivalent to Master M2) in astrophysics (Paris VI).
    1995 : Maitrise (equivalent to Master M1 in fundamental physics (Paris VII).
    1994 : Licence in fundamental physics (Paris VII).
    1991 : Baccalauréat C.
     
  •  The Sun during the last 48h :
  • Real-time movies of the chromosphere & prominences (top-left), corona (top-right), photosphere & sunspots (bottom-left) and photospheric magnetic field (bottom-right) observed by the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO).
     

     

     
    last modification : June 3, 2016