French version




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Workshop at CIAS, Salle de Conférences du Château, Observatoire de Meudon

March 28-29, 2006

LOFAR, the Low Frequency Array :

Low-frequency Radioastronomy at a few arcsec resolution

Astrophysics, Cosmology and Astroparticles

Towards a French participation …

Organising Committee :

The organization is coordinated with ASTRON (Dwingeloo, Netherlands).

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The project :

LOFAR is a large array of low-frequency antennae (<30 to 240 MHz), that will allow an improvement by 1 to 2 orders of magnitude in sensitivity and angular resolution compared to existing instruments. Permitting wide-field, multi-frequency and multi-beams imaging with high sensitivity and angular, spectral and temporal resolutions, and including full polarization measurements, LOFAR will be the first general-purpose low-frequency telescope, as well as the first spectro-imager at frequencies < 100 MHz. The key scientific objectives include a deep sky survey, the study of reionization of the Universe, of transient sources such as pulsars, jets, flaring stars, of planets and exoplanets, the detection of very-high energy cosmic rays and the physics of the interplanetary medium. LOFAR is a Dutch project led by the institute ASTRON in Dwingeloo. Presently under construction, the instrument will be operational in 2007-2008 with maximal interferometric bases of ~100 km (angular resolution between 2.5" at 240 MHz and 20" at 30 MHz). The project is now open to european contributions, in particular through a physical extension of the array (adding distant stations will improve the angular resolution by one order of magnitude), and an increased potential for scientific data analysis. Germany and Sweden have already joined the project.

Goals of the workshop :

Program :

The workshop will include presentation(s) of the LOFAR project and of its scientific goals by the dutch project leaders, as well as contributed talks. The latter can be in the form of synthetic presentations on key scientific aspects, stressing the interest of French teams, or more dedicated presentations which may concern any specific aspect of the French participation in LOFAR (specific scientific goals, technical aspects, data processing, etc.).


Last modification on 16 october 2006