DUCOURANT, C.; KRONE-MARTINS, A.; GALLUCCIO, L.,; TEIXEIRA, R.

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DUCOURANT, C.
M2A 2014

KRONE-MARTINS, A.

GALLUCCIO, L.,

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Ce document a été publié dans

SF2A-2014: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: J. Ballet, F. Martins, F. Bournaud, R. Monier, C. Reylé, pp.421-425, held in Paris 03-06-june 2014, 2014-06-03, Paris. 2014-12p. 421 - 425

Résumé en anglais

Gaia's main goal is to study the Milky Way and its stellar content and to provide us with their highly accurate astrometric and photometric parameters. However the satellite will also survey many other objects. Gaia will especially observe a few millions of tiny galaxies of the local Universe and will give us a unique chance to access to a whole sky survey of these objects that no ground-based survey such as Sloan Digital Sky Survey has ever recorded, thanks to its high resolution. We present here the "Extended Object" DPAC DU470 work to retrieve the morphology of such objects and a theoretical study concerning the expected detections by Gaia. We show that most of the detected galaxies by Gaia will be bulge-type and elliptical.< Réduire

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Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804