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Pushing the limits of the Gaia space mission by analyzing galaxy morphology

dc.contributor.authorKRONE-MARTINS, A.
hal.structure.identifierM2A 2013
dc.contributor.authorDUCOURANT, C.
hal.structure.identifierInstituto de Astronomia, Geofísica e Ciências Atmosféricas [São Paulo] [IAG]
dc.contributor.authorTEIXEIRA, R.
dc.contributor.authorGALLUCCIO, L.
hal.structure.identifierGalaxies, Etoiles, Physique, Instrumentation [GEPI]
dc.contributor.authorGAVRAS, P.
dc.contributor.authorANJOS, S. Dos
dc.contributor.authorDE SOUZA, R. E.
dc.contributor.authorMACHADO, R. E. G.
hal.structure.identifierM2A 2013
dc.contributor.authorLE CAMPION, J.-F.
dc.date.created2013-07-22
dc.date.issued2013
dc.identifier.issn0004-6361
dc.description.abstractEnThe ESA Gaia mission, to be launched during 2013, will observe billions of objects, among which many galaxies, during its scanning of the sky. This will provide a large space-based dataset with unprecedented spatial resolution. Because of its natural Galactic and Astrometric priority, Gaia's observational strategy was optimized for point sources. Nonetheless, it is expected that 10^6 sources will be extragalactic, and a large portion of them will be angularly small galaxies. Although the mission was designed for point sources, a dedicated analysis of the raw data will allow the recovery of morphology of those objects at a 0.2" level. This may constitute a unique all-sky survey of such galaxies. We describe the conceptual design of the method we created for performing the morphological analysis of these objects as well as first results obtained from data simulations of low-resolution, highly binned, satellite data. Based on the obtained results we conclude that it is possible to push the limits of the Gaia space mission by analyzing galaxy morphology. (Abridged)
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.entechniques: image processing
dc.subject.engalaxies: general
dc.subject.enmethods: data analysis
dc.subject.ensurveys
dc.subject.enspace vehicles: instruments
dc.title.enPushing the limits of the Gaia space mission by analyzing galaxy morphology
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201219697
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.identifier.arxiv1307.5732
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageid.A102
bordeaux.volume556
bordeaux.peerReviewedoui
hal.identifierhal-00858321
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00858321v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2013&rft.volume=556&rft.spage=id.A102&rft.epage=id.A102&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=KRONE-MARTINS,%20A.&DUCOURANT,%20C.&TEIXEIRA,%20R.&GALLUCCIO,%20L.&GAVRAS,%20P.&rft.genre=article


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