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Commission 45: Spectral Classification

dc.contributor.authorGRAY, Richard O.
dc.contributor.authorNORDSTRÖM, Birgitta
dc.contributor.authorGIRIDHAR, Sunetra
dc.contributor.authorBURGASSER, Adam J.
dc.contributor.authorEYER, Laurent
hal.structure.identifierInter-University Centre for Astronomy and Astrophysics [Pune] [IUCAA]
dc.contributor.authorGUPTA, Ranjan
dc.contributor.authorHANSON, Margaret M.
dc.contributor.authorIRWIN, Michael J.
hal.structure.identifierM2A 2012
dc.contributor.authorSOUBIRAN, C.
dc.date.issued2012-04
dc.date.conference2009
dc.description.abstractEnThis report gives an update on developments since the last General Assembly in Rio de Janeiro. Classification - both photometric and spectral - continues to play a vital role in stellar astrophysics and stellar surveys. During the past three years, rapid progress has been made in the classification of brown dwarfs, with the discovery of the first Y dwarfs and the introduction of a near-IR classification system for M- and L-dwarfs. The number of known L-dwarfs now exceeds 1000, and so peculiar types are beginning to show up. For instance, there is now enough material to define a low-gravity spectral sequence for the L0 - L5 dwarfs. In addition, a number of unusally blue L-dwarfs are now known. Large-area surveys, always of interest to Commission 45, have proliferated during this period, including RAVE, SEGUE, and WISE with many more in the planning stages.
dc.language.isoen
dc.source.titleProceedings of the International Astronomical Union - Transactions IAU, Volume 7, Issue T28, p. 190-195, 2012
dc.title.enCommission 45: Spectral Classification
dc.typeCommunication dans un congrès
dc.identifier.doi10.1017/S1743921312002785
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
bordeaux.page190-195
bordeaux.volume28
bordeaux.countryBR
bordeaux.title.proceedingProceedings of the International Astronomical Union - Transactions IAU, Volume 7, Issue T28, p. 190-195, 2012
bordeaux.conference.cityRio de Janeiro
bordeaux.peerReviewedoui
hal.identifierhal-00688947
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00688947v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Proceedings%20of%20the%20International%20Astronomical%20Union%20-%20Transactions%20IAU,%20Volume%207,%20Issue%20T28,%20p.%20190-195,%202012&rft.date=2012-04&rft.volume=28&rft.spage=190-195&rft.epage=190-195&rft.au=GRAY,%20Richard%20O.&NORDSTR%C3%96M,%20Birgitta&GIRIDHAR,%20Sunetra&BURGASSER,%20Adam%20J.&EYER,%20Laurent&rft.genre=unknown


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