Spectro-Morphology of . Sébastien Lauger, Denis Burgarella, Véronique Buat

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Sébastien Lauger, Denis Burgarella, Véronique Buat. Spectro-Morphology of Galaxies.. 2004. ￿hal- 00003079v1￿

HAL Id: hal-00003079 https://hal.archives-ouvertes.fr/hal-00003079v1 Preprint submitted on 14 Oct 2004 (v1), last revised 15 Oct 2004 (v2)

HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. ape,i ih epsil ocntantemcaim of mechanisms the constrain to possible be might characteri it morphological samples, comparing By 1997). clas Lahav Hubble & The (Naim models. g evolution irregular of and validity merging the between firm discriminate to want also We Buh oe rn 96.Teoii fti morphologica this of origin The 1996). evolutio Frenk an & for Cole, accounting (Baugh, by evolution den this van 1996, predict al. models et Abraham 1998, al. importa et an (Brinchmann and phology distance, the with increase to seems galaxies rt h ehdweeterslscnb hce yeye, by checked be can morp results within the where galaxies method classify the to brate able be elaborati to in step is first classification A 1996). al. et (Giavalisco evolution al et (Burgarella K-correction morphological the twofold: bet.Mroe,wt eecpsrahn u oredshif to out reaching telescopes fain with for Moreover, (Sandage appropriate objects. galaxies not bright is classification nearby this of that sample appears a of study the the from on galaxi based organize classification, to Hubble-Sandage attempt the an evolution, process In physical formation. of their result since the tems is galaxies of morphology The Introduction 1. content. stellar galaxies: evolution, galaxies: sion, e words. Key edopitrqet to requests offprint Send ccsd-00003079, version 1 - 14 Oct 2004 DI ilb netdb adlater) hand by inserted be will (DOI: Astrophysics & Astronomy ut-aeegh(VR vltoaymethod evolutionary (UV-R) multi-wavelength Abstract. ... Accepted / ... Received Sip du Traverse 12 Marseille, Cedex Marseille 13376 de d’Astrophysique Laboratoire pcr-opooyo aais:a : Galaxies of Spectro-Morphology aais udmna aaees aais high-redshi galaxies: parameters, fundamental galaxies: nasrc hudb given be should abstract An .lue,[email protected] lauger, S. : .Lue,D ugrlaadV Buat V. and Burgarella D. Lauger, S. aucitn.lue˙ri.ye203Otbr1,2004 14, October lauger˙arxiv.hyper20053 no. manuscript eryglxe rsmall-sized or galaxies nearby t 01 n h nrni galaxy intrinsic the and 2001) . ts gamto fmorphological of method a ng ug-ods ai,wsbuilt was ratio, bulge-to-disk z tfato a nsa mor- unusual has fraction nt ooia oe n ocali- to and boxes hological fteglx morphology galaxy the of n i.e. sta ce nteesys- these on acted that es icto al nti point this on fails sification sadt nesadtheir understand to and es omto n vlto of evolution and formation ≥ tc flcladdistant and local of stics hnewith change l eg 02.Theoretical 2002). Bergh lxe,i re ocon- to order in alaxies, h aeo unclassified of rate the 1 91.Hwvr tnow it However, 1961). ntenab universe. nearby the in o ..,F- B.P.8, hon t lrvoe emis- ultraviolet ft, z slikely is 2 S. Lauger, D. Burgarella, and V. Buat: Spectro-morphology of galaxies galaxies in the early universe. As a result, it is necessary to elaborate a new system of classification, which would be more objective than the Hubble classification. A scheme based on quantitative indices could have the advantage to not implicate human judgment and to be automatisable, in orde