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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 720042.0, MPI für Astronomie / Publikationen_mpia
Formation of S0 galaxies through mergers. Explaining angular momentum and concentration change from spirals to S0s
Authors:Querejeta, M.; Eliche-Moral, M. C.; Tapia, T.; Borlaff, A.; van de Ven, G.; Lyubenova, M.; Martig, M.; Falcón-Barroso, J.; Méndez-Abreu, J.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Astronomy and Astrophysics
Volume:579
Start Page:id. L2 (6 pp)
Audience:Not Specified
Abstract / Description:The CALIFA team has recently found that the stellar angular momentum and concentration of late-type spiral galaxies are incompatible with those of lenticular galaxies (S0s), concluding that fading alone cannot satisfactorily explain the evolution from spirals into S0s. Here we explore whether major mergers can provide an alternative way to transform spirals into S0s by analysing the spiral-spiral major mergers from the GalMer database that lead to realistic, relaxed S0-like galaxies. We find that the change in stellar angular momentum and concentration can explain the differences in the λRe-R90/R50 plane found by the CALIFA team. Major mergers thus offer a feasible explanation for the transformation of spirals into S0s. Table 1 is available in electronic form at <A href="http://www.aanda.org/10.1051/0004-6361/201526354/olm">http://www.aanda.org</A>
Free Keywords:galaxies: interactions; galaxies: evolution; galaxies: kinematics and dynamics; galaxies: elliptical and lenticular; cD
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-6361
URL:http://cdsads.u-strasbg.fr/abs/2015A%26A...579L......
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