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Querejeta, M; Eliche-Moral, M C; Tapia, T; Borlaff, A; van de Ven, G; Lyubenova, M; Martig, M; Falcon-Barroso, J; Mendez-Abreu, J
Astronomy and astrophysics (Berlin), 7/2015, Letnik: 579Journal Article
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 lambda sub(Re)-R sub(90)/R sub(50) plane found by the CALIFA team. Major mergers thus offer a feasible explanation for the transformation of spirals into S0s.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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