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Título:
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Mass assembly and morphological transformations since z ? 3 from CANDELS
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Autores:
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Huertas Company, M. ;
Bernardi, M. ;
Pérez González, Pablo Guillermo ;
Ashby, M. L. N. ;
Barro, G. ;
Conselice, C. ;
Daddi, E. ;
Dekel, A. ;
Dimauro, P. ;
Faber, S. M. ;
Grogin, N. A. ;
Kartaltepe, J. S. ;
Kocevski, D. D. ;
Koekemoer, A. M. ;
Koo, D. C. ;
Mei, S. ;
Shankar, F.
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Tipo de documento:
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texto impreso
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Editorial:
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Wiley, 2016-11-11
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Astrofísica
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Materia = Ciencias: Física: Astronomía
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Tipo = Artículo
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Resumen:
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We quantify the evolution of the stellar mass functions (SMFs) of star-forming and quiescent galaxies as a function of morphology from z ? 3 to the present. Our sample consists of ?50?000 galaxies in the CANDELS fields (?880 arcmin^2), which we divide into four main morphological types, i.e. pure bulge-dominated systems, pure spiral disc-dominated, intermediate two-component bulge+disc systems and irregular disturbed galaxies. At z ? 2, 80?per?cent of the stellar mass density of star-forming galaxies is in irregular systems. However, by z ? 0.5, irregular objects only dominate at stellar masses below 10^9?M_?. A majority of the star-forming irregulars present at z ? 2 undergo a gradual transformation from disturbed to normal spiral disc morphologies by z ? 1 without significant interruption to their star formation. Rejuvenation after a quenching event does not seem to be common except perhaps for the most massive objects, because the fraction of bulge-dominated star-forming galaxies with M^*/M_? > 10^10.7 reaches 40?per?cent at z 2, the SMF of quiescent galaxies above M^* is dominated by compact spheroids. Quenching at this early epoch destroys the disc and produces a compact remnant unless the star-forming progenitors at even higher redshifts are significantly more dense. At 1
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En línea:
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https://eprints.ucm.es/40412/1/perezgonzalez162preprint.pdf
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