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Título:
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Constraints on the evolutionary mechanisms of massive galaxies since z ? 1 from their velocity dispersions
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Autores:
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Peralta de Arriba, L. ;
Balcells, M. ;
Trujillo, I. ;
Falcón Barroso, J. ;
Tapia, T. ;
Cardiel López, Nicolás ;
Gallego Maestro, Jesús ;
Guzmán, R. ;
Hempel, A. ;
Martín Navarro, I. ;
Pérez González, Pablo Guillermo ;
Sánchez Blázquez, P.
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Tipo de documento:
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texto impreso
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Editorial:
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Wiley, 2015-10-11
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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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Several authors have reported that the dynamical masses of massive compact galaxies (M_? ? 10^11?M_?, r_e ? 1?kpc), computed as M_dyn=5.0 ?_e^2r_e/GMdyn=5.0 ?e2re/G, are lower than their stellar masses M_?. In a previous study from our group, the discrepancy is interpreted as a breakdown of the assumption of homology that underlie the M_dyn determinations. Here, we present new spectroscopy of six redshift z ? 1.0 massive compact ellipticals from the Extended Groth Strip, obtained with the 10.4 m Gran Telescopio Canarias. We obtain velocity dispersions in the range 161–340 km?s^?1. As found by previous studies of massive compact galaxies, our velocity dispersions are lower than the virial expectation, and all of our galaxies show M_dyn
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En línea:
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https://eprints.ucm.es/id/eprint/35062/1/cardiel94preprint.pdf
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