On the Connection Between Shape and Stellar Population in Early-type Galaxies

Bibcode
2011ApJ...727L...6D
DOI
10.1088/2041-8205/727/1/L6
D'Onofrio, M.; Valentinuzzi, T.; Fasano, G.; Moretti, A.; Bettoni, D.; Poggianti, B.; Vulcani, B.; Varela, J.; Fritz, J.; Cava, A.; Kjærgaard, P.; Moles, M.; Couch, W. J.; Dressler, A.
Referencia bibliográfica

The Astrophysical Journal Letters, Volume 727, Issue 1, article id. L6 (2011).

Fecha de publicación:
1
2011
Número de autores
14
Número de autores del IAC
2
Número de citas
12
Número de citas referidas
10
Descripción
We report on the discovery of a relation between the stellar mass M* of early-type galaxies (hereafter ETGs), their shape, as parameterized by the Sersic index n, and their stellar mass-to-light ratio M*/L. In a three-dimensional log space defined by these variables, the ETGs populate a plane surface with small scatter. This relation tells us that galaxy shape and stellar population are not independent physical variables, a result that must be accounted for by theories of galaxy formation and evolution.
Proyectos relacionados
Project Image
Formación y Evolución de Galaxias: Observaciones Infrarrojas y en otras Longitudes de Onda
Este grupo desarrolla varios proyectos extragalácticos en diferentes rangos del espectro electromagnético utilizando satélites y telescopios en tierra para estudiar la evolución cosmológica de las galaxias y el origen de la actividad nuclear en galaxias activas. En el aspecto instrumental, el grupo forma parte del consorcio internacional que ha
Ismael
Pérez Fournon
En ejecución
Tipo
Con árbitro
Galaxias
Formación y Evolución de Galaxias (FYEG)

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