Bibcode
Díaz-García, L. A.; Mármol-Queraltó, E.; Trujillo, I.; Cenarro, A. J.; López-Sanjuan, C.; Pérez-González, P. G.; Barro, G.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 433, Issue 1, p.60-68
Advertised on:
7
2013
Número de citas
6
Número de citas referidas
6
Descripción
Using a compilation of 379 massive (stellar mass M ≳
1011 M⊙) spheroid-like galaxies from the
near-infrared Palomar/DEEP-2 survey, we investigated, up to z ˜ 1,
whether the presence of companions depends on the size of the host
galaxy. We explored the presence of companions for mass ratios with
respect to the central massive galaxy down to 1 : 10 and 1 : 100, and
within projected distances of 30, 50 and 100 kpc of these objects. We
found evidence that these companions are equally distributed around both
compact and extended massive spheroid-like galaxies. This suggests that,
at least since z ˜ 1, the merger activity in these objects is
nearly homogeneous across the whole population and that the merger
history is not affected by the size of the host galaxy. Our results
could indicate that compact and extended massive spheroid-like galaxies
are increasing in size at the same rate.
Proyectos relacionados
![TRACES Miembros del grupo](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/image.png?h=bdabf5b0&itok=05E6Kg4w)
Huellas de la Formación de las Galaxias: Poblaciones estelares, Dinámica y Morfología
Bienvenida a la página web del g rupo de investigación Traces of Galaxy Formation. Somos un grupo de investigación amplio, diverso y muy activo cuyo objetivo principal es entender la formación de galaxias en el Universo de una manera lo más completa posible. Con el estudio detellado de las poblaciones estelares como bandera, estamos constantemente
Ignacio
Martín Navarro