Fossil group origins. IX. Probing the formation of fossil galaxy groups with stellar population gradients of their central galaxies
Context. Fossil groups (FGs) are galaxy aggregates with an extended and luminous X-ray halo, which are dominated by a very massive early-type galaxy and lack of L∗ objects. FGs are indeed characterized by a large magnitude gap between their central and surrounding galaxies. This is explained by either speculating that FGs are failed groups that
Corsini, E. M. et al.
Fecha de publicación:
10
2018