Relaxed blue ellipticals: accretion-driven stellar growth is a key evolutionary channel for low mass elliptical galaxies
Ilin Lazar,
Sugata Kaviraj,
Garreth Martin
et al.
Abstract:How elliptical galaxies form is a key question in observational cosmology. While the formation of massive ellipticals is strongly linked to mergers, the low mass (M /M < 10 9.5 ) regime remains less well explored. In particular, studying elliptical populations when they are blue, and therefore rapidly building stellar mass, offers strong constraints on their formation. Here, we study 108 blue, low-mass ellipticals (which have a median stellar mass of 10 8.7 M ) at z < 0.3 in the COSMOS field. Visual inspection… Show more
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