Early-type Galaxies in the Cluster Abell 2390 at z=0.23

Details Early-type Galaxies in the Cluster Abell 2390 at z=0.23 Early-type Galaxies in the Cluster Abell 2390 at z=0.23

2003-03-25

arxiv.org/abs/astro-ph/0303545v1

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures, to appear in "Carnegie Observatories Astrophysics Series, Vol. 3: Clusters of Galaxies: Probes of Cosmolog

Scientific paper

To examine the evolution of the early-type galaxy population in the rich cluster Abell 2390 at z=0.23 we have gained spectroscopic data of 51 elliptical and lenticular galaxies with MOSCA at the 3.5 m telescope on Calar Alto Observatory. This investigation spans both a broad range in luminosity (-19.3>M_B>-22.3) and uses a wide field of view of 10'x10', therefore the environmental dependence of different formation scenarios can be analysed in detail as a function of radius from the cluster centre. Here we present results on the surface brightness modelling of galaxies where morphological and structural information is available in the F814W filter aboard the Hubble Space Telescope (HST) and investigate for this subsample the evolution of the Fundamental Plane.

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