Evidence for radially independent size growth of early-type galaxies in clusters
Journal
Date Issued
2020
Author(s)
Abstract
It is not well understood whether the growth of early-type cluster galaxies
proceeds inside-out, outside-in, or at the same pace at all radii. In this work
we measured the galaxy size, defined by the radius including 80\% of the galaxy
light, non-parametrically. We also determined a non-parametric estimate of
galaxy light concentration, which measures the curvature of the surface
brightness profile in the galaxy outskirts. We used an almost random sampling
of a mass-limited sample formed by 128 morphologically early-type galaxies in
clusters with $\log M/M_{\odot} \ga 10.7$ spanning the wide range
$0.17
Volume
640
Start page
A34
Issn Identifier
0004-6361
Ads BibCode
2020A&A...640A..34A
Rights
open.access
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