The GALEX UV emission in shell galaxies
A. Marino, R. Rampazzo, R. Tantalo, D. Bettoni, L. M. Buson, C., Chiosi, G. Galletta
TL;DR
This paper investigates the ultraviolet emission properties of shell galaxies using GALEX data to understand their recent accretion and merging history and its role in galaxy evolution.
Contribution
It provides the first detailed UV photometric analysis of shell galaxies, linking UV emission to their merger history and evolution.
Findings
Shell galaxies show significant UV emission indicating recent star formation.
UV properties correlate with merger features and galaxy environment.
Results suggest mergers influence galaxy evolution through UV-bright phases.
Abstract
Shell galaxies are widely considered the debris of recent accretion/merging episodes. Their high frequency in low density environment suggests that such episodes could be among the driver of the early-type galaxy secular evolution. We present far and near UV (FUV and NUV respectively hereafter) GALEX photometric properties of a sample of shell galaxies.
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Taxonomy
TopicsAstronomy and Astrophysical Research · Astronomical Observations and Instrumentation · Scientific Research and Discoveries