Exploring the Nature of z<1 Ultraviolet Luminous Galaxies (UVLGs): Local Analogs of Lyman Break Galaxies

Astronomy and Astrophysics – Astronomy

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Scientific paper

High-redshift (z>2) UV-selected galaxies, such as Lyman Break Galaxies (LBGs), constitute a key population for understanding galaxy formation and evolution. Many studies have focused on the studying these galaxies in order to pinpoint the cause of their intense star formation. However, as distant galaxies, observations of these galaxies require time-consuming, deep coverage in order to sufficiently study their properties. GALEX has identified a population of z<1 galaxies, Ultraviolet Luminous Galaxies (UVLGs)--a subset, the supercompact UVLGs (ScUVLGs), are remarkably similar to LBGs in most physical properties. In my thesis, I have studied diverse properties of these galaxies: 1. their environments, 2. the dynamics and kinematics of their ionized gas, and 3. their star formation histories and dust attenuation properties. As local LBG-analogs, ScUVLGs present an opportunity for studying details of galaxy formation in the early Universe with very high physical resolution and sensitivity; as unique and extreme star-forming systems in the local universe, ScUVLGs merit detailed study.

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