The UV Galaxy Luminosity Function in the Local Universe from GALEX Data
Abstract
We present the results of a determination of the galaxy luminosity function at ultraviolet wavelengths at redshifts of z=0.0-0.1 from GALEX data. We determined the luminosity function in the GALEX FUV and NUV bands from a sample of galaxies with UV magnitudes between 17 and 20 that are drawn from a total of 56.73 deg2 of GALEX fields overlapping the bj-selected 2dF Galaxy Redshift Survey. The resulting luminosity functions are fainter than previous UV estimates and result in total UV luminosity densities of 10(25.55+/-0.12) ergs s-1 Hz-1 Mpc-3 and 10(25.72+/-0.12) ergs s-1 Hz-1 Mpc-3 at 1530 Ang. and 2310 Ang., respectively. This corresponds to a local star formation rate density in agreement with previous estimates made with H-alpha-selected data for reasonable assumptions about the UV extinction.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.