The ultraviolet galaxy luminosity function in the local universe from galex data

Ted K. Wyder, Marie A. Treyer, Bruno Milliard, David Schiminovich, Stéphane Arnouts, Tamás Budavári, Tom A. Barlow, Luciana Bianchi, Yong Ik Byun, José Donas, Karl Forster, Peter G. Friedman, Timothy M. Heckman, Patrick N. Jelinsky, Young Wook Lee, Barry F. Madore, Roger F. Malina, D. Christopher Martin, Patrick Morrissey, Susan G. NeffR. Michael Rich, Oswald H.W. Siegmund, Todd Small, Alex S. Szalay, Barry Y. Welsh

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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 Galaxy Evolution Explorer (GALEX) data. We determined the luminosity function in the GALEX far-UV and near-UV 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 Two-Degree Field 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 and 1025.72±0.12 ergs s -1 Hz-1 Mpc-3 at 1530 and 2310 Å, respectively. This corresponds to a local star formation rate density in agreement with previous estimates made with Hα-selected data for reasonable assumptions about the UV extinction.

Original languageEnglish
Pages (from-to)L15-L18
JournalAstrophysical Journal
Volume619
Issue number1 II
DOIs
Publication statusPublished - 2005 Jan 20

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Wyder, T. K., Treyer, M. A., Milliard, B., Schiminovich, D., Arnouts, S., Budavári, T., Barlow, T. A., Bianchi, L., Byun, Y. I., Donas, J., Forster, K., Friedman, P. G., Heckman, T. M., Jelinsky, P. N., Lee, Y. W., Madore, B. F., Malina, R. F., Martin, D. C., Morrissey, P., ... Welsh, B. Y. (2005). The ultraviolet galaxy luminosity function in the local universe from galex data. Astrophysical Journal, 619(1 II), L15-L18. https://doi.org/10.1086/424735