The star formation rate function of the local universe

D. Christopher Martin, Mark Seibert, Véronique Buat, Jorge Iglesias-PÁRAMO, Tom A. Barlow, Luciana Bianchi, Yong I.K. Byun, José Donas, Karl Forster, Peter G. Friedman, Timothy M. Heckman, Patrick N. Jelinsky, Young Wook Lee, Barry F. Madore, Roger F. Malina, Bruno Milliard, Patrick F. Morrissey, Susan G. Neff, R. Michael Rich, David SchiminovichOswald H.W. Siegmund, Todd Small, Alex S. Szalay, Barry Y. Welsh, Ted K. Wyder

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Abstract

We have derived the bivariate luminosity function for the far-ultraviolet (1530 Å) and far-infrared (60 μm). We use matched GALEX and IRAS data, and redshifts from NED and the PSCz survey. We have derived a total star formation luminosity function φ(Ltot), with Ltot = LFUV + LFIR. Using these, we determined the cosmic "star formation rate" (SFR) function and density for the local universe. The total SFR function φ(Ltot) is fitted very well by a lognormal distribution over 5 decades of luminosity. We find that the bivariate luminosity function φ(LFUV, LFIR) shows a bimodal behavior, with LFIR tracking LFUV for L tot < 1010 L⊙ and LFUV saturating at ∼1010 L⊙, while Ltot ∼ LFIR for higher luminosities. We also calculate the SFR density and compare it with other measurements.

Original languageEnglish
Pages (from-to)L59-L62
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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    Martin, D. C., Seibert, M., Buat, V., Iglesias-PÁRAMO, J., Barlow, T. A., Bianchi, L., Byun, Y. I. K., Donas, J., Forster, K., Friedman, P. G., Heckman, T. M., Jelinsky, P. N., Lee, Y. W., Madore, B. F., Malina, R. F., Milliard, B., Morrissey, P. F., Neff, S. G., Michael Rich, R., ... Wyder, T. K. (2005). The star formation rate function of the local universe. Astrophysical Journal, 619(1 II), L59-L62. https://doi.org/10.1086/425496