Planck-cmb-allsky

Studies of IRAS sources at high galactic latitudes - III. Luminosity functions at 25, 60 and 100 mu.m and the correlation of optical and infrared luminosities.

August 1987 • 1987MNRAS.227..589R

Authors • Rowan-Robinson, M. • Helou, G. • Walker, D.

Abstract • Luminosity functions at 25, 60 and 100 microns for IRAS sources with galaxies brighter than 14.5 mag at b of greater than 60 deg are presented, together with simple model fits which are consistent with the observed source counts. Only the 60- and 100-micron luminosities are well correlated with the corrected absolute magnitude, and the ratio of the far-infrared luminosity to the optical luminosity is clearly correlated with 100/60-micron color, behavior which is consistent with a mixture of a normal disk component and a starburst component. Results indicate that the adopted internal extinction correction is a good approximation. The present optical luminosity functions are consistent with the Gaussian form for Virgo spirals adopted by Sandage et al. (1985).

Links


IPAC Authors
(alphabetical)

George Helou

IPAC Executive Director