Multi-variate Optical to Infrared Luminosity Functions of SWIRE Galaxies with Measured Redshifts

Details Multi-variate Optical to Infrared Luminosity Functions of SWIRE Galaxies with Measured Redshifts Multi-variate Optical to Infrared Luminosity Functions of SWIRE Galaxies with Measured Redshifts

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20394g&link_type=abstract

Spitzer Proposal ID #20394

Computer Science

Scientific paper

Multi-variate optical to infrared luminosity functions of nearby galaxies will reveal the complex interplay between starlight, dust, and overall luminosity within the galaxy population. We propose to measure the ugriz-3-4-6-8-24 luminosity function of galaxies detected by the SWIRE survey with redshifts measured by Sloan and 2dF surveys. We will use principal component analysis to remove correlations from the resulting 10-dimensional histogram, reducing it to the most relevant 2 to 3 dimensions. The luminosity function of the principal components will show the dependence of optical to infrared colors upon luminosity, measuring a brightness-dustiness relation. We will also calculate more traditional measures of luminosity functions in the IRAC and MIPS bands.

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