A spectroscopic follow-up of SWIRE sources from the Lockman Validation Field has allowed the determination of the SWIRE 24 micron Luminosity Function (LF). The spectroscopic sample was chosen above a 24 micron flux limit at 260 microJy and an r-band optical limit of r<21. A spectroscopic completeness of 82.5% was achieved. We found the median redshift for the sample to be z_med=0.29. Markov-Chain Monte-Carlo (MCMC) and Maximum Likelihood Estimator (MLE) techniques were employed to fit a parametric LF. Our result of the local LF (LLF) is consistent with the local 25 micron determination from Shupe et al. 1998. We split the sample at a redshift of z_split=0.36 and find strong evidence for galaxy evolution.
@article{arxiv.astro-ph/0503444,
title = {The 24 micron Luminosity Function of spectroscopic SWIRE sources from the Lockman validation field},
author = {N. Onyett and S. Oliver and G. Morrison and F. Owen and F. Pozzi and D. Carson and SWIRE team},
journal= {arXiv preprint arXiv:astro-ph/0503444},
year = {2007}
}