Galactic emission at 19 GHz
Abstract
We cross-correlate a 19 GHz full sky Cosmic Microwave Background (CMB) survey with other maps to quantify the foreground contribution. Correlations are detected with the Diffuse Infrared Background Experiment (DIRBE) 240, 140 and 100 micron maps at high latitudes (|b|>30degrees), and marginal correlations are detected with the Haslam 408 MHz and the Reich & Reich 1420 MHz synchrotron maps. The former agree well with extrapolations from higher frequencies probed by the COBE DMR and Saskatoon experiments and are consistent with both free-free and rotating dust grain emission.
Cite
@article{arxiv.astro-ph/9807329,
title = {Galactic emission at 19 GHz},
author = {Angelica de Oliveira-Costa and Max Tegmark and Lyman Page and Steven Boughn},
journal= {arXiv preprint arXiv:astro-ph/9807329},
year = {2009}
}
Comments
4 pages, with 4 figures included. Accepted for publication in ApJL. Color figure and links at http://www.sns.ias.edu/~angelica/foreground.html#19 or from angelica@ias.edu