Galactic emission at 19 GHz

Details Galactic emission at 19 GHz Galactic emission at 19 GHz

1998-07-31

arxiv.org/abs/astro-ph/9807329v3

ApJL, 509, L9-12 (1998)

Astronomy and Astrophysics

Astrophysics

4 pages, with 4 figures included. Accepted for publication in ApJL. Color figure and links at http://www.sns.ias.edu/~angelica

Scientific paper

10.1086/311754

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.

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