Foreground contamination around the North Celestial Pole

Angelica de Oliveira-Costa; A. Kogut; Mark J. Devlin; C. Barth Netterfield; Lyman A. Page; Edward J. Wollack

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arXiv · astro-ph/9705090

Foreground contamination around the North Celestial Pole

Angelica de Oliveira-Costa·A. Kogut·Mark J. Devlin·C. Barth Netterfield·Lyman A. Page·Edward J. Wollack

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Abstract

We cross-correlate the Saskatoon Q-Band data with different spatial template maps to quantify possible foreground contamination. We detect a correlation with the Diffuse Infrared Background Experiment (DIRBE) 100 microm map, which we interpret as being due to Galactic free-free emission. Subtracting this foreground power reduces the Saskatoon normalization of the Cosmic Microwave Background (CMB) power spectrum by roughly 2%.

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Angelica de Oliveira-Costa, A. Kogut, Mark J. Devlin, C. Barth Netterfield, Lyman A. Page, Edward J. Wollack. 1997-05-12. Foreground contamination around the North Celestial Pole. https://arxiv.org/abs/astro-ph/9705090

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