Galactic emission at 19 GHz

Angélica De Oliveira-Costa, Max Tegmark, Lyman A. Page, Stephen P. Boughn

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Abstract

We cross-correlate a 19 GHz full sky cosmic microwave background survey with other maps to quantify the foreground contribution. Correlations are detected with the DIRBE 240, 140, and 100 μm maps at high latitudes (|b|> 30°), 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 Differential Microwave Radiometer and Saskatoon experiments and are consistent with both free-free and rotating dust grain emission.

Original languageEnglish (US)
Pages (from-to)L9-L12
JournalAstrophysical Journal Letters
Volume509
Issue number1
DOIs
StatePublished - 1998

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmic microwave background
  • Methods: data analysis

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    Oliveira-Costa, A. D., Tegmark, M., Page, L. A., & Boughn, S. P. (1998). Galactic emission at 19 GHz. Astrophysical Journal Letters, 509(1), L9-L12. https://doi.org/10.1086/311754/meta