The MAT/TOCO measurement of the angular power spectrum of the cosmic microwave background at 30 and 40 GHz

M. R. Nolta, M. J. Devlin, W. B. Dorwart, A. D. Miller, L. A. Page, J. Puchalla, E. Torbet, H. T. Tran

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Abstract

We present a measurement of the angular spectrum of the cosmic microwave background from l = 26 to 225 from the 30 and 40 GHz channels of the MAT/TOCO experiment based on two seasons of observations. At comparable frequencies, the data extend to a lower l than the recent Very Small Array and DASI results. After accounting for known foreground emission in a self-consistent analysis, a rise from the Sachs-Wolfe plateau to a peak of δTl ≈ 80 μK near l ≈ 200 is observed.

Original languageEnglish (US)
Pages (from-to)97-101
Number of pages5
JournalAstrophysical Journal
Volume598
Issue number1 I
DOIs
StatePublished - Nov 20 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmology: observations
  • Cösmic microwave background

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    Nolta, M. R., Devlin, M. J., Dorwart, W. B., Miller, A. D., Page, L. A., Puchalla, J., Torbet, E., & Tran, H. T. (2003). The MAT/TOCO measurement of the angular power spectrum of the cosmic microwave background at 30 and 40 GHz. Astrophysical Journal, 598(1 I), 97-101. https://doi.org/10.1086/378698