Mapping the cosmic microwave background anisotropy: The first flight of the QMAP experiment

Mark J. Devlin, Angelica De Oliveira-Costa, Tom Herbig, Amber D. Miller, C. Barth Netterfield, Lyman A. Page, Max Tegmark

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We report on the first flight of the balloon-borne QMAP experiment. The experiment is designed to make a map of the cosmic microwave background (CMB) anisotropy on angular scales from 0°.70 to several degrees. Using the map, we determine the angular power spectrum of the anisotropy in multipole bands from l ∼ 40 to l ∼ 140. The results are consistent with the SK (from Saskatoon, Saskatchewan, Canada) measurements. The frequency spectral index (measured at low l) is consistent with that of CMB and inconsistent with either Galactic synchrotron or free-free emission. The instrument, measurement, analysis of the angular power spectrum, and possible systematic errors are discussed.

Original languageEnglish (US)
Pages (from-to)L69-L72
JournalAstrophysical Journal
Volume509
Issue number2 PART 2
DOIs
StatePublished - Dec 20 1998

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmic microwave background
  • Cosmology: Observations

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