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Experiment design and first season observations with the degree angular scale interferometer

  • E. M. Leitch
  • , C. Pryke
  • , N. W. Halverson
  • , J. Kovac
  • , G. Davidson
  • , S. LaRoque
  • , E. Schartman
  • , J. Yamasaki
  • , J. E. Carlstrom
  • , W. L. Holzapfel
  • , M. Dragovan
  • , J. K. Cartwright
  • , B. S. Mason
  • , S. Padin
  • , T. J. Pearson
  • , A. C.S. Readhead
  • , M. C. Shepherd

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the instrumentation, experiment design, and data reduction for the first season of observations with the Degree Angular Scale Interferometer (DASI), a compact microwave interferometer designed to measure anisotropy of the cosmic microwave background (CMB) on degree and subdegree scales (l ≃ 100-900). The telescope was deployed at the Amundsen-Scott South Pole Research Station during the 1999-2000 austral summer, and we conducted observations of the CMB throughout the following austral winter. In its first season of observations, DASI has mapped CMB fluctuations in 32 fields, each 3°.4 across, with high sensitivity.

Original languageEnglish (US)
Pages (from-to)28-37
Number of pages10
JournalAstrophysical Journal
Volume568
Issue number1 I
DOIs
StatePublished - Mar 20 2002

Keywords

  • Cosmic microwave background
  • Cosmology: observations
  • Techniques: interferometric

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