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DASI: The Degree Angular Scale Interferometer

Published online by Cambridge University Press:  26 May 2016

E. M. Leitch ,
J. E. Carlstrom ,
G. Davidson ,
M. Dragovan ,
N. W. Halverson ,
W. L. Holzapfel ,
S. Laroque ,
J. Kovac ,
C. Pryke  and
E. Schartman
...Show all authors
E. M. Leitch
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
J. E. Carlstrom
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
G. Davidson
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
M. Dragovan
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
N. W. Halverson
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
W. L. Holzapfel
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
S. Laroque
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
J. Kovac
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
C. Pryke
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
E. Schartman
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
M. J. Yamasaki
Affiliation:
University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA

Abstract

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We describe the design and current status of the Degree Angular Scale Interferometer (DASI), a compact cm-wave interferometer operating at the Amundsen-Scott South Pole research station. With 20-cm diameter primary antenna elements operating over the frequency range 26 − 36 GHz, DASI is optimized to measure the power spectrum of the cosmic microwave background radiation (CMBR) over the multipole range 140 − 920, (corresponding to scales of 25′ − 2°.6), as well as make high-sensitivity maps of the microwave sky. The telescope was built at the University of Chicago and deployed at the South Pole during the 1999-2000 austral summer.

Type
Part II: Primordial CMB Observations: Ground based
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 33 - 42
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

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