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Proceedings Article

Atmospheric phase correction using the CARMA paired antennas calibration system

[+] Author Affiliations
Laura M. Pérez, John M. Carpenter

California Institute of Technology (USA)

James W. Lamb, David P. Woody, Erik M. Leitch

Owens Valley Radio Observatory, California Institute of Technology (USA)

B. Ashley Zauderer, Alberto D. Bolatto, Lee G. Mundy, Peter J. Teuben

Univ. of Maryland, College Park (USA)

Daniel P. Marrone

Univ. of Chicago (USA)

Richard L. Plambeck, Melvyn C. H. Wright

Univ. of California, Berkeley (USA)

Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77333T (August 05, 2010); doi:10.1117/12.857408
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From Conference Volume 7733

  • Ground-based and Airborne Telescopes III
  • Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall
  • San Diego, California, USA | June 27, 2010

abstract

High angular resolution observations are essential to understand a variety of astrophysical phenomena. The resolution of millimeter wave interferometers is limited by large and rapid differential atmospheric delay fluctuations. At the Combined Array for Research in Millimeter-wave Astronomy (CARMA) we have employed a Paired Antenna Calibration System (C-PACS) for atmospheric phase compensation in the extended array configurations (up to 2 km baselines). We present a description of C-PACS and its application. We also present successful atmospheric delay corrections applied to science observations with dramatic improvements in sensitivity and angular resolution.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Laura M. Pérez ; James W. Lamb ; David P. Woody ; B. Ashley Zauderer ; John M. Carpenter, et al.
"Atmospheric phase correction using the CARMA paired antennas calibration system", Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77333T (August 05, 2010); doi:10.1117/12.857408; http://dx.doi.org/10.1117/12.857408


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