Atmospheric phase correction using the CARMA paired antennas calibration system

Laura M. Pérez, James W. Lamb, David P. Woody, B. Ashley Zauderer, John M. Carpenter, Alberto D. Bolatto, Erik M. Leitch, Daniel P. Marrone, Lee G. Mundy, Richard L. Plambeck, Peter J. Teuben, Melvyn C.H. Wright

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Telescopes III
EditionPART 1
DOIs
StatePublished - Oct 27 2010
Externally publishedYes
EventGround-Based and Airborne Telescopes III - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
NumberPART 1
Volume7733
ISSN (Print)0277-786X

Other

OtherGround-Based and Airborne Telescopes III
CountryUnited States
CitySan Diego, CA
Period6/27/107/2/10

Keywords

  • Atmospheric phase measurement and compensation
  • C-PACS
  • CARMA
  • Millimeter wavelength seeing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Pérez, L. M., Lamb, J. W., Woody, D. P., Zauderer, B. A., Carpenter, J. M., Bolatto, A. D., Leitch, E. M., Marrone, D. P., Mundy, L. G., Plambeck, R. L., Teuben, P. J., & Wright, M. C. H. (2010). Atmospheric phase correction using the CARMA paired antennas calibration system. In Ground-Based and Airborne Telescopes III (PART 1 ed.). [77333T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7733, No. PART 1). https://doi.org/10.1117/12.857408