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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 - 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
Country/TerritoryUnited 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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