Published August 5, 2010
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Atmospheric phase correction using the CARMA paired antennas calibration system
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.
Additional Information
© 2010 SPIE. Support for CARMA construction was derived from the Gordon and Betty Moore Foundation, the Kenneth T. and Eileen L. Norris Foundation, the James S. McDonnell Foundation, the Associates of the California Institute of Technology, the University of Chicago, the states of California, Illinois, and Maryland, and the National Science Foundation. Ongoing CARMA development and operations are supported by the National Science Foundation under a cooperative agreement, and by the CARMA partner universities. LMP acknowledges support for graduate studies through a Fulbright-CONICYT scholarship.Attached Files
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Additional details
- Eprint ID
- 22900
- Resolver ID
- CaltechAUTHORS:20110315-112752485
- Gordon and Betty Moore Foundation
- Kenneth T. and Eileen L. Norris Foundation
- James S. McDonnell Foundation
- Caltech Associates
- University of Chicago
- State of California
- State of Illinois
- State of Maryland
- NSF
- CARMA partner universities
- Fulbright Foundation
- Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)
- Created
-
2011-03-16Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 7733