Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 134, Issue 1041, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1538-3873/ac9642
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Funding
- CASA project
- ERC Synergy Grant BlackHole Cam: Imaging the Event Horizon of Black Holes [610058]
- Inter-University Institute for Data Intensive Astronomy (IDIA)
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CASA is the primary data processing software for ALMA and VLA, and it can handle data from single-dish, aperture-synthesis, and VLBI telescopes. This paper provides an overview of the basic structure of CASA and the procedures for calibrating and imaging astronomical radio data in CASA.
CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA), and is frequently used also for other radio telescopes. The CASA software can handle data from single-dish, aperture-synthesis, and Very Long Baseline Interferometery (VLBI) telescopes. One of its core functionalities is to support the calibration and imaging pipelines for ALMA, VLA, VLA Sky Survey, and the Nobeyama 45 m telescope. This paper presents a high-level overview of the basic structure of the CASA software, as well as procedures for calibrating and imaging astronomical radio data in CASA. CASA is being developed by an international consortium of scientists and software engineers based at the National Radio Astronomy Observatory (NRAO), the European Southern Observatory, the National Astronomical Observatory of Japan, and the Joint Institute for VLBI European Research Infrastructure Consortium (JIV-ERIC), under the guidance of NRAO.
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