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CARMA: specifications and status

Beasley, Anthony J. and Vogel, Stuart N. (2003) CARMA: specifications and status. In: Millimeter and Submillimeter Detectors for Astronomy. Proceedings of SPIE. No.4855. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 254-264. ISBN 9780819446343.

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The Combined Array for Research in Millimeter-wave Astronomy (CARMA) is a 23-antenna heterogeneous millimeter array under construction in the White/Inyo Mountains of eastern California. CARMA will merge the existing Owens Valley and Berkeley-Illinois-Maryland Association arrays into a single instrument focusing on pure research, technology development and student training. A new high-altitude site will enable routine 205-265 GHz observing, and may allow observations in the 345 GHz window. Eight additional 3.5-m antennas from the University of Chicago will also be integrated into CARMA when not imaging the Sunyaev-Zel'dovich effect towards clusters of galaxies. At first light, the array will observe at 12, 3 and 1.3 mm using a mix of SIS and MMIC-based receivers. A new, highly flexible correlator incorporating reprogrammable FPGA technology will process configurable subsets of the antennas specified according to the science objectives. Leading-edge water vapor radiometers will be used to correct for atmospheric opacity and signal phase fluctuations. CARMA will be capable of both high resolution and wide-field imaging, covering a range of angular scales unmatched by any current or planned millimeter-wave instrument. The high sensitivity, sub-arcsecond angular resolution and excellent uv-coverage of CARMA will ensure major advances in studies of the universe. The array will provide high-fidelity resolved images of solar-system objects, protostars, protoplanetary disks, and galaxies both nearby and at high redshift - directly addressing many key research areas in astronomy and astrophysics.

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Additional Information:© 2003 Society of Photo-optical Instrumentation Engineers (SPIE). This paper has been produced on behalf of the CARMA consortium, and represents the work of scientists, engineers and technicians at the University of California (Berkeley), the University of Maryland (College Park), the University of Illinois (Urbana-Champaign) and the California Institute of Technology Owens Valley Radio Observatory. The OVRO and BIMA arrays and CARMA are partially supported by National Science Foundation grants NSF-9981546, NSF AST9983108, NSF-AST9981363, NSF-AST991289 and NSF 011616558.
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Subject Keywords:Radio Astronomy; Millimeter Interferometry; Antennas; Correlator; Water Vapor Radiometry
Series Name:Proceedings of SPIE
Issue or Number:4855
Record Number:CaltechAUTHORS:20180702-160005727
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Official Citation:Anthony J. Beasley, Stuart N. Vogel, "CARMA: specifications and status", Proc. SPIE 4855, Millimeter and Submillimeter Detectors for Astronomy, (17 February 2003); doi: 10.1117/12.459357;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87535
Deposited By: Tony Diaz
Deposited On:03 Jul 2018 17:50
Last Modified:15 Nov 2021 20:49

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