Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538703p&link_type=abstract
American Astronomical Society, AAS Meeting #215, #387.03; Bulletin of the American Astronomical Society, Vol. 42, p.602
Astronomy and Astrophysics
Astronomy
Scientific paper
The Expanded Very Large Array project is a major upgrade of the Very Large Array. The overall goal of the project is to provide order-of-magnitude improvement in all observational capabilities of the Very Large Array, except spatial resolution. Key capabilities include complete frequency coverage from 1 to 50 GHz, and a new, flexible correlator which will provide a minimum of 16384 spectral channels and full polarization over 8 GHz instantaneous bandwidth.
Progress towards project completion in 2012 is very good. Conversion of all 28 antennas to EVLA status will be completed by mid-2010. Shared-risk science observing with the new 'WIDAR' correlator will begin in early 2010, while installation of the eight cryogenically cooled wide-band receiver systems continues towards completion by the end of 2012.
The rapid increase in observational capabilities enabled by the wide-band receiver systems and the continuing implementation of the new correlator will be summarized. The initial shared-risk 'OSRO' and 'RSRO' observing programs will be described, and a look ahead to the capabilities of the final system will be offered.
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