The VLA Low-frequency Sky Survey (VLSS)

Details The VLA Low-frequency Sky Survey (VLSS) The VLA Low-frequency Sky Survey (VLSS)

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.5709k&link_type=abstract

American Astronomical Society Meeting 203, #57.09; Bulletin of the American Astronomical Society, Vol. 35, p.1301

Astronomy and Astrophysics

Astronomy

Scientific paper

We present information on the ongoing VLA Low-frequency Sky Survey(VLSS, formerly known as 4MASS). The VLSS will map an area of 9.1 sr covering the entire sky above a declination of -30 degrees, at a frequency of 74 MHz or 4 meter wavelength, with an unprecedented combination of sensitivity and resolution at this low frequency. The observational challenges at this wavelength include radio frequency interference (RFI), ionospheric phase distortions, and a large field of view filled with sources. These challenges have been surmounted by a variety of new algorithms. The principle data products from the survey will be a set of publicly available images and a catalog of approximately 9 X 104 sources. From the catalog, statistically useful samples of extra-galactic and Galactic objects, such as high redshift radio galaxies, galaxy clusters and supernova remnants, can be assembled for further study. The observations will be roughly 50% complete by January 2004. Data products and more information are available on our website (URL:http://lofar.nrl.navy.mil/VLSS/).

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