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Date and Time of the Query: 2018-12-16 T08:22:45 PST
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For refcode 2007AJ....134.1245C:
There are 68310 NED objects in this reference.
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2007AJ....134.1245C The VLA Low-Frequency Sky Survey A. S. Cohen, W. M. Lane, W. D. Cotton, N. E. Kassim, T. J. W. Lazio, R. A. Perley, J. J. Condon, and W. C. Erickson Abstract. The VLA Low-frequency Sky Survey (VLSS) has imaged 95% of the 3{pi} sr of sky north of {delta}=-30^deg^ at a frequency of 74 MHz (4 m wavelength). The resolution is 80" (FWHM) throughout, and the typical rms noise level is <{sigma}>~0.1 Jy beam^-1^. The typical point-source detection limit is 0.7 Jy beam^-1^, and so far nearly 70,000 sources have been cataloged. This survey used the 74 MHz system added to the VLA in 1998. It required new imaging algorithms to remove the large ionospheric distortions at this very low frequency throughout the entire ~11.9 deg field of view. This paper describes the observation and data reduction methods used for the VLSS and presents the survey images and source catalog. All of the calibrated images and the source catalog are available from the VLSS Web site for use by the astronomical community. Key words: Atmospheric Effects, Catalogs, Radio Continuum: General, Surveys
There are 68310 NED objects in this reference.
Please click here for ADS abstract

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