NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T16:27:40 PDT
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For refcode 1994ApJS...93..145K:
Retrieve 2435 NED objects in this reference.
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1994ApJS...93..145K A SENSITIVE 1.5 GHz RADIO SURVEY AROUND THE NORTH ECLIPTIC POLE RONALD I. KOLLGAARD, WOLFGANG BRINKMANN, MARGARET MCMATH CHESTER, ERIC D. FEIGELSON, PAUL HERTZ, PATRICIA REICH, AND RICHARD WIELEBINSKI Received 1993 August 9; accepted 1993 November 12 ABSTRACT A 29.3 deg^2^ region surrounding the north ecliptic pole (NEP; {alpha} = 18^h^00^m^, {delta} = +66^deg^30') was mapped with the Very Large Array at 1.5 GHz to support the deepest portion of the ROSAT all-sky soft X-ray survey. The resulting VLA-NEP survey catalog contains 2435 radio sources with flux densities in the range of 0.3- 1000 mJy, including over 200 fainter than 1 mJy. The 28 fields of the inner 1.5^deg^ have noise levels {sigma} ~ 60 microJy, and the 85 fields centered between 1.5^deg^ and 3.0^deg^ from the NEP have {sigma} ~ 120 microJy. The typical spatial resolution is 20" HPBW, and most positions are accurate to < 2". Approximately 6% of the sources are found to be extended with size > 30". We have compared the VLA-NEP catalog with four other radio catalogs made at lower resolution, as well as with the NASA Extragalactic Database and find counterparts for ~18% of the VLA-NEP objects. The normalized, differential radio source count is in agreement with previous studies. Between 1 and 150 mJy the slope of the log N- log S relation is 0.68 +/- 0.03. The catalog and related tables are available electronically. Subject headings: catalogs - radio continuum: general - surveys - X-rays: general
Retrieve 2435 NED objects in this reference.
Please click here for ADS abstract

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