NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T16:50:25 PDT
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For refcode 1994A&AS..103..349S:
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NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
1994A&AS..103..349S An update of the optical identification status of the S4 radio source catalogue M. Stickel and H. Kuhr Max-Planck-Institut fur Astronomie, Konigstuhl 17, D-69117 Heidelberg, Germany Received May 25; accepted August 20, 1993 Abstract. - An update of the optical identification status of the S4 radio source catalogue is presented. An extensive literature search has been made to gather the types of the optical counterparts, their magnitudes and redshifts. As far as possible, references to other optical catalogues are given for these data, which are often supplemented by more detailed notes on individual sources. Accurate radio positions taken from the literature are given for a large fraction of the sources. Key words: catalogues - radio continuum: general - BL Lac Objects: general - galaxies: general - quasars: general
Retrieve 270 NED objects in this reference.
Please click here for ADS abstract

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