Extragalactic radio sources optical positions (Li+ 1996)

Details Extragalactic radio sources optical positions (Li+ 1996) Extragalactic radio sources optical positions (Li+ 1996)

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat..41200201l&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/120/201. Originally published in: 1996A&AS..120..201L

Computer Science

Galaxies: Radio, Positional Data

Scientific paper

Based on 28 individual catalogues, in which the positions of optical counterparts of extragalactic radio sources are listed, we compiled a combined catalogue by means of a weighted least squares adjustment. The catalogue is in the system of FK5/J2000.0. It consists of about five hundred sources, among which there are 56 primary sources with position uncertainties as 0.09". Comparisons show that the orientation differences between optical and radio frames are A1=-0.013"+/-0.012", A2=0.077"+/-0.012", A3=0.005"+/-0.009". Local relative deformations are not obvious within the precision of ground-based optical observations. (3 data files).

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