VLBI observations of 416 extragalactic radio sources

Details VLBI observations of 416 extragalactic radio sources VLBI observations of 416 extragalactic radio sources

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....91.1038m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 91, May 1986, p. 1038-1050. NASA-supported research.

Astronomy and Astrophysics

Astronomy

48

Astronomical Spectroscopy, Extragalactic Radio Sources, Very Long Base Interferometry, Data Reduction, Radiant Flux Density, Spectrum Analysis, Tables (Data)

Scientific paper

Very long baseline interferometry (VLBI) observations of 416 radio sources with declinations north of -45 deg have been conducted at frequencies of 2.3 and 8.4 GHz. At 2.3 GHz, 323 of 391 radio sources observed were detected with a fringe spacing of 3 milliarcsec and a detection limit of about 0.1 Jy. At 8.4 GHz, 278 of 416 radio sources were detected with a fringe spacing of 1 milliarcsec and a detection limit of about 0.1 Jy. This survey was conducted primarily to determine the strength of compact components at 8.4 GHz for radio sources previously detected with VLBI at 2.3 GHz. Compact extragalactic radio sources with strong correlated flux densities at both frequencies are used to form a high-accuracy reference frame.

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