A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere

Details A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103.2090r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, no. 6, June 1992, p. 2090-2098.

Astronomy and Astrophysics

Astronomy

30

Extragalactic Radio Sources, Position (Location), Radio Astronomy, Reference Stars, Very Long Base Interferometry, Astrometry, Position Errors, Southern Sky

Scientific paper

Radio and optical positions are presented for southern hemisphere extragalactic sources from the Parkes 2.7 GHz survey. Sixty-one sources were observed with Mark III VLBI at 8.4 GHz between Tidbinbilla, Australia, and Hartebeesthoek, South Africa. The results presented are part of the effort to establish a global reference frame of 400 extragalactic radio sources. Radio positions with about 10 milliarcsec errors have been estimated for 39 sources not previously in the present radio reference frame catalog, and provisional positions were obtained for two additional sources, bringing the total number of catalog sources to 276. The principal source of error is the uncalibrated ionosphere. Of the remaining sources five were completely undetected, six were either too faint or too resolved, and nine had previous catalog positions. Optical positions on the FK5 system have also been measured for four southern sources using prime focus plates from the Anglo-Australian 4 m telescope with an accuracy of 0.06 arcsec. This raises to 40 the number of radio sources with accurately measured positions for their optical counterparts.

Affiliated with

Also associated with

No associations

Rating

A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A radio optical reference frame. III - Additional radio and optical positions in the Southern Hemisphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1199442