VLBI observations of the double QSO, 0957 + 561 A, B

Details VLBI observations of the double QSO, 0957 + 561 A, B VLBI observations of the double QSO, 0957 + 561 A, B

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.282..385p&link_type=abstract

Nature, vol. 282, Nov. 22, 1979, p. 385, 386.

Astronomy and Astrophysics

Astronomy

26

Binary Stars, Gravitational Lenses, Quasars, Very Long Base Interferometry, High Resolution, Radiant Flux Density, Radio Astronomy

Scientific paper

The double quasar 0957 + 561 A, B is observed by high-resolution very long baseline interferometry (VBLI) in order to investigate the hypothesis that the double quasar is actually two images of the same object formed by a gravitational lens. Observations were made at 1666 MHz using the European Network at Effelsberg, Dwingeloo and Jodrell Bank for a total period of five hours. Two apparently unresolved radio sources (less than approximately 20 m arcsec) with comparable flux densities (44 and 32 mJy) were detected close to the optical quasars, consistent with the gravitational lens hypothesis. An upper limit of approximately 4 m arcsec to the size of the source is estimated, assuming the presence of a gravitational lens, and higher resolution observations are suggested in order to determine the structure of the two components and provide a stronger test of the gravitational lens hypothesis.

Affiliated with

Also associated with

No associations

Rating

VLBI observations of the double QSO, 0957 + 561 A, B 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 VLBI observations of the double QSO, 0957 + 561 A, B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VLBI observations of the double QSO, 0957 + 561 A, B will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-975519