A high-resolution gravitational lens survey

Details A high-resolution gravitational lens survey A high-resolution gravitational lens survey

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105....7y&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 1, p. 7-16.

Astronomy and Astrophysics

Astronomy

35

Gravitational Lenses, Quasars, Sky Surveys (Astronomy), Companion Stars, Dark Matter, Red Shift, Reference Stars, Seeing (Astronomy)

Scientific paper

The present search for gravitationally lensed QSOs employed a sample of 104 bright, high redshift QSOs in order to maximize the probability of lensing; each of the QSOs was examined by visual comparison of its contour plot with that of at least one reference star from the first field. No definitive new cases of lensing were discovered, and there are no secondary components down to 2 mag fainter than the primary at separations greater than 0.60 arcmin. These results are congruent with theoretical calculations of the expected distribution of separations for gravitationally lensed QSOs.

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