A search for closely spaced gravitational lenses

Details A search for closely spaced gravitational lenses A search for closely spaced gravitational lenses

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.1188c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 98, Oct. 1989, p. 1188-1194.

Astronomy and Astrophysics

Astronomy

17

Astronomical Photography, Gravitational Lenses, Quasars, Astronomical Catalogs, Cameras, Charge Coupled Devices, Red Shift

Scientific paper

A new image-stabilizing camera was used to search for closely spaced images of a sample of 25 intrinsically luminous quasars with z greater than 1.6 and m smaller than 19. Observations of seven similarly selected quasars with the regular CCD camera in good seeing conditions are also reported. Of the 32 quasars, seven are gravitational lens candidates. Two of these have subarcsecond separations. Additional information on all these candidates is required.

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