First results of a spectroscopic search for gravitational mirages

Details First results of a spectroscopic search for gravitational mirages First results of a spectroscopic search for gravitational mirages

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...177..337r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 177, no. 1-2, May 1987, p. 337-341.

Astronomy and Astrophysics

Astrophysics

5

Astronomical Spectroscopy, Blue Stars, Gravitational Lenses, Active Galaxies, Doppler Effect, Extragalactic Radio Sources, Galactic Nuclei, H Ii Regions, Quasars, White Dwarf Stars

Scientific paper

The first results of a systematic search for gravitational mirages among close pairs of blue objects are presented and some representative cases are discussed. The spectroscopic study of 15 candidates did not yield new gravitational mirages but revealed about 40 percent of the extragalactic physical systems including a large proportion of quasars, active galaxies, and H II regions.

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