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1997A&A...320....8B - Astronomy and Astrophysics, volume 320, 8-12 (1997/4-1)
Very close pairs of quasi-stellar objects.
BURBIDGE G., HOYLE F. and SCHNEIDER P.
Abstract (from CDS):
It is pointed out that there are now known four very close pairs of QSOs with separations <5arcsec and very different redshifts. Several estimates indicates that the probability that they are accidental configurations are small; a conservative estimate of the probability to have four such pairs by random projection yields 3.5x10–3. We conclude either that this is further evidence that QSOs have significant non-cosmological redshift components, or that the pairs must be explained by gravitational lensing.
Abstract Copyright: ∼
Journal keyword(s): quasi-stellar objects galaxies: redshifts - gravitational lensing
CDS comments: QSOs: 1009-025 =1009-0252, 1148+055 misprint for 1148+0055
Simbad objects: 7
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