Spectroscopy of QSO pairs

Details Spectroscopy of QSO pairs Spectroscopy of QSO pairs

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210l...1b&link_type=abstract

Astrophysical Journal, vol. 210, Nov. 15, 1976, pt. 2, p. L1-L3.

Astronomy and Astrophysics

Astronomy

27

Astronomical Spectroscopy, Quasars, Radio Sources (Astronomy), Red Shift, Radio Astronomy, Statistical Distributions, Ultraviolet Spectroscopy

Scientific paper

We report spectroscopic observations of objects with ultraviolet excess found within 2 arcminutes of radio-detected QSOs. Of six such objects, four are definitely QSOs, and another is very probably a QSO. In the three cases where redshifts have been measured for both members of a pair, they are not the same. The probability of the pairing occurring by chance, given a random distribution of QSOs over the sky, is 0.001, based on current estimates of the surface density of QSOs near 19 mag.

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