Quasars and stellar objects in the Byurakan surveys

Details Quasars and stellar objects in the Byurakan surveys Quasars and stellar objects in the Byurakan surveys

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987afz....26...15e&link_type=abstract

(Astrofizika, vol. 26, Jan.-Feb. 1987, p. 15-27) Astrophysics (ISSN 0571-7132), vol. 26, no. 1, July 1987, p. 7-15. Translation.

Astronomy and Astrophysics

Astrophysics

3

Quasars, Space Observations (From Earth), Continuous Spectra, Northern Sky, Red Shift, Seyfert Galaxies

Scientific paper

The results are given of spectral observations of 19 stellar objects from the First Biurakan Sky Survey. Five quasars have been found among them. It is found that about 2 percent of the objects of the First Biurakan Sky Survey are quasi-stellar objects or powerful type 1 Seyfert galaxies. Samples of quasars from the first and second Biurakan Surveys have been constructed using all the spectral data; they are compared with samples of quasars obtained by other methods. The compared samples reveal appreciable differences. The distribution of the redshifts of the objects of the second survey corresponds most closely to the distribution for radio sources. A list of 33 objects having continuous spectra is given. They could be either DC or DB dwarfs or extragalactic objects, namely, quasars with weak lines, optical BL Lac objects, or objects of some other nature.

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