Optical spectroscopy of 1 Jy BL Lacertae objects and flat spectrum radio sources

Details Optical spectroscopy of 1 Jy BL Lacertae objects and flat spectrum radio sources Optical spectroscopy of 1 Jy BL Lacertae objects and flat spectrum radio sources

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26as...80..103s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 80, no. 1, Oct. 1989, p. 103-114.

Astronomy and Astrophysics

Astronomy

95

Active Galaxies, Bl Lacertae Objects, Optical Emission Spectroscopy, Quasars, Red Shift, Absorption Spectra, Emission Spectra, Extragalactic Radio Sources, Radio Astronomy

Scientific paper

Optical spectroscopy is reported for a number of flat spectrum radio sources, most of which are either classified as BL Lacertae objects or have been described as BL Lac candidates. A total of ten new redshifts are presented. The suggested redshifts for three objects are confirmed and spectroscopic data are given for eight additional objects with already known redshifts. A variety of emission features and emission line strengths is found reaching from strong lines characteristic for high redshift quasars to very weak lines typical for classical BL Lac objects.

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