Optical spectra and redshifts of 15 flat-spectrum radio sources
Abstract
Optical spectra for 15 QSO candidates, selected from optical identifications of flat-spectrum radio sources, are presented. Six of them have obvious emission line features, which confirm them to be quasars. The largest redshift is 3.45 for PKS 0335-122. Selection effects in the search for quasars with redshifts greater than 3.5 are discussed.
- Publication:
-
Chinese Astronomy and Astrophysics
- Pub Date:
- September 1986
- DOI:
- 10.1016/0275-1062(86)90005-6
- Bibcode:
- 1986ChA&A..10..196C