Redshifts of Three BL Lacertae Objects: PKS 0118-27, PKS 0829+04, and MC 1057+10
Abstract
We present optical spectroscopy of three BL Lacertae objects which allows to derive the previously unknown redshift of the objects. For PKS 0118 - 27 an absorption doublet of Mg II at z = 0.559 is found. For PKS 0829 + 04 spectral signature of stellar population is detected at z = 0.18. Spectra of MC 1057 + 10 show broad emission lines which, identified with Mg II 2800 and C III] 1909, yield z = 1.317.
- Publication:
-
The Astronomical Journal
- Pub Date:
- December 1991
- DOI:
- Bibcode:
- 1991AJ....102.1991F
- Keywords:
-
- Bl Lacertae Objects;
- Red Shift;
- Star Distribution;
- Absorption Spectra;
- Emission Spectra;
- Line Spectra;
- Optical Emission Spectroscopy;
- Astrophysics;
- BL LACERTAE OBJECTS;
- NUMERICAL METHODS