Optical Spectroscopy of Bright Fermi LAT Blazars
Abstract
We report on Hobby-Eberly Telescope and Palomar 5 m spectroscopy of recently identified γ-ray blazars in the Fermi LAT Bright Source List. These data provide identifications for 10 newly discovered γ-ray flat spectrum radio quasars and six new BL Lacertae (BL Lac) objects plus improved spectroscopy for six additional BL Lac objects. We substantially improve the identification completeness of the bright LAT blazars and give new redshifts and z constraints, new estimates of the black hole masses, and new measurements of the optical spectral energy distribution.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 2009
- DOI:
- arXiv:
- arXiv:0908.2996
- Bibcode:
- 2009ApJ...704..477S
- Keywords:
-
- BL Lacertae objects: general;
- galaxies: active;
- quasars: general;
- surveys;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 8 pages, 5 figures, 2 tables. Accepted for publication in ApJ
