PKS 1937-101: the most extreme ROSAT Survey Quasar.
Abstract
The high redshift (z=3.787) radio loud quasar PKS 1937-101 is one of the most distant objects detected in the ROSAT All Sky Survey. A deep HRI observation confirms the physical association of the ROSAT source with the quasar and a spectral analysis indicates that the object has a very flat power law slope. With the deduced soft X-ray luminosity of L_(0.1-2.4keV)_~2.4x10^47^erg/s PKS 1937-101 is intrinsically one of the X-ray and optically brightest objects known.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1995
- Bibcode:
- 1995A&A...300L..33B
- Keywords:
-
- GALAXIES: ACTIVE;
- QUASARS;
- X-RAYS: GENERAL;
- RADIO SOURCES: GENERAL