Possible X-Ray Emission from a New Southern QSO HE 1029-1401
Abstract
HE 1029-1401 (z = 0.086) is a recently discovered southern bright quasar (V = 13.86; M_V = -25.1), and is one of the most luminous QSOs with a low redshift (z < 0.1) in the optical and UV wavelengths. We report here on possible X-ray detection from HE 1029-1401 by the Ginga satellite. This new QSO is found in the error regions of an X-ray source observed with the HEAO-1 and Ginga satellite. The X-ray spectrum shows a flat power-law (alpha_E ~ 0.5) in the high-energy band, and excess emission in soft X-rays, which have been often observed in many QSOs. From the X-ray light curve, we find a flux variation on a time scale with an order of half a day. This time variability is fairly rapid, compared to known AGNs with a similar X-ray luminosity.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- April 1993
- Bibcode:
- 1993PASJ...45L...7I
- Keywords:
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- Emission Spectra;
- Light Curve;
- Quasars;
- Satellite Observation;
- X Ray Sources;
- Ginga Satellite;
- Power Series;
- X Ray Spectra;
- Astrophysics;
- GALAXIES: INDIVIDUAL (HE 1029-1401);
- QUASARS;
- X-RAYS: SOURCES