Location of unidentified weak X-ray sources by the HEAO-1 scanning modulation collimator
Abstract
Four weak sources for which precise positions have been obtained from the HEAO-1 Scanning Modulation Collimator (MC) experiment are discussed. One source (4U 0446+44) with the center of the cluster of galaxies containing 3C129 and 3C129.1 has been identified, and its angular size has been measured. One source with a galactic star is identified, although it is at galactic latitude b = 51 deg. The other two sources, 2A 0526-328 and 2A 0922-317, remain unidentified.
- Publication:
-
COSPAR, 21st Plenary Meeting
- Pub Date:
- May 1978
- Bibcode:
- 1978cosp.meetQ....S
- Keywords:
-
- Collimators;
- Satellite-Borne Instruments;
- X Ray Sources;
- Angular Correlation;
- Black Holes (Astronomy);
- Brightness Temperature;
- Galactic Clusters;
- Galactic Nuclei;
- Galactic Radio Waves;
- Graphs (Charts);
- Neutron Stars;
- Astronomy