New identifications of bright X-ray sources with the HEAO-1 Scanning Modulation Collimator
Abstract
Based on data obtained with the HEAO-1 Scanning Modulation Collimator (MC) experiment, candidate Be star systems and BL Lac objects are reported. Identification of the V = 6.6 star HD91188 as a Be star is confirmed, and X-ray luminosities ranging from 9 x 10 to the 32nd to 1.4 x 10 to the 34th ergs/s are derived. A B2 spectral type with a reddening E(B - V) = 0.42 is deduced for a V = 9.87 star which appears in an MC location diamond for the source 1H0550 + 286. A V = 16.5 ultraviolet excess object in the location 2A1058 - 226 = 3A1057 - 224 = 4U1057 - 21 = H1100 - 230 gave a 20 cm flux of 83 mJy, and a V = 16.2 ultraviolet excess object at 3A1422 + 425 = 1H143 + 423 was found to have a 20 cm flux of 33 mJy, suggesting their classification as BL Lac objects.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- 1985
- Bibcode:
- 1985STIA...8649629S
- Keywords:
-
- B Stars;
- Bl Lacertae Objects;
- Heao 1;
- Satellite-Borne Instruments;
- X Ray Stars;
- Collimators;
- Spaceborne Astronomy;
- X Ray Spectra;
- Astronomy