X-ray bursts from MXB 1837+05.
Abstract
Results are reported for SAS 3 observations of 22 bursts from the X-ray source designated MXB 1837+05. Assuming that all the bursts come from one source, the source position is determined to be right ascension (1950) 18 hr 37.9 min, declination (1950) 5 deg 4.2 min. Integrated burst intensities are listed along with ratios of counts in different energy channels, and it is found that there are significant variations in these ratios from burst to burst. The bursts are also shown to exhibit a variety of temporal structures (including double peaks) and changes in spectral hardness. No regularity was detected in the burst occurrence times during one observing period, but four bursts during another period seemed to recur at regular intervals of about 6.3 hr. It is concluded that an intensity-interval correlation similar to that for a rapid burster does not exist for MXB 1837+05 and that this source is probably identical with the relatively strong and steady source Ser X.1.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1977
- DOI:
- 10.1093/mnras/179.1.21P
- Bibcode:
- 1977MNRAS.179P..21L
- Keywords:
-
- Sas;
- Spaceborne Astronomy;
- X Ray Astronomy;
- X Ray Sources;
- Error Analysis;
- Position (Location);
- Position Errors;
- Radiant Flux Density;
- Spectrum Analysis;
- Tables (Data);
- Time Dependence;
- Astrophysics