Bursting Pulsar
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Sagittarius[1] |
| Right ascension | 17h 44m 33.1s[2] |
| Declination | −28° 44′ 29″[2] |
| Details | |
| Rotation | 2.141 second−1 |
| Other designations | |
| 2EG J1746-2852, 3EG J1746-2851, INTREF 820, AX J1744.5-2844 | |
| Database references | |
| SIMBAD | data |
The Bursting Pulsar (GRO J1744-28) is a low-mass x-ray binary with a period of 11.8 days. It was discovered in December 1995 by the Burst and Transient Source Experiment on the Compton Gamma-Ray Observatory, the second of the NASA Great Observatories. The pulsar is unique in that it has a "bursting phase" where it emits gamma rays and X-rays peaking at approximately 20 bursts per hour after which the frequency of bursts drops off and the pulsar enters a quiescent phase. After a few months, the bursts reappear, though not yet with predictable regularity.[3]
The Bursting Pulsar is the only known X-ray pulsar that is also a Type II X-ray burster.[2]
References
[edit]- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 3 Daigne, F.; Goldoni, P.; Ferrando, P.; Goldwurm, A.; Decourchelle, A.; Warwick, R. S. (2002). "XMM-Newton observation of the bursting pulsar GRO J1744-28 in quiescence". Astronomy & Astrophysics. 386 (2): 531–534. arXiv:astro-ph/0202209. Bibcode:2002A&A...386..531D. doi:10.1051/0004-6361:20020223.
- ↑ "The Bursting Pulsar".
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