Bursting Pulsar
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 17h 44m 33.1s |
| Declination | −28° 44′ 29″ |
| 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.
The Bursting Pulsar is the only known X-ray pulsar that is also a Type II X-ray burster.