Bursting Pulsar

Bursting Pulsar

Observation data Epoch J2000      Equinox J2000
Constellation	Sagittarius
Right ascension	17h 44m 33.1s
Declination	-28° 44' 19"'
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.[1]

The Bursting Pulsar is the only known X-ray pulsar that is also a Type II X-ray burster.[2]

References

1. "The Bursting Pulsar".
2. F. Daigne1, P. Goldoni, P. Ferrando1, A. Goldwurm, A. Decourchelle and R. S. Warwick, XMM-Newton observation of the bursting pulsar GRO J1744-28 in quiescence Astronomy & Astrophysics, Volume 386, Number 2, May I 2002 Page 531 - 534 DOI 10.1051/0004-6361:20020223