Physics – Nuclear Physics
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nuphs..69..210j&link_type=abstract
Nuclear Physics B Proceedings Supplements, Volume 69, Issue 1-3, p. 210-215.
Physics
Nuclear Physics
2
Scientific paper
GRO J1744-28, discovered by BATSE in December 95, is the second neutron star system known to produce frequent accretion powered bursts. The system has been regularly monitored with the RXTE PCA since the peak of the first outburst in January 96 at which time the observed persistent and bursting count rates were ~25000ct/sec and ~150000ct/sec, with corresponding instrumental deadtimes of ~10% and >=50%. We present a model which allows the reconstruction of the true incident count rate in the presence of enormous deadtime and use the model to derive a history of the peak luminosities and fluences of the bursts as a function of time. During the peak of the January 1996 and January 1997 outbursts, when the persistent emission was >=1 Crab, we infer peak luminosities of ~100 times the Eddington luminosity, and a ratio of persistent emission to integrated burst emission of ~34.
Fox Derek
Jahoda Keith
Morgan Edward Harrington
Stark Michael James
Strohmayer Tod E.
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