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The long-term evolution of the spin, pulse shape, and orbit of the accretion-powered millisecond pulsar SAX J1808.4-3658
Jacob M. Hartman, Alessandro Patruno, Deepto Chakrabarty +6
We present a 7 yr timing study of the 2.5 ms X-ray pulsar SAX J1808.4-3658, an X-ray transient with a recurrence time of ~2 yr, using data from the Rossi X-ray Timing Explorer cove…
Intermittent pulsations in an accretion-powered millisecond pulsar
Duncan K. Galloway, Edward H. Morgan, Miriam I. Krauss +2
We describe observations of the seventh accretion-powered millisecond pulsar, HETE J1900.1-2455 made with the Rossi X-ray Timing Explorer during the year of activity that followed…
Discovery of pulsations in the X-ray transient 4U 1901+03
Duncan K. Galloway, Zhongxiang Wang, Edward H. Morgan
We describe observations of the 2003 outburst of the hard-spectrum X-ray transient 4U 1901+03 with the Rossi X-ray Timing Explorer. The outburst was first detected in 2003 February…
Global Characteristics of X-Ray Flashes and X-Ray-Rich GRBs Observed by HETE-2
T. Sakamoto, D. Q. Lamb, C. Graziani +35
We describe and discuss the global properties of 45 gamma-ray bursts (GRBs) observed by HETE-2 during the first three years of its mission, focusing on the properties of X-Ray Flas…
A Frequency Glitch in an Accreting Pulsar
D. K. Galloway, E. H. Morgan, A. M. Levine
Frequency glitches have been observed so far only in radio pulsars and anomalous X-ray pulsars. Here we present evidence of a glitch in a neutron star accreting from a Be companion…
GRB010921: Localization and Observations by the HETE Satellite
G. Ricker, K. Hurley, D. Lamb +36
On September 21 at 18950.56 SOD (05:15:50.56) UT the FREGATE gamma-ray instrument on the High Energy Transient Explorer (HETE) detected a bright gamma-ray burst (GRB). The burst wa…