The 2002 Outburst of the Millisecond Accreting Pulsar XTE J1751-305

Details The 2002 Outburst of the Millisecond Accreting Pulsar XTE J1751-305 The 2002 Outburst of the Millisecond Accreting Pulsar XTE J1751-305

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.5411m&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #54.11; Bulletin of the American Astronomical Society, Vol. 34, p.1200

Astronomy and Astrophysics

Astronomy

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Scientific paper

The millisecond accreting pulsar XTE J1751--305 was discovered in the galactic bulge region by the RXTE PCA in early 2002. It is one of only a handful of now-known millisecond pulsars that are presumably spinning up by mass accretion (along with SAX J1808.4--3658 and XTE J0929--314). We will present an analysis of the complete outburst of XTE J1751--305, including spectroscopy and timing. The outburst followed a similar track to the first known millisecond accreting pulsar, SAX J1808.4--3658, with a fast rise, exponential decay (time constant ~ 7 day), and a sudden cut-off. Over the outburst, the energy spectral shape remained essentially constant, and showed no strong line features. Aside from the pulsations, XTE J1751--305 also exhibited lower frequency fluctuations in the power spectrum, which are typical of low mass X-ray binaries. While there appears to be no strong kiloHertz quasiperiodic oscillations, there is some evidence for a weak and broad power spectral excess feature centered on a few hundred Hertz.

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