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Timing and spectral properties of the accreting millisecond pulsar SWIFT J1756.9-2508
Manuel Linares, Rudy Wijnands, Michiel van der Klis +3
SWIFT J1756.9-2508 is one of the few accreting millisecond pulsars (AMPs) discovered to date. We report here the results of our analysis of its aperiodic X-ray variability, as meas…
Lost and Found: A New Position and Infrared Counterpart for the X-ray Binary Scutum X-1
D. L. Kaplan, A. M. Levine, D. Chakrabarty +5
Using archival X-ray data, we find that the catalog location of the X-ray binary Scutum X-1 (Sct X-1) is incorrect, and that the correct location is that of the X-ray source AX J18…
A Search for Fallback Disks in Four Young Supernova Remnants
Zhongxiang Wang, David L. Kaplan, Deepto Chakrabarty
We report on our search for the optical/infrared counterparts to the central compact objects in four young supernova remnants: Pup A, PKS 1209-52, RCW 103, and Cas A. The X-ray poi…
Discovery of a High-Latitude Accreting Millisecond Pulsar in an Ultracompact Binary
Duncan Galloway, Deepto Chakrabarty, Edward Morgan +1
We have identified the third known accretion-powered millisecond pulsar, XTE J0929-314, with the Rossi X-Ray Timing Explorer. The source is a faint, high-Galactic-latitude X-ray tr…
Chandra/HETGS Spectroscopy of the Anomalous X-ray Pulsar 4U 0142+61
Adrienne M. Juett, Herman L. Marshall, Deepto Chakrabarty +2
We report on a 25 ks observation of the anomalous X-ray pulsar 4U 0142+61 with the High Energy Transmission Grating Spectrometer (HETGS) on the Chandra X-ray Observatory. The conti…
The Optical Counterpart of the Accreting Millisecond Pulsar SAX J1808.4-3658 in Outburst: Constraints on the Binary Inclination
Zhongxiang Wang, Deepto Chakrabarty, Paul Roche +6
We present multiband optical/infrared photometry of V4580 Sgr, the optical counterpart of the accretion-powered millisecond pulsar SAX J1808.4-3658, taken during the 1998 X-ray out…
On the Dramatic Spin-up/Spin-down Torque Reversals in Accreting Pulsars
Robert W. Nelson, Lars Bildsten, Deepto Chakrabarty +7
Dramatic torque reversals between spin up and spin down have been observed in half of the persistent X-ray pulsars monitored by the BATSE all-sky monitor on CGRO. Theoretical model…
Observations of Accreting Pulsars
Lars Bildsten, Deepto Chakrabarty, John Chiu +10
We summarize five years of continuous monitoring of accretion-powered pulsars with the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory. Our 20-70…