Ertan, Ünal and Erkut, M. Hakan (2008) On the X-ray light curve, pulsed-radio emission, and spin frequency evolution of the transient anomalous X-ray pulsar XTE J1810-197 during its X-ray outburst. The Astrophysical journal, 673 (2). pp. 1062-1066. ISSN 0004-637X
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Official URL: http://dx.doi.org/10.1086/524679
Abstract
We show that: (i) the long-term X-ray outburst light curve of the transient AXP XTE J1810-197 can be accounted for by a fallback disk that is evolving towards quiescence through a disk instability after having been heated by a soft gamma-ray burst, (ii) the spin-frequency evolution of this source in the same period can also be explained by the disk torque acting on the magnetosphere of the neutron star, (iii) most significantly, recently observed pulsed-radio emission from this source coincides with the epoch of minimum X-ray luminosity. This is natural in terms of a fallback disk model, as the accretion power becomes so low that it is not sufficient to suppress the beamed radio emission from XTE J1810--197.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | accretion, accretion disks; pulsars : individual (AXPs); stars : neutron; X-rays : bursts |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Engineering and Natural Sciences > Basic Sciences > Physics Faculty of Engineering and Natural Sciences |
| Depositing User: | Ünal Ertan |
| Date Deposited: | 14 May 2009 17:16 |
| Last Modified: | 26 Apr 2022 08:27 |
| URI: | https://research.sabanciuniv.edu/id/eprint/11364 |
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On the X-Ray Light Curve, Pulsed-Radio Emission, and Spin Frequency Evolution of the Transient Anomalous X-Ray Pulsar Xte J1810-197 During its X-Ray Outburst. (deposited 18 Nov 2007 14:39)
- On the X-ray light curve, pulsed-radio emission, and spin frequency evolution of the transient anomalous X-ray pulsar XTE J1810-197 during its X-ray outburst. (deposited 14 May 2009 17:16) [Currently Displayed]
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