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X-RAY PHASE-RESOLVED SPECTROSCOPY OF PSRs B0531+21, B1509-58, AND B0540-69 WITH RXTE
Ge MY(葛明玉); Lu FJ(卢方军); Qu JL(屈进禄); Ge, MY; Lu, FJ; Qu, JL; Zheng, SJ; Chen, Y; Han, DW;; Zheng SJ(郑世界); Chen Y(陈勇); Han DW(韩大炜)
2012
发表期刊ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES ; ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷号199期号:2页码:32
摘要

The Rossi X-Ray Timing Explorer (RXTE) has made hundreds of observations on three famous young pulsars (PSRs) B0531+21 (Crab), B1509-58, and B0540-69. Using the archive RXTE data, we have studied the phase-resolved spectral properties of these pulsars in details. The variation of the X-ray spectrum with phase of PSR B0531+21 is confirmed here much more precisely and more details are revealed than in the previous studies: The spectrum softens from the beginning of the first pulse, turns to harden right at the pulse peak and becomes the hardest at the bottom of the bridge, softens gradually until the second peak, and then softens rapidly. Different from the previous studies, we found that the spectrum of PSR B1509-58 is significantly harder in the center of the pulse, which is also in contrast to that of PSR B0531+21. The variation of the X-ray spectrum of PSR B0540-69 seems similar to that of PSR B1509-58, but with a lower significance. Using about 10 years of data span, we also studied the real time evolution of the spectra of these pulsars, and no significant evolution has been detected. We discuss the constraints of these results on theoretical models of pulsar X-ray emission.

关键词Pulsars: Individual (Psr b0531+21, Psr B1509-58, Psr B0540-69) Stars: Neutron X-rays: Stars
学科领域Astronomy & Astrophysics
DOI10.1088/0067-0049/199/2/32
收录类别SCI
语种英语
WOS记录号WOS:000303105400008
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224392
专题粒子天体物理中心
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GB/T 7714
Ge MY,Lu FJ,Qu JL,et al. X-RAY PHASE-RESOLVED SPECTROSCOPY OF PSRs B0531+21, B1509-58, AND B0540-69 WITH RXTE[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2012,199(2):32.
APA Ge MY.,Lu FJ.,Qu JL.,Ge, MY.,Lu, FJ.,...&Han DW.(2012).X-RAY PHASE-RESOLVED SPECTROSCOPY OF PSRs B0531+21, B1509-58, AND B0540-69 WITH RXTE.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,199(2),32.
MLA Ge MY,et al."X-RAY PHASE-RESOLVED SPECTROSCOPY OF PSRs B0531+21, B1509-58, AND B0540-69 WITH RXTE".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 199.2(2012):32.
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