EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR

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	EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR
	Ge, M. Y.1; Yan, L. L.1; Lu, F. J.1; Zheng, S. J.1; Yuan, J. P.2 ; Tong, H.2 ; Zhang, S. N.1; Lu, Y.1
刊名	ASTROPHYSICAL JOURNAL
	2016-02-10
通讯作者邮箱	gemy@mail.ihep.ac.cn
卷号	818 期号:1 页码:48
关键词	pulsars: individual (PSR B0531+21) stars: neutron X-rays: stars
ISSN号	0004-637X
通讯作者	Ge, M. Y.
英文摘要	Using the archival data from the Rossi X-ray Timing Explorer, we study the evolution of the Crab pulsar's X-ray profile in a time span of 11 years. The X-ray profiles, as characterized by a few parameters, changed slightly, but with high statistical significance in these years: the separation of the two peaks increased with a rate of 0 degrees.88 +/- 0 degrees.20 per century, the flux ratio of the second pulse to the first pulse decreased by (3.64 +/- 0.86) x 10(-2) per century, and the pulse widths of the two pulses represented by their full widths at half maxima decreased by 1 degrees.44 +/- 0 degrees.15 and 1 degrees.09 +/- 0 degrees.73 per century, respectively. The evolutionary trends of the X-ray profile are similar to that observed in radio, but with quantitative differences. Finally, we briefly discuss the constraints of these X-ray properties on the geometry of the emission region of this pulsar.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	PHASE-RESOLVED SPECTROSCOPY ; RAPIDLY SPINNING PULSARS ; TIMING-EXPLORER ; ENERGETIC RADIATION ; GAMMA-RAYS ; B1509-58 ; EMISSION ; B0531+21 ; SPECTRA ; RXTE
收录类别	SCI
语种	英语
WOS记录号	WOS:000370370800048
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/1385]
专题	脉冲星研究团组新疆天文台_射电天文研究室
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Ge, M. Y.,Yan, L. L.,Lu, F. J.,et al. EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR[J]. ASTROPHYSICAL JOURNAL,2016,818(1):48.
APA	Ge, M. Y..,Yan, L. L..,Lu, F. J..,Zheng, S. J..,Yuan, J. P..,...&Lu, Y..(2016).EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR.ASTROPHYSICAL JOURNAL,818(1),48.
MLA	Ge, M. Y.,et al."EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR".ASTROPHYSICAL JOURNAL 818.1(2016):48.