kHz quasi-periodic oscillation in island state of 4U 1608-52 as observed with RXTE/PCA

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	kHz quasi-periodic oscillation in island state of 4U 1608-52 as observed with RXTE/PCA
	Yu, W; Zhang, SN; Harmon, BA; Paciesas, WS; Robinson, CR; Grindlay, JE; Bloser, P; Barret, D; Ford, EC; Tavani, M
刊名	ASTROPHYSICAL JOURNAL
	1997
卷号	490 期号:2 页码:L153-L156
关键词	stars, individual (4U 1608-52) stars, neutron X-rays, stars
通讯作者	UNIV SPACE RES ASSOC,HUNTSVILLE,AL 35806 ; NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812 ; UNIV ALABAMA,DEPT PHYS,HUNTSVILLE,AL 35899 ; HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138 ; UPS,CNRS,CTR ETUD SPATIALE RAYONNEMENTS,F-31028 TOULOUSE 04,FRANCE ; COLUMBIA UNIV,COLUMBIA ASTROPHYS LAB,NEW YORK,NY 10027
英文摘要	We report RXTE/PCA observations of 4U 1608-52 on March 15, 18, and 22 immediately after the outburst in early 1996. The persistent count rates ranged from 190 to 450 counts s(-1) (1-60 keV). During this period of time, 4U 1608-52 was in the island state. We detected quasi-periodic oscillation (QPO) features in the power density spectra (PDS) at 567-800 Hz on March 15 and 22, with source fractional root mean square (rms) amplitude of 13%-17% and widths of 78-180 Hz. The average rms amplitude of these QPO features is positively correlated with the energy. Our results imply that the neutron star spin frequency is possibly between 300 and 365 Hz.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:A1997YJ47700008
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240252]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yu, W,Zhang, SN,Harmon, BA,et al. kHz quasi-periodic oscillation in island state of 4U 1608-52 as observed with RXTE/PCA[J]. ASTROPHYSICAL JOURNAL,1997,490(2):L153-L156.
APA	Yu, W.,Zhang, SN.,Harmon, BA.,Paciesas, WS.,Robinson, CR.,...&Kaaret, P.(1997).kHz quasi-periodic oscillation in island state of 4U 1608-52 as observed with RXTE/PCA.ASTROPHYSICAL JOURNAL,490(2),L153-L156.
MLA	Yu, W,et al."kHz quasi-periodic oscillation in island state of 4U 1608-52 as observed with RXTE/PCA".ASTROPHYSICAL JOURNAL 490.2(1997):L153-L156.