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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; Kaaret, P
1997
发表期刊ASTROPHYSICAL JOURNAL
卷号490期号:2页码:L153-L156
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
文章类型Article
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.
关键词stars, individual (4U 1608-52) stars, neutron X-rays, stars
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1086/311033
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:A1997YJ47700008
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240252
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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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.
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