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Discovery of a 136 millisecond radio and X-ray pulsar in supernova remnant G54.1+0.3
Camilo, F; Lorimer, DR; Bhat, NDR; Gotthelf, EV; Halpern, JP; Wang, QD; Lu, FJ; Mirabal, N; Lu FJ(卢方军)
2002
发表期刊ASTROPHYSICAL JOURNAL
卷号574期号:1页码:L71-L74
通讯作者Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA ; Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England ; Arecibo Observ, NAIC, Arecibo, PR 00612 USA ; Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA ; Acad Sinica, Inst High Energy Phys, Lab Cosm Ray & High Energy Astrophys, Beijing 100039, Peoples R China
文章类型Article
摘要We report the discovery of a pulsar with period P = 136 ms and dispersion measure 308 cm(-3) pc in a deep observation of the supernova remnant (SNR) G54.1+0.3 with the Arecibo radio telescope. Timing measurements of the new pulsar, J1930+1852, reveal a characteristic age of P/2 (P) over dot = 2900 yr and a spin-down luminosity of (E) over dot = 1.2 x 10(37) ergs s(-1). We have subsequently searched archival ASCA X-ray data of this SNR and detect pulsations with a consistent period. These findings ensure that PSR J1930+1852 is the pulsar that powers the "Crab-like" SNR G54.1+0.3. Together with existing Chandra observations of the SNR, we derive an X-ray pulsed fraction (2-10 keV) of approximate to27%. We also find that the cooling efficiency of the pulsar wind nebula (PWN) is intermediate between those of the Vela and Crab PWNe: L-x(2-10 keV) similar to0.002 (E) over dot. PSR J1930+1852 is a very weak radio source, with a period-averaged flux density at 1180 MHz of 60 muJy. For a distance of 5 kpc, its luminosity, similar to1 mJy kpc(2), is among the lowest for known young pulsars.
关键词ISM : individual (G54.1+0.3) pulsars : individual (PSR J1930+1852) supernova remnants
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1086/342351
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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:000176978300017
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被引频次:19[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/311005/240293
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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Camilo, F,Lorimer, DR,Bhat, NDR,et al. Discovery of a 136 millisecond radio and X-ray pulsar in supernova remnant G54.1+0.3[J]. ASTROPHYSICAL JOURNAL,2002,574(1):L71-L74.
APA Camilo, F.,Lorimer, DR.,Bhat, NDR.,Gotthelf, EV.,Halpern, JP.,...&卢方军.(2002).Discovery of a 136 millisecond radio and X-ray pulsar in supernova remnant G54.1+0.3.ASTROPHYSICAL JOURNAL,574(1),L71-L74.
MLA Camilo, F,et al."Discovery of a 136 millisecond radio and X-ray pulsar in supernova remnant G54.1+0.3".ASTROPHYSICAL JOURNAL 574.1(2002):L71-L74.
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