Discovery of a 136 millisecond radio and X-ray pulsar in supernova remnant G54.1+0.3
文献类型：期刊论文
| 作者 | Camilo, F; Lorimer, DR; Bhat, NDR; Gotthelf, EV; Halpern, JP; Wang, QD; Lu, FJ ; Mirabal, N; Lu FJ(卢方军)
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2002 |
| 卷号 | 574期号:1页码:L71-L74 |
| 关键词 | ISM : individual (G54.1+0.3) pulsars : individual (PSR J1930+1852) supernova remnants |
| 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 |
| 英文摘要 | 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. |
| 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:000176978300017 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240293]  |
| 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 | 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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来源：高能物理研究所
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