PSR J1906+0722: AN ELUSIVE GAMMA-RAY PULSAR
文献类型：期刊论文
| 作者 | Clark, CJ; Pletsch, HJ; Wu, J; Guillemot, L; Ackermann, M; Allen, B; de Angelis, A; Aulbert, C; Baldini, L; Ballet, J |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2015-08-10 |
| 卷号 | 809期号:1 |
| 关键词 | gamma rays: stars pulsars: individual (PSR J1906+0722) |
| ISSN号 | 2041-8205 |
| 产权排序 | 第三十八完成单位 |
| 通讯作者 | Clark, CJ (reprint author), Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany. |
| 英文摘要 | We report the discovery of PSR J1906+0722, a gamma-ray pulsar detected as part of a blind survey of unidentified Fermi Large Area Telescope (LAT) sources being carried out on the volunteer distributed computing system, Einstein@Home. This newly discovered pulsar previously appeared as the most significant remaining unidentified gamma-ray source without a known association in the second Fermi-LAT source catalog (2FGL) and was among the top 10 most significant unassociated sources in the recent third catalog (3FGL). PSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of 8.9 Hz, a characteristic age of 49 kyr, and spin-down power 1.0 x 10(36) erg s(-1). In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar (Delta f/f approximate to 4.5 x 10(-6)). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. An off-pulse analysis of the gamma-ray flux from the location of PSR J1906+0722 revealed the presence of an additional nearby source, which may be emission from the interaction between a neighboring supernova remnant and a molecular cloud. We discuss possible effects which may have hindered the detection of PSR J1906+0722 in previous searches and describe the methods by which these effects were mitigated in this survey. We also demonstrate the use of advanced timing methods for estimating the positional, spin and glitch parameters of difficult-to-time pulsars such as this. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LARGE-AREA TELESCOPE ; FERMI UNASSOCIATED SOURCES ; REMNANT 3C 397 ; SOURCE CATALOG ; SEARCHES ; MULTIWAVELENGTH ; DISCOVERY ; MODEL ; YOUNG |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/2041-8205/809/1/L2/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000359321900002 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5043]  |
| 专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 推荐引用方式 GB/T 7714 | Clark, CJ,Pletsch, HJ,Wu, J,et al. PSR J1906+0722: AN ELUSIVE GAMMA-RAY PULSAR[J]. ASTROPHYSICAL JOURNAL LETTERS,2015,809(1). |
| APA | Clark, CJ.,Pletsch, HJ.,Wu, J.,Guillemot, L.,Ackermann, M.,...&Yassine, M.(2015).PSR J1906+0722: AN ELUSIVE GAMMA-RAY PULSAR.ASTROPHYSICAL JOURNAL LETTERS,809(1). |
| MLA | Clark, CJ,et al."PSR J1906+0722: AN ELUSIVE GAMMA-RAY PULSAR".ASTROPHYSICAL JOURNAL LETTERS 809.1(2015). |
入库方式： OAI收割
来源：云南天文台
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