Features of the gamma-ray pulsar halo HESS J1831-098
文献类型：期刊论文
| 作者 | Fang, K ; Xi, SQ; Bao, LZ; Bi, XJ; Chen, ES
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2022 |
| 卷号 | 106期号:12页码:123017 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.106.123017 |
| 文献子类 | Article |
| 英文摘要 | Gamma-ray pulsar halos are ideal indicators of cosmic-ray propagation in localized regions of the Galaxy and electron injection from pulsar wind nebulae. HESS J1831 - 098 is a candidate pulsar halo observed by both the H.E.S.S. and HAWC experiments. We adopt the flux map of the H.E.S.S. Galactic plane survey and the spectrum measurements of H.E.S.S. and Fermi-LAT to study HESS J1831 - 098. We find that HESS J1831 - 098 meets all the criteria for a pulsar halo. The diffusion coefficient inside the halo and the conversion efficiency from the pulsar spin-down energy to the electron energy are both similar to the Geminga halo, a canonical pulsar halo. The injection spectrum can be well described by an exponentially cutoff power law. However, the needed power-law term is very hard with p less than or similar to 1 if the diffusion coefficient is spatially and temporally independent. Considering the possible origins of the slow-diffusion environment, we adopt the two -zone diffusion model and the time-delayed slow-diffusion model. Both the models can interpret the H.E.S.S. and Fermi-LAT results with a milder p. A modified injection time profile may have a similar effect. |
| 电子版国际标准刊号 | 2470-0029 |
| 语种 | 英语 |
| WOS记录号 | WOS:000901736200004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/300171]  |
| 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 | Fang, K,Xi, SQ,Bao, LZ,et al. Features of the gamma-ray pulsar halo HESS J1831-098[J]. PHYSICAL REVIEW D,2022,106(12):123017. |
| APA | Fang, K,Xi, SQ,Bao, LZ,Bi, XJ,&Chen, ES.(2022).Features of the gamma-ray pulsar halo HESS J1831-098.PHYSICAL REVIEW D,106(12),123017. |
| MLA | Fang, K,et al."Features of the gamma-ray pulsar halo HESS J1831-098".PHYSICAL REVIEW D 106.12(2022):123017. |
入库方式： OAI收割
来源：高能物理研究所
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