Very old isolated compact objects as dark matter probes
文献类型：期刊论文
| 作者 | Fan, Yi-Zhong1 ; Yang, Rui-Zhi; Chang, Jin
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2011-11-08 |
| 卷号 | 84期号:10页码:1-9 |
| ISSN号 | 1550-7998 |
| 关键词 | INTERACTING MASSIVE PARTICLES ISOLATED NEUTRON-STARS GLOBULAR-CLUSTERS EMISSION SUN CANDIDATES ENERGIES CAPTURE DWARFS |
| 英文摘要 | Very old isolated neutron stars and white dwarfs have been suggested to be probes of dark matter. To play such a role, two requests should be fulfilled, i.e., the annihilation luminosity of the captured dark matter particles is above the thermal emission of the cooling compact objects (request-I) and also dominate over the energy output due to the accretion of normal matter onto the compact objects (request-II). Request-I calls for very dense dark matter medium and the critical density sensitively depends on the residual surface temperature of the very old compact objects. The accretion of interstellar/intracluster medium onto the compact objects is governed by the physical properties of the medium and by the magnetization and rotation of the stars and may outshine the signal of dark matter annihilation. Only in a few specific scenarios both requests are satisfied and the compact objects are dark matter burners. The observational challenges are discussed and a possible way to identify the dark matter burners is outlined. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 关键词[WOS] | INTERACTING MASSIVE PARTICLES ; ISOLATED NEUTRON-STARS ; GLOBULAR-CLUSTERS ; EMISSION ; SUN ; CANDIDATES ; ENERGIES ; CAPTURE ; DWARFS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000296914900002 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4546]  |
| 专题 | 紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Yi-Zhong,Yang, Rui-Zhi,Chang, Jin. Very old isolated compact objects as dark matter probes[J]. PHYSICAL REVIEW D,2011,84(10):1-9. |
| APA | Fan, Yi-Zhong,Yang, Rui-Zhi,&Chang, Jin.(2011).Very old isolated compact objects as dark matter probes.PHYSICAL REVIEW D,84(10),1-9. |
| MLA | Fan, Yi-Zhong,et al."Very old isolated compact objects as dark matter probes".PHYSICAL REVIEW D 84.10(2011):1-9. |
入库方式： OAI收割
来源：紫金山天文台
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