A generic method to constrain the dark matter model parameters from Fermi observations of dwarf spheroids
文献类型：期刊论文
| 作者 | Tsai, Yue-Lin Sming1; Yuan, Qiang2,3; Huang, Xiaoyuan4 |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 0期号:3页码:97-100 |
| ISSN号 | 1475-7516 |
| 关键词 | dark matter detectors dark matter theory gamma ray detectors gamma ray experiments |
| 通讯作者 | Tsai, YLS (reprint author), Natl Ctr Nucl Res, Hoza 69, PL-00681 Warsaw, Poland. Email: Sming.Tsai@fuw.edu.pl ; yuanq@ihep.ac.cn ; x_huang@bao.ac.cn |
| 英文摘要 | Observation of gamma-rays from dwarf galaxies is an effective way to search for particle dark matter. Using 4-year data of Fermi-LAT observations on a series of Milky Way satellites, we develop a general way to search for the signals from dark matter annihilation in such objects. Instead of giving prior information about the energy spectrum of dark matter annihilation, we bin the Fermi-LAT data into several energy bins and build a likelihood map in the "energy bin - flux" plane. The final likelihood of any spectrum can be easily derived through combining the likelihood of all the energy bins. It gives consistent result with that directly calculated using the Fermi Scientific Tool. This method is very efficient for the study of any specific dark matter models with gamma-rays. We use the new likelihood map with Fermi-LAT 4 year data to fit the parameter space in three representative dark matter models: i) toy dark matter model, ii) effective dark matter operators, and iii) supersymmetric neutralino dark matter. |
| 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] | GALAXIES ; DETECTOR ; BOSON ; LHC ; I. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316989200019 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9860]  |
| 专题 | 紫金山天文台_太阳高能及相关物理过程研究团组 |
| 作者单位 | 1.Natl Ctr Nucl Res, PL-00681 Warsaw, Poland 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tsai, Yue-Lin Sming,Yuan, Qiang,Huang, Xiaoyuan. A generic method to constrain the dark matter model parameters from Fermi observations of dwarf spheroids[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013,0(3):97-100. |
| APA | Tsai, Yue-Lin Sming,Yuan, Qiang,&Huang, Xiaoyuan.(2013).A generic method to constrain the dark matter model parameters from Fermi observations of dwarf spheroids.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,0(3),97-100. |
| MLA | Tsai, Yue-Lin Sming,et al."A generic method to constrain the dark matter model parameters from Fermi observations of dwarf spheroids".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 0.3(2013):97-100. |
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来源：紫金山天文台
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