Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M15
文献类型：期刊论文
| 作者 | Feng, Lei1,2,3; Yuan, Qiang1; Yin, Peng-Fei1; Bi, Xiao-Jun1; Li, Mingzhe2,3 |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2012-04-01 |
| 期号 | 4页码:030 |
| 关键词 | dark matter theory gamma ray experiments |
| ISSN号 | 1475-7516 |
| 英文摘要 | The globular clusters are probably good targets for dark matter (DM) searches in gamma-rays due to the possible adiabatic contraction of DM by baryons. In this work we analyse the three-year data collected by Fermi Large Area Telescope of globular clusters NGC 6388 and M 15 to search for possible DM signals. For NGC 6388 the detection of gamma-ray emission was reported by Fermi collaboration, which is consistent with the emission of a population of millisecond pulsars. The spectral shape of NGC 6388 is also shown to be consistent with a DM contribution if assuming the annihilation final state is b (b) over bar. No significant gamma-ray emission from M 15 is observed. We give the upper limits of DM contribution to gamma-ray emission in both NGC 6388 and M 15, for annihilation final states b (b) over bar, W+W-, mu(+)mu(-), tau(+)tau(-) and monochromatic line. The constraints are stronger than that derived from observation of dwarf galaxies by Fermi. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 关键词[WOS] | LARGE-AREA TELESCOPE ; GAMMA-RAY EMISSION ; MASS BLACK-HOLE ; DENSITY PROFILE ; SURFACE-DENSITY ; GENERIC MODEL ; COSMIC-RAYS ; MILKY-WAY ; CONSTRAINTS ; GALAXIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000303665000030 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/7987]  |
| 专题 | 紫金山天文台_空间目标与碎片观测研究基地 |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 2.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Lei,Yuan, Qiang,Yin, Peng-Fei,et al. Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M15[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2012(4):030. |
| APA | Feng, Lei,Yuan, Qiang,Yin, Peng-Fei,Bi, Xiao-Jun,&Li, Mingzhe.(2012).Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M15.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(4),030. |
| MLA | Feng, Lei,et al."Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M15".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .4(2012):030. |
入库方式： OAI收割
来源：紫金山天文台
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