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Where will supersymmetric dark matter first be seen?
文献类型：期刊论文
| 作者 | Gao, L.1,2 ; Frenk, C. S.2; Jenkins, A.2; Springel, V.3,4; White, S. D. M.5
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012 |
| 卷号 | 419期号:2页码:1721-1726 |
| 关键词 | methods: numerical galaxies: haloes dark matter |
| 英文摘要 | If the dark matter consists of supersymmetric particles, ?-ray observatories such as the Large Area Telescope aboard the Fermi satellite may detect annihilation radiation from the haloes of galaxies and galaxy clusters. Much recent effort has been devoted to searching for this signal around the Milky Ways dwarf satellites. Using a new suite of high-resolution simulations of galaxy cluster haloes (the Phoenix Project), together with the Aquarius simulations of Milky Way-like galaxy haloes, we show that higher signal-to-noise ratio and equally clean signals are, in fact, predicted to come from nearby rich galaxy clusters. Most of the cluster emission is produced by small subhaloes with masses less than that of the Sun. The large range of mass scales covered by our two sets of simulations allows us to deduce a physically motivated extrapolation to these small (and unresolved) masses. Since tidal effects destroy subhaloes in the dense inner regions of haloes, most cluster emission is then predicted to come from large radii, implying that the nearest and brightest systems should be much more extended than Fermis angular resolution limit. The most promising targets for detection are clusters such as Coma and Fornax, but detection algorithms must be tuned to the predicted profile of the emission if they are to maximize the chance of finding this weak signal. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298482300072 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6114]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Max Planck Inst Astrophys, Partner Grp, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Durham, Dept Phys, Inst Computat Cosmol, Sci Labs, Durham DH1 3LE, England 3.Heidelberger Inst Theoret Studien, D-69118 Heidelberg, Germany 4.Univ Heidelberg, Zentrum Astron, Astron Recheninst, D-69120 Heidelberg, Germany 5.Max Planck Inst Astrophys, D-857483 Garching, Germany |
| 推荐引用方式 GB/T 7714 | Gao, L.,Frenk, C. S.,Jenkins, A.,et al. Where will supersymmetric dark matter first be seen?[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,419(2):1721-1726. |
| APA | Gao, L.,Frenk, C. S.,Jenkins, A.,Springel, V.,&White, S. D. M..(2012).Where will supersymmetric dark matter first be seen?.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,419(2),1721-1726. |
| MLA | Gao, L.,et al."Where will supersymmetric dark matter first be seen?".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 419.2(2012):1721-1726. |
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来源：国家天文台
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