Testing the Prediction of Fuzzy Dark Matter Theory in the Milky Way Center
文献类型：期刊论文
| 作者 | Li, Zhi1; Shen, Juntai2,3,4,5; Schive, Hsi-Yu6,7 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 889期号:2页码:12 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab6598 |
| 英文摘要 | The fuzzy dark matter model (FDM; also known as quantum wave dark matter model) argues that light bosons with a mass of 10-22 eV are a possible candidate for dark matter in the universe. One of the most important predictions of FDM is the formation of a soliton core instead of a density cusp at the center of galaxies. If FDM is the correct theory of dark matter, then the predicted soliton core can help form the Central Molecular Zone (CMZ) in the Milky Way. We present high-resolution hydrodynamical simulations of gas flow patterns to constrain the properties of the soliton core based on a realistic Milky Way potential. We find that a dense center is required to form a reasonable CMZ. The size and kinematics of the CMZ offer a relatively strong constraint on the inner enclosed mass profile of the Galaxy. If a soliton core is not considered, a compact nuclear bulge alone with a radially varying mass-to-light ratio can match the observed size and kinematics of the CMZ. A soliton core model with a mass of 4.0 ' 108 M. and a core radius of 0.05 kpc, together with a less massive nuclear bulge with a constant mass-to-light ratio, also agrees nicely with the current data. Such an FDM soliton core corresponds to a boson mass of (2-7)' 10-22 eV, which could be further constrained by the improved determination of the mass-to-light ratio in the Galactic center. |
| WOS关键词 | UNSPLIT GODUNOV METHOD ; CENTRAL MOLECULAR ZONE ; GAS-FLOW ; BARRED POTENTIALS ; GALACTIC BULGE ; STELLAR ; MASS ; GALAXY ; I. ; UNCERTAINTIES |
| 资助项目 | National Key R&D Program of China[2018YFA0404501] ; National Natural Science Foundation of China[11773052] ; National Natural Science Foundation of China[11761131016] ; National Natural Science Foundation of China[11333003] ; "111" Project of the Ministry of Education[B20019] ; Newton Advanced Fellowship - Royal Society ; Newton Fund ; Jade Mountain Young Scholar Award[NTU-108V0201] ; MOST of Taiwan[108-2112-M-002-023-MY3] ; NTU Core Consortium project[NTU-CC-108L893401] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000520963100001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; Newton Advanced Fellowship - Royal Society ; Newton Advanced Fellowship - Royal Society ; Newton Fund ; Newton Fund ; Jade Mountain Young Scholar Award ; Jade Mountain Young Scholar Award ; MOST of Taiwan ; MOST of Taiwan ; NTU Core Consortium project ; NTU Core Consortium project ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; Newton Advanced Fellowship - Royal Society ; Newton Advanced Fellowship - Royal Society ; Newton Fund ; Newton Fund ; Jade Mountain Young Scholar Award ; Jade Mountain Young Scholar Award ; MOST of Taiwan ; MOST of Taiwan ; NTU Core Consortium project ; NTU Core Consortium project ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; Newton Advanced Fellowship - Royal Society ; Newton Advanced Fellowship - Royal Society ; Newton Fund ; Newton Fund ; Jade Mountain Young Scholar Award ; Jade Mountain Young Scholar Award ; MOST of Taiwan ; MOST of Taiwan ; NTU Core Consortium project ; NTU Core Consortium project ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "111" Project of the Ministry of Education ; "111" Project of the Ministry of Education ; Newton Advanced Fellowship - Royal Society ; Newton Advanced Fellowship - Royal Society ; Newton Fund ; Newton Fund ; Jade Mountain Young Scholar Award ; Jade Mountain Young Scholar Award ; MOST of Taiwan ; MOST of Taiwan ; NTU Core Consortium project ; NTU Core Consortium project |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/55489]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Shen, Juntai |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, 800 Dongchuan Rd, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Phys & Astron, Dept Astron, 800 Dongchuan Rd, Shanghai 0040, Peoples R China 3.Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 5.Univ Chinese Acad Sci, Coll Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 6.Natl Taiwan Univ, Ctr Theoret Phys, Taipei 1017, Taiwan 7.Natl Taiwan Univ, Inst Astrophys, Taipei 1061, Taiwan |
| 推荐引用方式 GB/T 7714 | Li, Zhi,Shen, Juntai,Schive, Hsi-Yu. Testing the Prediction of Fuzzy Dark Matter Theory in the Milky Way Center[J]. ASTROPHYSICAL JOURNAL,2020,889(2):12. |
| APA | Li, Zhi,Shen, Juntai,&Schive, Hsi-Yu.(2020).Testing the Prediction of Fuzzy Dark Matter Theory in the Milky Way Center.ASTROPHYSICAL JOURNAL,889(2),12. |
| MLA | Li, Zhi,et al."Testing the Prediction of Fuzzy Dark Matter Theory in the Milky Way Center".ASTROPHYSICAL JOURNAL 889.2(2020):12. |
入库方式： OAI收割
来源：国家天文台
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