The dark matter profiles in the Milky Way
The dark matter profiles in the Milky Way
复制标题
银河系中的暗物质轮廓
DOI:
10.1093/mnras/stz1698
复制
发表时间:
2019-06
影响因子:
4.8
通讯作者:
Li Xin
中科院分区:
文献类型:
--
作者:
Lin Hai Nan;Li Xin
We investigate the dark matter profile of the Milky Way using the observed rotation curve data out to 100 kpc. The baryonic matter of the Milky Way is divided into bulge, disc, and gas components, and each component is modelled using various possible mass profiles available in literature. The arbitrary combination of seven bulge profiles, four disc profiles, and two gas profiles results in 56 baryon models. These baryon models are combined with one of the four dark matter profiles: Burkert profile, core-modified profile, pseudo-isothermal profile, and NFW profile, to fit the observed rotation curve data. Results show that in general the NFW profile fits the data better than the Burkert profile, while the core-modified profile and the pseudo-isothermal profile are essentially ruled out. The best-fitting NFW model has the scale lengthr0= 8.1 ± 0.7 kpc, and the corresponding local density of dark matter is ρdm(R= R⊙) = 0.51 ± 0.09 GeV cm−3.
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影响因子:
4.4
作者:
Chang, Zhe;Li, Ming-Hua;Li, Xin;Lin, Hai-Nan;Wang, Sai
通讯作者:
Wang, Sai
DOI:
10.1086/161131
发表时间:
1983-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Milgrom
通讯作者:
M. Milgrom
影响因子:
4.8
作者:
J. An;J. An;HongSheng Zhao;HongSheng Zhao;HongSheng Zhao
通讯作者:
J. An;J. An;HongSheng Zhao;HongSheng Zhao;HongSheng Zhao
DOI:
10.1086/305469
发表时间:
1998-04
期刊:
The Astrophysical Journal
影响因子:
--
作者:
K. Ferrière
通讯作者:
K. Ferrière
DOI:
10.1086/151562
发表时间:
1972
期刊:
The Astrophysical Journal
影响因子:
--
作者:
R. Whitehurst;Roberts
通讯作者:
R. Whitehurst;Roberts