Can fermionic dark matter mimic supermassive black holes?

被引：7

作者：

Arguelles, C. R. ^{[1
]}

Krut, A. ^{[2
]}

Rueda, J. A. ^{[2
,3
]}

Ruffini, R. ^{[2
,4
]}

机构：

[1] UNLP, Inst Astrofis La Plata, CCT La Plata, CONICET, B1900FWA, La Plata, Buenos Aires, Argentina

[2] ICRANet, Piazza Repubbl 10, I-65122 Pescara, Italy

[3] Ist Astrofis & Planetol Spaziali, INAF, Via Fosso Cavaliere 100, I-00133 Rome, Italy

[4] INAF, Viale Parco Mellini 84, I-00136 Rome, Italy

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2019年 / 28卷 / 14期

关键词：

Dark matter; galaxies; supermassive black holes; halos; self-gravitating systems; fermions;

D O I：

10.1142/S021827181943003X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the intriguing possibility of explaining both dark mass components in a galaxy: the dark matter (DM) halo and the supermassive dark compact object lying at the center, by a unified approach in terms of a quasi-relaxed system of massive, neutral fermions in general relativity. The solutions to the mass distribution of such a model that fulfill realistic halo boundary conditions inferred from observations, develop a high-density core supported by the fermion degeneracy pressure able to mimic massive black holes at the center of galaxies. Remarkably, these dense core-diluted halo configurations can explain the dynamics of the closest stars around Milky Way's center (SgrA*) all the way to the halo rotation curve, without spoiling the baryonic bulge-disk components, for a narrow particle mass range mc(2 )similar to 10-10(2) keV.

引用

页数：9

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