Отправить статью по E-mail Galactic Constraints on Fermionic Dark Matter
- Авторы: Krut A.1,2,3, Arguëlles C.R.1,4, Rueda J.1,2,5, Ruffini R.1,2,5
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Учреждения:
- ICRANet
- ICRA and University of Rome “Sapienza,”
- University of Nice-Sophia Antipolis
- Instituto de Astrofisica de La Plata (CCT La Plata, CONICET, UNLP)
- ICRANet-Rio
- Выпуск: Том 62, № 12 (2018)
- Страницы: 898-904
- Раздел: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/192022
- DOI: https://doi.org/10.1134/S1063772918120247
- ID: 192022
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Аннотация
In order to explain Galactic structures, a self-gravitating system composed of massive fermions in spherical symmetry is considered. The finite mass distribution of such a component is obtained after solving the Einstein equation for a thermal and semi-degenerate fermionic gas, described by a perfect fluid in hydrostatic equilibrium and exposed to cutoff effects (e.g. evaporation). Within this more general approach a family of density profiles arises, which explains dark matter halo constraints of the Galaxy and provides at the same time an alternative to the central black hole scenario in Sgr A*. This analysis narrows the allowed particle mass to mc2 = 48−345 keV.
Об авторах
A. Krut
ICRANet; ICRA and University of Rome “Sapienza,”; University of Nice-Sophia Antipolis
Автор, ответственный за переписку.
Email: andreas.krut@gmx.de
Италия, Pescara; Rome; Nice
C. Arguëlles
ICRANet; Instituto de Astrofisica de La Plata (CCT La Plata, CONICET, UNLP)
Email: andreas.krut@gmx.de
Италия, Pescara; La Plata
J. Rueda
ICRANet; ICRA and University of Rome “Sapienza,”; ICRANet-Rio
Email: andreas.krut@gmx.de
Италия, Pescara; Rome; Rio de Janeiro
R. Ruffini
ICRANet; ICRA and University of Rome “Sapienza,”; ICRANet-Rio
Email: andreas.krut@gmx.de
Италия, Pescara; Rome; Rio de Janeiro
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