Constraints on the parameters of keV-scale mass annihilating dark matter obtained with SRG/ART-XC observations

被引：0
作者：
Zakharov, E. I. [1 ,2 ,3 ]
Barinov, V. V. [3 ]
Burenin, R. A. [1 ,2 ]
Gorbunov, D. S. [3 ,4 ]
Krivonos, R. A. [1 ,3 ]
机构：
[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia
[2] Natl Res Univ Higher Sch Econ, Moscow 101000, Russia
[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia
来源：
PHYSICAL REVIEW D | 2024年 / 110卷 / 12期
关键词：
MILKY-WAY; PROFILES; CURVE;
D O I：
10.1103/PhysRevD.110.123026
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper we present new constraints on the velocity-independent cross section of keV-scale mass annihilating dark matter particles obtained with SRG/ART-XC after 4 full-sky surveys. These constraints are derived from observations of the Milky Way Halo, 33 Local Group spheroidal dwarf (dSph) galaxies and separately for the dSph galaxy Ursa Major III/UNIONS 1. The constraints from the Milky Way Halo are the strongest among others and among all available in literature for this class of dark matter models with particle masses from 4 to 15 keV.
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页数：9
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