Constraints on light decaying dark matter candidates from 16 yr of INTEGRAL/SPI observations

被引：20
作者：
Calore, F. [1 ]
Dekker, A. [2 ]
Serpico, P. D. [1 ]
Siegert, T. [3 ]
机构：
[1] USMB, CNRS, LAPTh, F-74940 Annecy, France
[2] Univ Amsterdam, GRAPPA Inst, NL-1098 XH Amsterdam, Netherlands
[3] Univ Wurzburg, Inst Theoret Phys & Astrophys, Campus Hubland Nord,Emil Fischer Str 31, D-97074 Wurzburg, Germany
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 520卷 / 03期
关键词：
astroparticle physics; dark matter; gamma-rays: general; PRIMORDIAL BLACK-HOLES;
D O I：
10.1093/mnras/stad457
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We apply the recently developed analysis of 16 yr of INTEGRAL/SPI data including a dark matter spatial template to derive bounds on dark matter candidates lighter than weakly interacting massive particles (like sterile neutrinos or axion-like particles) decaying into line or continuum electromagnetic final state channels. The bounds obtained are the strongest to date for dark matter masses between similar to 60 keV and similar to 16 MeV experiencing two-body decays producing photon lines.
引用
收藏
页码：4167 / 4172
页数：6
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