Dark matter decaying in the late Universe can relieve the H0 tension

被引：150
|
作者：
Vattis, Kyriakos [1 ,2 ]
Koushiappas, Savvas M. [1 ,2 ]
Loeb, Abraham [3 ]
机构：
[1] Brown Univ, Dept Phys, 182 Hope St, Providence, RI 02912 USA
[2] Brown Theoret Phys Ctr, 182 Hope St, Providence, RI 02912 USA
[3] Harvard Univ, Dept Astron, 60 Garden St, Cambridge, MA 02138 USA
来源：
PHYSICAL REVIEW D | 2019年 / 99卷 / 12期
关键词：
LY-ALPHA FOREST;
D O I：
10.1103/PhysRevD.99.121302
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the cosmological effects of two-body dark matter decays in which the products of the decay include a massless and a massive particle. We show that if the massive daughter particle is slightly warm it is possible to relieve the tension between distance ladder measurements of the present-day Hubble parameter with measurements from the cosmic microwave background.
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页数：6
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