Double inflation as a single origin of primordial black holes for all dark matter and LIGO observations

被引：129

作者：

Inomata, Keisuke ^{[1
,2
]}

Kawasaki, Masahiro ^{[1
,2
]}

Mukaida, Kyohei ^{[3
]}

Yanagida, Tsutomu T. ^{[2
]}

机构：

[1] Univ Tokyo, ICRR, Kashiwa, Chiba 2778582, Japan

[2] Univ Tokyo, Kavli IPMU WPI, UTIAS, Kashiwa, Chiba 2778583, Japan

[3] DESY, Notkestr 85, D-22607 Hamburg, Germany

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 04期

关键词：

GRAVITATIONAL-WAVES; CHAOTIC INFLATION; MASS; SPECTRUM; LIMITS; DIFFRACTION;

D O I：

10.1103/PhysRevD.97.043514

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A primordial black hole (PBH) is one of the leading nonparticle candidates for dark matter (DM). Although several observations severely constrain the amount of PBHs, it was recently pointed out that there is an uncertainty on the microlensing constraints below similar to 10(-10) M-circle dot, which was ignored originally but may weaken the constraints significantly. In this paper, facing this uncertainty, we investigate the possibility that PBHs can make up all DM in a broad mass spectrum. Moreover, we propose a concrete inflation model that can simultaneously produce PBHs for all DM in a broad mass spectrum around O(10(-13))M-circle dot and PBHs for LIGO events in a sharp mass spectrum at O(10)M-circle dot.

引用

页数：11

共 101 条

[31] Primordial black holes as a tool for constraining non-Gaussianity [J].