Formation of primordial black holes after Starobinsky inflation

被引：14
|
作者：
Frolovsky, Daniel [1 ]
Ketov, Sergei, V [1 ,2 ,3 ,4 ]
Saburov, Sultan [1 ]
机构：
[1] Tomsk State Univ, Interdisciplinary Res Lab, 36 Lenin Ave, Tomsk 634050, Russia
[2] Tokyo Metropolitan Univ, Dept Phys, 1-1 Minami Ohsawa, Hachioji, Tokyo 1920397, Japan
[3] Tomsk Polytech Univ, Res Sch High Energy Phys, 2a Lenin Ave, Tomsk 634028, Russia
[4] Univ Tokyo Inst Adv Study, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan
来源：
MODERN PHYSICS LETTERS A | 2022年 / 37卷 / 21期
关键词：
Inflation; primordial black holes; COSMOLOGY; MODELS;
D O I：
10.1142/S0217732322501358
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we adapted the Appleby-Battye-Starobinsky model of F(R) gravity towards describing double cosmological inflation and formation of primordial black holes with masses up to 10(19) g in the single-field model. We found that it is possible to get an enhancement of the power spectrum of scalar curvature perturbations to the level beyond the Hawking (black hole evaporation) limit of 10(15) g, so that the primordial black holes resulting from gravitational collapse of those large primordial perturbations can survive in the present universe and form part of cold dark matter. Our results agree with the current measurements of cosmic microwave background radiation within 3 sigma but require fine-tuning of the parameters.
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页数：9
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