2020年8月15日
Threshold of primordial black hole formation in nonspherical collapse
Physical Review D
- ,
- ,
- 巻
- 102
- 号
- 4
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.102.043526
© 2020 American Physical Society. We perform (3+1)-dimensional simulations of primordial black hole (PBH) formation starting from the spheroidal superhorizon perturbations. We investigate how the ellipticity (prolateness or oblateness) affects the threshold of PBH formation in terms of the peak amplitude of curvature perturbation. We find that, in the case of the radiation-dominated universe, the effect of ellipticity on the threshold is negligibly small for large amplitude of perturbations expected for PBH formation.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevD.102.043526
- ISSN : 2470-0010
- eISSN : 2470-0029
- ORCIDのPut Code : 79516038
- SCOPUS ID : 85091876779