Abundance of primordial black holes with local non-Gaussianity in peak theory
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2019
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866929279534628864 |
|---|---|
| author | Yoo, Chul-Moon Gong, Jinn-Ouk Yokoyama, Shuichiro |
| author_facet | Yoo, Chul-Moon Gong, Jinn-Ouk Yokoyama, Shuichiro |
| contents | We discuss the effect of local type non-Gaussianity on the abundance of primordial black holes (PBH) based on the peak theory. We provide the PBH formation criterion based on the so-called compaction function and use the peak theory statistics associated with the curvature perturbation with the local type non-Gaussianity. Providing a method to estimate the PBH abundance, we demonstrate the effects of non-Gaussianity. It is explicitly shown that the value of non-linear parameter $|f_{\rm NL}| \sim 1$ induces a similar effect to a few factors of difference in the amplitude of the power spectrum. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1906_06790 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Abundance of primordial black holes with local non-Gaussianity in peak theory Yoo, Chul-Moon Gong, Jinn-Ouk Yokoyama, Shuichiro Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology We discuss the effect of local type non-Gaussianity on the abundance of primordial black holes (PBH) based on the peak theory. We provide the PBH formation criterion based on the so-called compaction function and use the peak theory statistics associated with the curvature perturbation with the local type non-Gaussianity. Providing a method to estimate the PBH abundance, we demonstrate the effects of non-Gaussianity. It is explicitly shown that the value of non-linear parameter $|f_{\rm NL}| \sim 1$ induces a similar effect to a few factors of difference in the amplitude of the power spectrum. |
| title | Abundance of primordial black holes with local non-Gaussianity in peak theory |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/1906.06790 |