Document detail
ID
oai:arXiv.org:2411.09081
Topic
Astrophysics - Astrophysics of Gal... Astrophysics - Cosmology and Nonga...Author
Regan, Jonathan Kalomenopoulos, Marios O'Neil, Kelly KosmoCategory
sciences: astrophysics
Year
2024
listing date
3/19/2025
Keywords
primordial hr radiation black astrophysics holesAbstract
The formation of supermassive black holes (SMBHs) in the early Universe is a subject of significant debate.
In this study, we examine whether non-evaporating primordial black holes (PBHs) can offer a solution.
We establish initial constraints on the range of PBH masses that correspond to Hawking radiation (HR) effective temperatures in the range needed to suppress $H_2$ cooling, which would facilitate the formation of massive black hole seeds in atomic cooling halos.
We also investigate the specific intensity of the HR from non-evaporating PBHs and compare it with the critical radiation needed for direct collapse black holes (DCBHs).
We show that HR from non-evaporating PBHs cannot serve as an irradiating mechanism to facilitate the formation of the seeds for the SMBHs we observe in the high-redshift Universe unless, perhaps, the PBHs within the relevant mass range comprise a significant fraction of dark matter and are significantly clustered towards the center of the primordial halo.
;Comment: 16 pages, 6 figures.
Project based on an undergraduate thesis, accepted for publication at the Open Journal of Astrophysics
Regan, Jonathan,Kalomenopoulos, Marios,O'Neil, Kelly Kosmo, 2024, Hawking Radiation from non-evaporating primordial black holes cannot enable the formation of direct collapse black holes
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