Influence of supermassive primordial black holes on ultraviolet luminosity of high-redshift galaxies
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912582752796672 |
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| author | Li, Yi-Yang Huang, Hai-Long Piao, Yun-Song |
| author_facet | Li, Yi-Yang Huang, Hai-Long Piao, Yun-Song |
| contents | Recently James Webb Space Telescope (JWST) have observed an excess of luminous galaxies at high redshifts ($z \gtrsim 10$). In this work, we investigate whether supermassive primordial black holes (SMPBHs) can explain it by their influence on the ultraviolet luminosity function (UV LF) of high-redshift galaxies. Through Markov Chain Monte Carlo analysis, we constrain the parameters relevant with SMPBHs against current JWST observational data. The results reveal that SMPBHs with masses $M_{\rm PBH} \sim 10^{6.3\text{-}8.3} M_\odot$, abundances $f_{\rm PBH} \sim 10^{-7}\text{-}10^{-5}$, and sub-Eddington ratios $λ_E \ll 1$ can effectively enhance the bright end of the UV LF, consistent with JWST observations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_03152 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Influence of supermassive primordial black holes on ultraviolet luminosity of high-redshift galaxies Li, Yi-Yang Huang, Hai-Long Piao, Yun-Song Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Recently James Webb Space Telescope (JWST) have observed an excess of luminous galaxies at high redshifts ($z \gtrsim 10$). In this work, we investigate whether supermassive primordial black holes (SMPBHs) can explain it by their influence on the ultraviolet luminosity function (UV LF) of high-redshift galaxies. Through Markov Chain Monte Carlo analysis, we constrain the parameters relevant with SMPBHs against current JWST observational data. The results reveal that SMPBHs with masses $M_{\rm PBH} \sim 10^{6.3\text{-}8.3} M_\odot$, abundances $f_{\rm PBH} \sim 10^{-7}\text{-}10^{-5}$, and sub-Eddington ratios $λ_E \ll 1$ can effectively enhance the bright end of the UV LF, consistent with JWST observations. |
| title | Influence of supermassive primordial black holes on ultraviolet luminosity of high-redshift galaxies |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2509.03152 |