@article{cappelluti_exploring_2021,
	title = {Exploring the high-redshift {PBH}-\${\textbackslash}{Lambda}\${CDM} {Universe}: early black hole seeding, the first stars and cosmic radiation backgrounds},
	shorttitle = {Exploring the high-redshift {PBH}-\${\textbackslash}{Lambda}\${CDM} {Universe}},
	url = {http://arxiv.org/abs/2109.08701},
	abstract = {We explore the observational implications of a model in which primordial black holes (PBHs) with a broad birth mass function ranging in mass from a fraction of a solar mass to \${\textbackslash}sim\$10\${\textasciicircum}6\$ M\$\_\{{\textbackslash}odot\}\$, consistent with current observational limits, constitute the dark matter component in the Universe. The formation and evolution of dark matter and baryonic matter in this PBH-\${\textbackslash}Lambda\$CDM{\textasciitilde} Universe are presented. In this picture, PBH DM mini-halos collapse earlier than in standard {\textbackslash}LambdaCDM, baryons cool to form stars at \$z{\textbackslash}sim15-20\$, and growing PBHs at these early epochs start to accrete through Bondi capture. The volume emissivity of these sources peaks at \$z{\textbackslash}sim20\$ and rapidly fades at lower redshifts. As a consequence, PBH DM could also provide a channel to make early black hole seeds and naturally account for the origin of an underlying dark matter halo - host galaxy and central black hole connection that manifests as the \$M\_\{{\textbackslash}rm bh\}-{\textbackslash}sigma\$ correlation. To estimate the luminosity function and contribution to integrated emission power spectrum from these high-redshift PBH DM halos, we develop a Halo Occupation Distribution (HOD) model. In addition to tracing the star formation and reionizaton history, it permits us to evaluate the Cosmic Infrared and X-ray Backgrounds (CIB and CXB). We find that accretion onto PBHs/AGN successfully accounts for the detected backgrounds and their cross-correlation, with the inclusion of an additional IR stellar emission component. Detection of the deep IR source count distribution by the JWST could reveal the existence of this population of high-redshift star-forming and accreting PBH DM.},
	urldate = {2021-10-25},
	journal = {arXiv:2109.08701 [astro-ph]},
	author = {Cappelluti, Nico and Hasinger, Günther and Natarajan, Priyamvada},
	month = sep,
	year = {2021},
	note = {arXiv: 2109.08701},
	keywords = {Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena},
}

{"_id":"8GfkDry8sFYyMfTr3","bibbaseid":"cappelluti-hasinger-natarajan-exploringthehighredshiftpbhtextbackslashlambdacdmuniverseearlyblackholeseedingthefirststarsandcosmicradiationbackgrounds-2021","author_short":["Cappelluti, N.","Hasinger, G.","Natarajan, P."],"bibdata":{"bibtype":"article","type":"article","title":"Exploring the high-redshift PBH-\\${\\textbackslash}{Lambda}\\$CDM Universe: early black hole seeding, the first stars and cosmic radiation backgrounds","shorttitle":"Exploring the high-redshift PBH-\\${\\textbackslash}{Lambda}\\$CDM Universe","url":"http://arxiv.org/abs/2109.08701","abstract":"We explore the observational implications of a model in which primordial black holes (PBHs) with a broad birth mass function ranging in mass from a fraction of a solar mass to \\${\\textbackslash}sim\\$10\\${\\textasciicircum}6\\$ M\\$_\\{{\\textbackslash}odot\\}\\$, consistent with current observational limits, constitute the dark matter component in the Universe. The formation and evolution of dark matter and baryonic matter in this PBH-\\${\\textbackslash}Lambda\\$CDM\\textasciitilde Universe are presented. In this picture, PBH DM mini-halos collapse earlier than in standard \\textbackslashLambdaCDM, baryons cool to form stars at \\$z{\\textbackslash}sim15-20\\$, and growing PBHs at these early epochs start to accrete through Bondi capture. The volume emissivity of these sources peaks at \\$z{\\textbackslash}sim20\\$ and rapidly fades at lower redshifts. As a consequence, PBH DM could also provide a channel to make early black hole seeds and naturally account for the origin of an underlying dark matter halo - host galaxy and central black hole connection that manifests as the \\$M_\\{{\\textbackslash}rm bh\\}-{\\textbackslash}sigma\\$ correlation. To estimate the luminosity function and contribution to integrated emission power spectrum from these high-redshift PBH DM halos, we develop a Halo Occupation Distribution (HOD) model. In addition to tracing the star formation and reionizaton history, it permits us to evaluate the Cosmic Infrared and X-ray Backgrounds (CIB and CXB). We find that accretion onto PBHs/AGN successfully accounts for the detected backgrounds and their cross-correlation, with the inclusion of an additional IR stellar emission component. Detection of the deep IR source count distribution by the JWST could reveal the existence of this population of high-redshift star-forming and accreting PBH DM.","urldate":"2021-10-25","journal":"arXiv:2109.08701 [astro-ph]","author":[{"propositions":[],"lastnames":["Cappelluti"],"firstnames":["Nico"],"suffixes":[]},{"propositions":[],"lastnames":["Hasinger"],"firstnames":["Günther"],"suffixes":[]},{"propositions":[],"lastnames":["Natarajan"],"firstnames":["Priyamvada"],"suffixes":[]}],"month":"September","year":"2021","note":"arXiv: 2109.08701","keywords":"Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena","bibtex":"@article{cappelluti_exploring_2021,\n\ttitle = {Exploring the high-redshift {PBH}-\\${\\textbackslash}{Lambda}\\${CDM} {Universe}: early black hole seeding, the first stars and cosmic radiation backgrounds},\n\tshorttitle = {Exploring the high-redshift {PBH}-\\${\\textbackslash}{Lambda}\\${CDM} {Universe}},\n\turl = {http://arxiv.org/abs/2109.08701},\n\tabstract = {We explore the observational implications of a model in which primordial black holes (PBHs) with a broad birth mass function ranging in mass from a fraction of a solar mass to \\${\\textbackslash}sim\\$10\\${\\textasciicircum}6\\$ M\\$\\_\\{{\\textbackslash}odot\\}\\$, consistent with current observational limits, constitute the dark matter component in the Universe. The formation and evolution of dark matter and baryonic matter in this PBH-\\${\\textbackslash}Lambda\\$CDM{\\textasciitilde} Universe are presented. In this picture, PBH DM mini-halos collapse earlier than in standard {\\textbackslash}LambdaCDM, baryons cool to form stars at \\$z{\\textbackslash}sim15-20\\$, and growing PBHs at these early epochs start to accrete through Bondi capture. The volume emissivity of these sources peaks at \\$z{\\textbackslash}sim20\\$ and rapidly fades at lower redshifts. As a consequence, PBH DM could also provide a channel to make early black hole seeds and naturally account for the origin of an underlying dark matter halo - host galaxy and central black hole connection that manifests as the \\$M\\_\\{{\\textbackslash}rm bh\\}-{\\textbackslash}sigma\\$ correlation. To estimate the luminosity function and contribution to integrated emission power spectrum from these high-redshift PBH DM halos, we develop a Halo Occupation Distribution (HOD) model. In addition to tracing the star formation and reionizaton history, it permits us to evaluate the Cosmic Infrared and X-ray Backgrounds (CIB and CXB). We find that accretion onto PBHs/AGN successfully accounts for the detected backgrounds and their cross-correlation, with the inclusion of an additional IR stellar emission component. Detection of the deep IR source count distribution by the JWST could reveal the existence of this population of high-redshift star-forming and accreting PBH DM.},\n\turldate = {2021-10-25},\n\tjournal = {arXiv:2109.08701 [astro-ph]},\n\tauthor = {Cappelluti, Nico and Hasinger, Günther and Natarajan, Priyamvada},\n\tmonth = sep,\n\tyear = {2021},\n\tnote = {arXiv: 2109.08701},\n\tkeywords = {Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena},\n}\n\n","author_short":["Cappelluti, N.","Hasinger, G.","Natarajan, P."],"key":"cappelluti_exploring_2021","id":"cappelluti_exploring_2021","bibbaseid":"cappelluti-hasinger-natarajan-exploringthehighredshiftpbhtextbackslashlambdacdmuniverseearlyblackholeseedingthefirststarsandcosmicradiationbackgrounds-2021","role":"author","urls":{"Paper":"http://arxiv.org/abs/2109.08701"},"keyword":["Astrophysics - Cosmology and Nongalactic Astrophysics","Astrophysics - High Energy Astrophysical Phenomena"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - cosmology and nongalactic astrophysics","astrophysics - high energy astrophysical phenomena"],"search_terms":["exploring","high","redshift","pbh","textbackslash","lambda","cdm","universe","early","black","hole","seeding","first","stars","cosmic","radiation","backgrounds","cappelluti","hasinger","natarajan"],"title":"Exploring the high-redshift PBH-\\${\\textbackslash}{Lambda}\\$CDM Universe: early black hole seeding, the first stars and cosmic radiation backgrounds","year":2021}