The very first Pop III stars and their relation to bright z~6 quasars

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dc.creatorTrenti, M.
dc.creatorStiavelli, M.
dc.date2007-10-04
dc.date.accessioned2026-07-07T11:19:46Z
dc.date.available2026-07-07T11:19:46Z
dc.descriptionWe discuss the link between dark matter halos hosting the first PopIII stars formed at redshift z > 40 and the rare, massive, halos that are generally considered to host bright z~6 quasars. We show that within the typical volume occupied by one bright high-z QSO the remnants of the first several thousands PopIII stars formed do not end up in the most massive halos at z~6, but rather live in a large variety of environments. The black hole seeds planted by these very first PopIII stars can easily grow to M > 10^{9.5} Msun by z=6 assuming Eddington accretion with radiative efficiency epsilon~0.1. Therefore quenching of the accretion is crucial to avoid an overabundance of supermassive black holes. We implement a simple feedback model for the growth of the seeds planted by PopIII stars and obtain a z~6 BH mass function consistent with the observed QSO luminosity function.
dc.description5 pages, to appear in the proceedings of "First Stars III", AIP Conference Series, T. Abel, A. Heger and B. O'Shea eds
dc.identifierhttps://arxiv.org/abs/0710.1032
dc.identifierhttp://arxiv.org/abs/0710.1032
dc.identifierAIPConf.Proc.990:494-498,2008
dc.identifierdoi:10.1063/1.2905670
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193801
dc.subjectAstrophysics
dc.titleThe very first Pop III stars and their relation to bright z~6 quasars
dc.typetext

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