Primordial black hole abundance from the power spectrum of cosmological perturbations

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dc.contributor.advisorGarriga Torres, Jaume
dc.contributor.authorMarrone, Matteo Gabriel
dc.date.accessioned2025-09-10T13:59:30Z
dc.date.available2025-09-10T13:59:30Z
dc.date.issued2025-06
dc.descriptionTreballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2025, Tutor: Jaume Garriga Torresca
dc.description.abstractA random field of cosmological perturbations may have rare high peaks which evolve non-linearly after they cross the horizon during the radiation dominated era, forming primordial black holes (PBH). Using recent results for the statistics of large initial overdensities, we will consider a family of well motivated profiles for such overdensities, determining the critical amplitude which causes them to collapse gravitationally. This is relevant for determining the abundance of PBH for a given primordial power spectrum of cosmological perturbations.ca
dc.format.extent6 p.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttps://hdl.handle.net/2445/223102
dc.language.isoengca
dc.rightscc-by-nc-nd (c) Marrone, 2025
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.sourceTreballs Finals de Grau (TFG) - Física
dc.subject.classificationCosmologiacat
dc.subject.classificationCol·lapse gravitacionalcat
dc.subject.classificationTreballs de fi de graucat
dc.subject.otherCosmologyeng
dc.subject.otherGravitational collapseeng
dc.subject.otherBachelor's theseseng
dc.titlePrimordial black hole abundance from the power spectrum of cosmological perturbationseng
dc.typeinfo:eu-repo/semantics/bachelorThesisca

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