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Towards the detection of the earliest supermassive black holes with the future radio and X-ray surveys

2021-05Doctoral thesis Open access
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datacite.subject.fosCiências Naturais::Ciências Físicaspt_PT
dc.contributor.advisorAfonso, José
dc.contributor.advisorMatute, Israel
dc.contributor.advisorMessias, Hugo
dc.contributor.authorAmarantidis, Stergios
dc.date.accessioned2021-12-13T15:49:23Z
dc.date.available2021-12-13T15:49:23Z
dc.date.issued2021-05
dc.date.submitted2020-12
dc.description.abstractOne of the fundamental topics in extragalactic astronomy concerns the formation and evolution of galaxies through cosmic time. A common approach for shedding more light on this subject is the exploration of the young stages of the Universe, when the first stars and Super Massive Black Holes (SMBHs) were formed and therefore started ionising the intergalactic medium. This Epoch of Re-ionisation (EoR) is considered one of the key areas of extragalactic research that only recently we were able to explore, mostly due to the growing number of identified high-redshift Active Galactic Nuclei (AGNs). In this thesis, we focus on the exploration of the EoR and the SMBH/AGN population, both from the theoretical and observational point of view. Regarding the former, we employ eight state-of-the-art cosmological galaxy formation and evolution models with the main goal of exploring their predictions regarding the number of AGNs that the current and next surveys would observe at the EoR. Furthermore, we combine one of these models with a software that simulates the observations from X-ray telescopes, generating a future possible survey of 1 deg2 using the next-generation telescope, Athena. Having these predictions in hand, the project advances by trying to identify high-redshift radio galaxies in deep and well-studied surveys. In this regard, we explore two selection criteria that are widely used and were successful in the past in detecting high-redshift galaxies, aiming to provide further evidence regarding their efficiency of studying the EoR.pt_PT
dc.identifier.tid101580789pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/50405
dc.language.isoengpt_PT
dc.relationInstitute of Astrophysics and Space Sciences
dc.relationInstitute of Astrophysics and Space Sciences
dc.relationInstitute of Astrophysics and Space Sciences
dc.subjectradio galáxiaspt_PT
dc.subjectburacos negros supermassivospt_PT
dc.subjectgaláxias a alto redshiftpt_PT
dc.subjectépoca de re-ionizaçãopt_PT
dc.subjectradio-surveyspt_PT
dc.subjectradio-galaxiespt_PT
dc.subjectsuper massive black holespt_PT
dc.subjecthigh-redshift galaxiespt_PT
dc.subjectepoch of re-ionisationpt_PT
dc.subjectradio-surveyspt_PT
dc.titleTowards the detection of the earliest supermassive black holes with the future radio and X-ray surveyspt_PT
dc.typedoctoral thesis
dspace.entity.typePublication
oaire.awardTitleInstitute of Astrophysics and Space Sciences
oaire.awardTitleInstitute of Astrophysics and Space Sciences
oaire.awardTitleInstitute of Astrophysics and Space Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-AST%2F29245%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FFIS%2F04434%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04434%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04434%2F2020/PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.identifier.ciencia-idEF1D-212C-4114
person.identifier.orcid0000-0001-7948-5714
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typedoctoralThesispt_PT
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relation.isAuthorOfPublication.latestForDiscovery28e62874-bb6e-4b69-a7db-2d403d9e1b39
relation.isProjectOfPublication1ac3e3f0-8be4-46db-9e50-e61e18376f5d
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thesis.degree.nameTese de doutoramento, Astronomia e Astrofísica, Universidade de Lisboa, Faculdade de Ciências, 2021pt_PT

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