Constraints on alternative cosmological models from clustering and redshift-space distortions

In this Thesis I have exploited the most recent observational data from CMB, BAO and growth rate of LSS as well as N-body simulations of modified gravity, to investigate the spatial properties of the large scale structure of Universe by constraining cosmological parameters in the framework of altern...

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Autores:
García Farieta, Jorge Enrique
Tipo de recurso:
Fecha de publicación:
2019
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
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OAI Identifier:
oai:repositorio.unal.edu.co:unal/77283
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/77283
http://bdigital.unal.edu.co/74912/
Palabra clave:
Cosmologías alternativas
Cosmología moderna
Modelos dinámicos de energía oscura
Mapas de galaxias
Clustering
Redshift
Dynamical Dark Energy models
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License
http://purl.org/coar/access_right/c_abf2
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spelling Casas Miranda, RigobertoGarcía Farieta, Jorge Enrique74c66c8f-6e2f-4aa4-b1cb-802689a2582d3002020-03-30T06:45:09Z2020-03-30T06:45:09Z2019https://repositorio.unal.edu.co/handle/unal/77283http://bdigital.unal.edu.co/74912/In this Thesis I have exploited the most recent observational data from CMB, BAO and growth rate of LSS as well as N-body simulations of modified gravity, to investigate the spatial properties of the large scale structure of Universe by constraining cosmological parameters in the framework of alternative cosmologies. The research is focused on clustering and redshift space distortions as cosmological probe. In this context I have studied the degeneracies between modified gravity and massive neutrinos as well as the robustness of the methodology for constraining the linear growth rate including realistic systematics, implementing suitable parametrizations of the redshift-space distortions in the perspective of current and future galaxy surveys.Resumen: En esta tesis se han utilizado los datos observacionales más recientes de CMB, BAO y tasa de crecimiento de LSS al igual que simulaciones tipo N-body de gravedad modificada, con el fin de investigar las propiedades espaciales de la estructura a gran escala del Universo a través de la restricción de parámetros cosmológicos en el marco de cosmologías alternativas. La investigación se centra en el clustering y las distorsiones del espacio de redshift como prueba cosmológica. En este contexto se ha estudiado la degenerancia de modelos de gravedad modificada y neutrinos masivos como también su robustez incluyendo errores sistemáticos realistas, e implementando parametrizaciones adecuadas de las distorsiones del espacio de redshift teniendo en cuenta los mapas de galaxias actuales y futuros.Sommario: In questa tesi sono stati sfruttati i dati osservativi più recenti di CMB, BAO e tasso di crescita di LSS, nonché simulazioni di N- body di gravità modificata per studiare le proprietà spaziali della struttura a grande scala dell’Universo vincolando i parametri cosmologici nel quadro di cosmologie alternative. La ricerca si concentra sul clustering e sulle distorsioni nello spazio dei redshift come test cosmologico, in questo contesto ho studiato le degenerazioni nella gravità modificata e nei neutrini massivi, nonché la loro robustezza, compresa i gli errori sistematici, e anche sono stati implementati parametrizzazioni delle distorsioni nello spazio dei redshift nella prospettiva di galaxy surveys attuali e future.Doctoradoapplication/pdfUniversidad Nacional de Colombia Sede Bogotá Facultad de Ciencias Departamento de Física FísicaFísica5 Ciencias naturales y matemáticas / Science52 Astronomía y ciencias afines / Astronomy53 Física / PhysicsGarcía Farieta, Jorge Enrique (2019) Constraints on alternative cosmological models from clustering and redshift-space distortions. Doctorado thesis, Universidad Nacional de Colombia - Sede Bogotá.Constraints on alternative cosmological models from clustering and redshift-space distortionsTrabajo de grado - Pregradoinfo:eu-repo/semantics/doctoralThesishttp://purl.org/coar/version/c_b1a7d7d4d402bccehttp://purl.org/coar/resource_type/c_db06Cosmologías alternativasCosmología modernaModelos dinámicos de energía oscuraMapas de galaxiasClusteringRedshiftDynamical Dark Energy modelshttp://purl.org/coar/access_right/c_abf2ORIGINALPhD_Thesis-UNAL-Jorge_Garcia_Farieta.pdfapplication/pdf20508549https://repositorio.unal.edu.co/bitstream/unal/77283/1/PhD_Thesis-UNAL-Jorge_Garcia_Farieta.pdffb75a0c1ea2cc13f6dfdb9a62601f7ccMD51THUMBNAILPhD_Thesis-UNAL-Jorge_Garcia_Farieta.pdf.jpgPhD_Thesis-UNAL-Jorge_Garcia_Farieta.pdf.jpgGenerated Thumbnailimage/jpeg5182https://repositorio.unal.edu.co/bitstream/unal/77283/2/PhD_Thesis-UNAL-Jorge_Garcia_Farieta.pdf.jpgf98f8d86269b2d87aeb3efff3e806ce4MD52unal/77283oai:repositorio.unal.edu.co:unal/772832024-07-17 23:13:12.042Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Constraints on alternative cosmological models from clustering and redshift-space distortions
title Constraints on alternative cosmological models from clustering and redshift-space distortions
spellingShingle Constraints on alternative cosmological models from clustering and redshift-space distortions
Cosmologías alternativas
Cosmología moderna
Modelos dinámicos de energía oscura
Mapas de galaxias
Clustering
Redshift
Dynamical Dark Energy models
title_short Constraints on alternative cosmological models from clustering and redshift-space distortions
title_full Constraints on alternative cosmological models from clustering and redshift-space distortions
title_fullStr Constraints on alternative cosmological models from clustering and redshift-space distortions
title_full_unstemmed Constraints on alternative cosmological models from clustering and redshift-space distortions
title_sort Constraints on alternative cosmological models from clustering and redshift-space distortions
dc.creator.fl_str_mv García Farieta, Jorge Enrique
dc.contributor.author.spa.fl_str_mv García Farieta, Jorge Enrique
dc.contributor.spa.fl_str_mv Casas Miranda, Rigoberto
dc.subject.proposal.spa.fl_str_mv Cosmologías alternativas
Cosmología moderna
Modelos dinámicos de energía oscura
Mapas de galaxias
Clustering
Redshift
Dynamical Dark Energy models
topic Cosmologías alternativas
Cosmología moderna
Modelos dinámicos de energía oscura
Mapas de galaxias
Clustering
Redshift
Dynamical Dark Energy models
description In this Thesis I have exploited the most recent observational data from CMB, BAO and growth rate of LSS as well as N-body simulations of modified gravity, to investigate the spatial properties of the large scale structure of Universe by constraining cosmological parameters in the framework of alternative cosmologies. The research is focused on clustering and redshift space distortions as cosmological probe. In this context I have studied the degeneracies between modified gravity and massive neutrinos as well as the robustness of the methodology for constraining the linear growth rate including realistic systematics, implementing suitable parametrizations of the redshift-space distortions in the perspective of current and future galaxy surveys.
publishDate 2019
dc.date.issued.spa.fl_str_mv 2019
dc.date.accessioned.spa.fl_str_mv 2020-03-30T06:45:09Z
dc.date.available.spa.fl_str_mv 2020-03-30T06:45:09Z
dc.type.spa.fl_str_mv Trabajo de grado - Pregrado
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_b1a7d7d4d402bcce
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dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/74912/
url https://repositorio.unal.edu.co/handle/unal/77283
http://bdigital.unal.edu.co/74912/
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Sede Bogotá Facultad de Ciencias Departamento de Física Física
Física
dc.relation.haspart.spa.fl_str_mv 5 Ciencias naturales y matemáticas / Science
52 Astronomía y ciencias afines / Astronomy
53 Física / Physics
dc.relation.references.spa.fl_str_mv García Farieta, Jorge Enrique (2019) Constraints on alternative cosmological models from clustering and redshift-space distortions. Doctorado thesis, Universidad Nacional de Colombia - Sede Bogotá.
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institution Universidad Nacional de Colombia
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repository.name.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
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