Neutrino cosmology and large scale structure
<p>The topic of this thesis is neutrino cosmology and large scale structure. First, we introduce the concepts needed for the presentation in the following chapters. </p> <p>We describe the role that neutrinos play in particle physics and cosmology, and the current status of the fi...
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| Format: | Thesis |
| Language: | English |
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2019
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| _version_ | 1826316344175362048 |
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| author | Lorenz, CS |
| author2 | Ferreira, P |
| author_facet | Ferreira, P Lorenz, CS |
| author_sort | Lorenz, CS |
| collection | OXFORD |
| description | <p>The topic of this thesis is neutrino cosmology and large scale structure. First, we introduce the concepts needed for the presentation in the following chapters. </p>
<p>We describe the role that neutrinos play in particle physics and cosmology, and the current status of the field. We also explain the cosmological observations that are commonly used to measure properties of neutrino particles.</p>
<p>Next, we present studies of the model-dependence of cosmological neutrino mass constraints. In particular, we focus on two phenomenological parameterisations of time-varying dark energy (early dark energy and barotropic dark energy) that can exhibit degeneracies with the cosmic neutrino background over extended periods of cosmic time. We show how the combination of multiple probes across cosmic time can help to distinguish between the two components.</p>
<p>Moreover, we discuss how neutrino mass constraints can change when neutrino masses are generated late in the Universe, and how current tensions between low- and high-redshift cosmological data might be affected from this.</p>
<p>Then we discuss whether lensing magnification and other relativistic effects that affect the galaxy distribution contain additional information about dark energy and neutrino parameters, and how much parameter constraints can be biased when these effects are neglected.</p>
<p>We conclude by describing current fields of active research in cosmology, and how the work presented in this thesis contributes to them.</p> |
| first_indexed | 2024-03-06T20:58:18Z |
| format | Thesis |
| id | oxford-uuid:3a055121-2a10-4c01-aa34-e789459df6de |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-12-09T03:43:31Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | oxford-uuid:3a055121-2a10-4c01-aa34-e789459df6de2024-12-07T14:38:10ZNeutrino cosmology and large scale structureThesishttp://purl.org/coar/resource_type/c_db06uuid:3a055121-2a10-4c01-aa34-e789459df6deNeutrino physicsCosmologyEnglishORA Deposit2019Lorenz, CSFerreira, PDevriendt, JCalabrese, EBonvin, CAlonso, D<p>The topic of this thesis is neutrino cosmology and large scale structure. First, we introduce the concepts needed for the presentation in the following chapters. </p> <p>We describe the role that neutrinos play in particle physics and cosmology, and the current status of the field. We also explain the cosmological observations that are commonly used to measure properties of neutrino particles.</p> <p>Next, we present studies of the model-dependence of cosmological neutrino mass constraints. In particular, we focus on two phenomenological parameterisations of time-varying dark energy (early dark energy and barotropic dark energy) that can exhibit degeneracies with the cosmic neutrino background over extended periods of cosmic time. We show how the combination of multiple probes across cosmic time can help to distinguish between the two components.</p> <p>Moreover, we discuss how neutrino mass constraints can change when neutrino masses are generated late in the Universe, and how current tensions between low- and high-redshift cosmological data might be affected from this.</p> <p>Then we discuss whether lensing magnification and other relativistic effects that affect the galaxy distribution contain additional information about dark energy and neutrino parameters, and how much parameter constraints can be biased when these effects are neglected.</p> <p>We conclude by describing current fields of active research in cosmology, and how the work presented in this thesis contributes to them.</p> |
| spellingShingle | Neutrino physics Cosmology Lorenz, CS Neutrino cosmology and large scale structure |
| title | Neutrino cosmology and large scale structure |
| title_full | Neutrino cosmology and large scale structure |
| title_fullStr | Neutrino cosmology and large scale structure |
| title_full_unstemmed | Neutrino cosmology and large scale structure |
| title_short | Neutrino cosmology and large scale structure |
| title_sort | neutrino cosmology and large scale structure |
| topic | Neutrino physics Cosmology |
| work_keys_str_mv | AT lorenzcs neutrinocosmologyandlargescalestructure |