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dc.contributor.advisorHeymans, Catherine
dc.contributor.advisorPeacock, John
dc.contributor.advisorTroester, Tilman
dc.contributor.advisorAsgari, Marika
dc.contributor.authorXia, Qianli
dc.date.accessioned2022-01-13T12:12:30Z
dc.date.available2022-01-13T12:12:30Z
dc.date.issued2021-11-27
dc.identifier.urihttps://hdl.handle.net/1842/38410
dc.identifier.urihttp://dx.doi.org/10.7488/era/1675
dc.description.abstractUsing large-scale structure as a probe of cosmology and structure formation has become increasingly popular with the current and upcoming large deep surveys. Guided by numerical simulations and theoretical prediction, analysis of large-scale structure in observations provides complementary information and crosschecks of cosmological parameters from other probes. These analysis also help us to achieve a deeper understanding of structure formation and even the process of galaxy formation. In Chapter 2, I present a weak lensing detection of filamentary structures in the cosmic web, combining data from the Kilo-Degree Survey, the Red Cluster Sequence Lensing Survey and the Canada-France-Hawaii Telescope Lensing Survey. This work has been accepted by Astronomy & Astrophysics as Xia et al. (2020b). In Chapter 3, I describe cosmological analysis using SDSS cluster catalogue and DES Y1 cluster catalogue to constrain f(R) gravity. Our analysis reveals a degeneracy between richness-mass relation and the f(R) halo mass function, and I provide a forecast for constraining f(R) gravity using cluster catalogue from future survey such as the Legacy Survey of Space and Time (LSST). In Chapter 4, I present the first report of spinning filaments measured in the Millennium dark matter cosmological simulations. This work has been published by Monthly Notices of the Royal Astronomical Society as Xia et al. (2020a).en
dc.contributor.sponsorEuropean Research Councilen
dc.language.isoenen
dc.publisherThe University of Edinburghen
dc.relation.hasversion• A gravitational lensing detection of filamentary structures connecting luminous red galaxies Xia et al. (2020)en
dc.relation.hasversionIntergalactic filaments spin Xia et al. (2020, MNRAS)en
dc.relation.hasversionHybrid P`(k): general, unified, non-linear matter power spectrum in redshift space Bose et al. (2019)en
dc.relation.hasversionOn the road to per cent accuracy IV: ReACT - computing the non-linear power spectrum beyond ΛCDM Bose et al. (2020)en
dc.relation.hasversionCosmic Shear Cosmology Beyond 2-Point Statistics: A Combined Peak Count and Correlation Function Analysis of DES-Y1 Harnois-D´eraps et al. (2020)en
dc.relation.hasversionOn the road to percent accuracy V: the non-linear power spectrum beyond ΛCDM with massive neutrinos and baryonic feedback Bose et al. (2021)en
dc.relation.hasversionKiDS-1000 Cosmology: Constraints beyond flat ΛCDM Tr¨oster et al. (2021)en
dc.subjectcosmologyen
dc.subjectastronomyen
dc.subjectastrophysicsen
dc.subjectdark matter distributionen
dc.subjectweak gravitational lensingen
dc.subjectKilo-Degree Surveyen
dc.titleLarge-scale filamentary structure of the Universeen
dc.typeThesis or Dissertationen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD Doctor of Philosophyen


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