Large-Scale Filaments From Weak Lensing
dc.contributor.author | Epps, Seth | |
dc.date.accessioned | 2015-10-01 17:59:48 (GMT) | |
dc.date.available | 2015-10-01 17:59:48 (GMT) | |
dc.date.issued | 2015-10-01 | |
dc.date.submitted | 2015 | |
dc.identifier.uri | http://hdl.handle.net/10012/9780 | |
dc.description.abstract | In the context of non-linear structure formation, a web of dark filaments are expected to intersect the high density regions of the universe, where groups and clusters of galaxies will be forming. In this work we have developed a method for stacking the weak lensing signal of an ensemble of filaments between groups and clusters of galaxies. We detect a the weak lensing signal from stacked filaments between SDSS BOSS luminous red galaxies with the CFHTLenS data at the 5σ level, finding a mass of (1.6 ± 0.3) × 1013M⊙. Two methods of isolating the filament signal are presented: the method of non-physical pair subtraction, and the method of outside region subtraction. This signal is compared with the three-point galaxy-galaxy-convergence correlation function, as developed in Clampitt et al. (2014), yielding reasonably good agreement. | en |
dc.language.iso | en | en |
dc.publisher | University of Waterloo | |
dc.subject | Physics | en |
dc.subject | Cosmology | en |
dc.subject | Large Scale Structure | en |
dc.title | Large-Scale Filaments From Weak Lensing | en |
dc.type | Master Thesis | en |
dc.pending | false | |
dc.subject.program | Physics | en |
uws-etd.degree.department | Physics and Astronomy | en |
uws-etd.degree | Master of Science | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Unreviewed | en |
uws.scholarLevel | Graduate | en |