2026-09-19T19:20:33Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/102875 2023-07-11 col_2142_5131 col_2142_14807 com_2142_5130 com_2142_14806 com_2142_8903

Dalal, Neal Fields, Brian Ricker, Paul Kemball, Athol Chue, Chun Yin Ricky 2019-02-08T18:39:35Z 2019-02-08T18:39:35Z 2021-02-09T10:15:30Z 2018-07-19 2018-12 This is a study of how the distribution and properties of dark matter halos can be utilized as probes of fundamental questions in modern cosmology. Spatial clustering of dark matter halo carry a wealth of information regarding its evolution history and environment. In particular, I study halo assembly bias, which refers to the assembly history dependence of spatial clustering for dark matter halos at fixed mass, using observational and cosmological simulation data. Understanding and modeling assembly bias provides insight into the context of hierarchical structure formation theory. Apart from spatial clustering I also study shapes of dark matter halos and how to measure them using three-point galaxy statistics, which itself serves as an astrophysical constraint on properties of dark matter. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-12-01 The student, Chun Yin Ricky Chue, accepted the attached license on 2018-07-17 at 01:19. The student, Chun Yin Ricky Chue, submitted this Dissertation for approval on 2018-07-17 at 01:24. This Dissertation was approved for publication on 2018-07-19 at 09:04. DSpace SAF Submission Ingestion Package generated from Vireo submission #12897 on 2019-02-08 at 11:37:25 Made available in DSpace on 2019-02-08T18:39:35Z (GMT). No. of bitstreams: 3 CHUE-DISSERTATION-2018.pdf: 2080041 bytes, checksum: f641d06e905886be996918be79e454f7 (MD5) LICENSE.txt: 4216 bytes, checksum: 31cd07efa6dc50f147efe01573fae1e5 (MD5) PROQUEST_LICENSE.txt: 4562 bytes, checksum: 68a66d204014c01f74ea59ce7d155b1b (MD5) Previous issue date: 2018-07-19 Embargo set by: Seth Robbins for item 109901 Lift date: 2021-02-08T18:40:00Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 109901 Lift date: 2021-02-08T18:42:23Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 109901 Lift date: 2021-02-08T18:43:54Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 109901 Lift date: 2021-02-08T18:44:50Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 109901 on 2021-02-09T10:15:30Z. application/pdf http://hdl.handle.net/2142/102875 en c 2018 by Chun Yin Ricky Chue. All rights reserved. Dark matter halo The structure and spatial distribution of dark matter halos text text Astronomy Astronomy University of Illinois at Urbana-Champaign Dissertation Ph.D.