The structure and spatial distribution of dark matter halos

Chue, Chun Yin Ricky

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https://hdl.handle.net/2142/102875 Copy

Description

Title

The structure and spatial distribution of dark matter halos

Author(s)

Chue, Chun Yin Ricky

Issue Date

2018-07-19

Director of Research (if dissertation) or Advisor (if thesis)

Dalal, Neal

Doctoral Committee Chair(s)

Fields, Brian

Committee Member(s)

• Ricker, Paul
• Kemball, Athol

Department of Study

Astronomy

Discipline

Astronomy

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Date of Ingest

2019-02-08T18:39:35Z

Keyword(s)

Dark matter halo

Abstract

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.

Graduation Semester

2018-12

Type of Resource

text

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http://hdl.handle.net/2142/102875

Copyright and License Information

c 2018 by Chun Yin Ricky Chue. All rights reserved.

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