JOONGBU UNIVERSITY LIBRARY

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Self-Interacting Dark Matter Subhalos and Dwarf Satellite Galaxies: Evolution and Diversity.

Title/Author: Self-Interacting Dark Matter Subhalos and Dwarf Satellite Galaxies: Evolution and Diversity.

General Note: Source: Dissertations Abstracts International, Volume: 86-04, Section: B.

Abstracts/Etc: 요약Self-interacting dark matter (SIDM) cosmologies admit an enormous diversity of dark matter (DM) halo density profiles, from low-density cores to high-density core-collapsed cusps. The possibility of the growth of high central density in low-mass halos, accelerated if halos are subhalos of larger systems, has intriguing consequences for small-scale observables such as substructure lensing, dwarf galaxies and stellar streams. However, following the evolution of low-mass subhalos in their host systems is computationally expensive, sometimes even prohibitive, with traditional N-body cosmological simulations. In this thesis work, we are thus motivated to develop a series of hybrid methods for simulations of low-mass subhalos, from core-creation to core-collapse (or complete dissolution in the host), also with the orbital effects from the host halo consistently captured. This thesis consists of three parts: in the first chapter, we detail our hybrid method tracing individual SIDM subhalos; in the second chapter, we use the hybrid method to simulate a realistic population of subhalos, also with a new hierarchical framework to further reduce the computational cost; in the third chapter, we populate individual SIDM subhalos with galaxies in the initial condition, and study the evolution of stellar properties in response to SIDM halo evolution and orbital effects.

Material
Reg No.	Call No.	Location	Status	Lend Info
TQ0034828	T	원문자료	열람가능/출력가능	열람가능/출력가능 마이폴더 부재도서신고

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