자료유형  

 학위논문

Control Number  

0017160785

International Standard Book Number  

9798382782966

Dewey Decimal Classification Number  

523

Main Entry-Personal Name  

Mallaby-Kay, Maya.

Publication, Distribution, etc. (Imprint  

[S.l.] : The University of Chicago., 2024

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2024

Physical Description  

153 p.

General Note  

Source: Dissertations Abstracts International, Volume: 85-12, Section: B.

General Note  

Advisor: McMahon, Jeff.

Dissertation Note  

Thesis (Ph.D.)--The University of Chicago, 2024.

Summary, Etc.  

요약As light travels from the furthest reaches of our universe to our telescopes, it encounters clusters of galaxies, hot gas, and the overarching large-scale structure of our universe. These encounters alter the paths and energy levels of the photons, enabling us to use this light from the Cosmic Microwave Background (CMB) to learn about the earliest stages of our universe and the large-scale structure we observe today. The Atacama Cosmology Telescope (ACT) was a telescope in Chile that observed the CMB from 2008 to 2022. Observations from ACT, combined with observations from complementary surveys, can be used to probe the growth and structure of our universe.This work presents a detailed overview of two major data releases from ACT, along with tools developed to allow the community to use these data products. I also present a cross-correlation analysis of ACT, DES, and BOSS data that uses a combination of the kinematic and thermal Sunyaev-Zel'dovich effects to probe the density, pressure, and temperature profiles of galaxy clusters. I then present work that combines ACT and BOSS data to probe diffuse filaments that make up our cosmic web. To do so, I measure the radial profiles of filaments found using the DisPerSE algorithm and BOSS data in Compton-y and lensing maps produced by the ACT collaboration.Lastly, I present work dedicated to generating maps of CMB observables derived from simulations of large-scale structures. We rely on simulations to deepen our understanding of physical processes, validate our analytical pipelines, forecast our errors, and build up our understanding of our measurements.

Subject Added Entry-Topical Term  

Astrophysics.

Subject Added Entry-Topical Term  

Astronomy.

Index Term-Uncontrolled  

Cosmology

Index Term-Uncontrolled  

Large-scale structure

Index Term-Uncontrolled  

Cosmic Microwave Background

Index Term-Uncontrolled  

Photons

Added Entry-Corporate Name  

The University of Chicago Astronomy and Astrophysics

Host Item Entry  

Dissertations Abstracts International. 85-12B.

Electronic Location and Access  

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Control Number  

joongbu:657941