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A Multi-Faceted Study of Three Forms...
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Jones, Gareth Christopher.
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A Multi-Faceted Study of Three Forms of Galactic Formation in the Early Universe.
Record Type:
Electronic resources : Monograph/item
Title/Author:
A Multi-Faceted Study of Three Forms of Galactic Formation in the Early Universe./
Author:
Jones, Gareth Christopher.
Published:
Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:
125 p.
Notes:
Source: Dissertations Abstracts International, Volume: 79-10, Section: B.
Contained By:
Dissertations Abstracts International79-10B.
Subject:
Astrophysics. -
Online resource:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10743207
ISBN:
9780355679441
A Multi-Faceted Study of Three Forms of Galactic Formation in the Early Universe.
Jones, Gareth Christopher.
A Multi-Faceted Study of Three Forms of Galactic Formation in the Early Universe.
- Ann Arbor : ProQuest Dissertations & Theses, 2018 - 125 p.
Source: Dissertations Abstracts International, Volume: 79-10, Section: B.
Thesis (Ph.D.)--New Mexico Institute of Mining and Technology, 2018.
This item must not be sold to any third party vendors.
While observations of the early universe have focused on bright, highly starbursting galaxies, star formation activity in the early universe was dominated by main sequence galaxies. Observations of the former group have been accumulating for decades, but the latter are only recently observable using modern instruments. In this work, we apply the Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) to observe specific examples of each galactic class, in order to explore three modes of galaxy formation: smooth accretion, satellite accretion, and massive mergers. Using the molecular gas tracer CO and a broad set of continuum measurements, we characterize the gas mass and distribution, star formation, and dust temperature of the two archetypal massively merging Hyper-Luminous IR Galaxies (HyLIRGs) BRI1202-0725 & BRI1335-0417. We then examine the [C II] emission of the Lyman-Break Galaxy (LBG) WMH5, which shows two infalling gas clouds, implying ongoing formation via filamentary accretion. Finally, we apply a classical suite of dynamical characterization tools to [C II] observations of three MS galaxies and three starbursts, resulting in rotation curves and dynamical masses for each. By examining each of these sources in detail, we find that galaxies in the early (i.e., z > 4) universe formed via a broad range of interactions, ranging from cold-mode accretion to major mergers. As these instruments continue observing, and with the future advent of JWST and perhaps the ngVLA, stronger constraints may be placed on the behavior of the galaxies in the epoch of initial galaxy formation.
ISBN: 9780355679441Subjects--Topical Terms:
535904
Astrophysics.
A Multi-Faceted Study of Three Forms of Galactic Formation in the Early Universe.
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While observations of the early universe have focused on bright, highly starbursting galaxies, star formation activity in the early universe was dominated by main sequence galaxies. Observations of the former group have been accumulating for decades, but the latter are only recently observable using modern instruments. In this work, we apply the Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) to observe specific examples of each galactic class, in order to explore three modes of galaxy formation: smooth accretion, satellite accretion, and massive mergers. Using the molecular gas tracer CO and a broad set of continuum measurements, we characterize the gas mass and distribution, star formation, and dust temperature of the two archetypal massively merging Hyper-Luminous IR Galaxies (HyLIRGs) BRI1202-0725 & BRI1335-0417. We then examine the [C II] emission of the Lyman-Break Galaxy (LBG) WMH5, which shows two infalling gas clouds, implying ongoing formation via filamentary accretion. Finally, we apply a classical suite of dynamical characterization tools to [C II] observations of three MS galaxies and three starbursts, resulting in rotation curves and dynamical masses for each. By examining each of these sources in detail, we find that galaxies in the early (i.e., z > 4) universe formed via a broad range of interactions, ranging from cold-mode accretion to major mergers. As these instruments continue observing, and with the future advent of JWST and perhaps the ngVLA, stronger constraints may be placed on the behavior of the galaxies in the epoch of initial galaxy formation.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10743207
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