RUcore: Rutgers University Community Repository
The evolution of neutral gas in star-forming galaxies across cosmic time
Descriptive
TitleInfo
Title
The evolution of neutral gas in star-forming galaxies across cosmic time
Name
(type = personal)
NamePart
(type = family)
Berry
NamePart
(type = given)
Michael James
NamePart
(type = date)
1986-
DisplayForm
Michael Berry
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Somerville
NamePart
(type = given)
Rachel
DisplayForm
Rachel Somerville
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Gawiser
NamePart
(type = given)
Eric
DisplayForm
Eric Gawiser
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Hughes
NamePart
(type = given)
Jack
DisplayForm
Jack Hughes
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Kiryukhin
NamePart
(type = given)
Valerie
DisplayForm
Valerie Kiryukhin
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Maller
NamePart
(type = given)
Ari
DisplayForm
Ari Maller
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
outside member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm
(authority = RULIB)
school
TypeOfResource
Text
Genre
(authority = marcgt)
theses
OriginInfo
DateCreated
(qualifier = exact)
2014
DateOther
(qualifier = exact);
(type = degree)
2014-05
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
We study the evolution of cold gas in distant galaxies by analyzing observations, semi-analytic models (SAMs), and simulations of star-forming galaxies (SFGs) and damped Lyα absorption systems (DLAs). First, we present individual and composite rest-frame ultraviolet (UV) spectra for 81 SFGs where we study the relations among Lyα emission, low and high ionization absorption strength, rest-ultraviolet continuum slope, redshift, and velocity offset. We find that galaxies with R < 25.5 and W_Lyα > 20A have bluer UV continua, weaker low-ionization interstellar absorption lines, weaker C IV absorption, and stronger Si II nebular emission than those with W_Lyα < 20A. Next, we present our range of models which include “standard,” “extended,” and merger-based disks as well as a metallicity-dependent and pressure-based prescription for partitioning cold gas into atomic and molecular components. Using these models, we “observe” a catalog of mock DLAs, which we compare to observations. We find that extended disk models reproduce quite well the column density distribution of absorbers over the column density range 19 < log N(HI) < 22.5, the observed line density of DLAs, Hi gas density, the ∆v distribution in the redshift range 2 < z < 3.5, and the evolution of DLA metallicity with redshift. Using these models, we characterize the properties of DLA host galaxies and compare them to model SFGs “observed” in the SAMs. We show that DLA host galaxies exhibit a broad range of galaxy properties spanning several decades in stellar mass, star formation rate, and luminosity and fall upon common galaxy scaling relations. Finally, we analyze the radial profiles and evolution of 15 galaxies in numerical simulations and compare them to predictions from the SAMs. Galaxies’ cold gas and stellar components are moderately well-fit by exponential profiles, although both gas partitioning recipes predict more molecular gas and less star formation than is observed in the numerical simulations. Nonetheless, both types of simulations predict similar evolution in galaxy properties from z = 2 to z = 0.
Subject
(authority = RUETD)
Topic
Physics and Astronomy
Subject
(authority = ETD-LCSH)
Topic
Galaxies--Formation
Subject
(authority = ETD-LCSH)
Topic
Gases--Analysis
RelatedItem
(type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
Identifier
ETD_5442
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
xiii, 227 p. : ill.
Note
(type = degree)
Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Michael James Berry
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Location
PhysicalLocation
(authority = marcorg);
(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T35H7DJM
Genre
(authority = ExL-Esploro)
ETD doctoral
Back to the top
Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Berry
GivenName
Michael
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2014-04-10 18:40:53
AssociatedEntity
Name
Michael Berry
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
Back to the top
Technical
RULTechMD
(ID = TECHNICAL1)
ContentModel
ETD
OperatingSystem
(VERSION = 5.1)
windows xp
Back to the top
Statistical Profile