rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Tracking Galaxy Growth During the Past 11 Billion Years with Deep Near Infrared Surveys
  name:
    name part: Tomczak, Adam R.
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Tran, Kim-Vy H.
    role:
      role term: thesis advisor.
  name:
    name part: Papovich, Casey
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2015
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Using observations from the FourStar Galaxy Evolution Survey (ZFOURGE), we obtain the deepest measurements to date of the galaxy stellar mass function (SMF) at z < 3. With these data, we find evidence for a steepening of the slope at the low-mass end of the SMF at z ⁹́Þ 2, a feature that had only been identified at z ⁹́Þ 1. These measurements also allow us for the first time to observe a rapid buildup of low-mass quiescent galaxies and help to constrain the growth rates of galaxies. We next explore star-formation histories (SFHs) of galaxies based on the evolution of the correlation between the star-formation rate and stellar mass of galaxies (SFR⁸́₂M⁸́₇) and compare to the buildup of stellar mass predicted from the evolution of the SMF. By integrating along the SFR⁸́₂M⁸́₇ sequence we generate differential SFHs and estimate stellar mass-growth histories. We find that these integrated SFHs are in broad qualitative agreement with the SMF, but that they do disagree in detail. At early times the SFHs suggest mass-growth rates that are as much as 0.5 dex higher than inferred from the stellar mass function. Lastly, we look into the prevalence of a possible source of feedback preventing star-formation using mid-IR data from the Spitzer Space Telescope with established color selection criteria to identify galaxies hosting active galactic nuclei (AGN). Of the 949 cluster galaxies in our IR-detected sample we identify 12 that are consistent with hosting AGN. We thus measure the fraction of cluster galaxies that host an IR-AGN for a magnitude-limited subsample (fIR⁸́₂AGN) to be ⁹́⁸ 0.6% with a strong upper limit of 3.4% at the 99% confidence level at z < 1. Our results suggest that fIR⁸́₂AGN in massive galaxy clusters is not strongly correlated with star formation at z < 1, and that IR-AGN have a more prominent role at z > 1. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155705
  note: by Adam R. Tomczak.
  note: "Major Subject: Physics"
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2015 http://hdl.handle.net/1969.1/155705
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major physics
  subject:
    topic: Galaxy formation
  subject:
    topic: Galaxy evolution
  subject:
    topic: Star formation
  subject:
    topic: Stellar mass
  subject:
    topic: Active galactic nuclei
  identifier: http://hdl.handle.net/1969.1/155705
  record info:
    record content source: TXA
    record creation date: 161117
    record change date: 20170926150729.0
    record identifier: in00003718783
    language of cataloging:
      language term: eng