articleThe Astrophysical JournalMay 19, 2014BRONZE OA

3D-HST+CANDELS: THE EVOLUTION OF THE GALAXY SIZE-MASS DISTRIBUTION SINCE z = 3

AVA. van der WelMFM. FranxPGP. G. van DokkumRER. E. SkeltonIGI. G. Momcheva

Max Planck Institute for Astronomy · Leiden University · +17 more institutions

Indexed inarxivcrossrefdoaj

Abstract

Spectroscopic+photometric redshifts, stellar mass estimates, and rest-frame colors from the 3D-HST survey are combined with structural parameter measurements from CANDELS imaging to determine the galaxy size-mass distribution over the redshift range 0 < z < 3. Separating early- and late-type galaxies on the basis of star-formation activity, we confirm that early-type galaxies are on average smaller than late-type galaxies at all redshifts, and we find a significantly different rate of average size evolution at fixed galaxy mass, with fast evolution for the early-type population, R eff(1 + z) -1.48, and moderate evolution for the late-type population, R eff(1 + z)-0.75. The large sample size and dynamic…

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Authors

30
  • AV
    A. van der WelCorresponding

    Max Planck Institute for Astronomy

  • MF
    M. Franx

    Leiden University

  • PG
    P. G. van Dokkum

    Yale University

  • RE
    R. E. Skelton

    South African Radio Astronomy Observatory

  • IG
    I. G. Momcheva

    Yale University

Topics & keywords

Topics
Keywords
  • Galaxy
  • Brightest cluster galaxy
  • Stellar mass
  • Lenticular galaxy
  • Galaxy merger
  • Surface brightness fluctuation
  • Redshift
  • Interacting galaxy
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