Red Nuggets at High Redshift: Structural Evolution of Quiescent Galaxies Over 10 Gyr of Cosmic History - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles The Astrophysical Journal Letters Year : 2011

Red Nuggets at High Redshift: Structural Evolution of Quiescent Galaxies Over 10 Gyr of Cosmic History

Ivana Damjanov
  • Function : Author
Roberto G. Abraham
  • Function : Author
Karl Glazebrook
  • Function : Author
Patrick J. Mccarthy
  • Function : Author
Evelyn Caris
  • Function : Author
Raymond G. Carlberg
  • Function : Author
Hsiao-Wen Chen
David Crampton
  • Function : Author
Andrew W. Green
  • Function : Author
Inger Jørgensen
Stéphanie Juneau
  • Function : Author
Damien Le Borgne
Ronald O. Marzke
  • Function : Author
Erin Mentuch
  • Function : Author
Richard Murowinski
  • Function : Author
Kathy Roth
  • Function : Author
Sandra Savaglio
  • Function : Author
Haojing Yan

Abstract

We present an analysis of the size growth seen in early-type galaxies over 10 Gyr of cosmic time. Our analysis is based on a homogeneous synthesis of published data from 16 spectroscopic surveys observed at similar spatial resolution, augmented by new measurements for galaxies in the Gemini Deep Deep Survey. In total, our sample contains structural data for 465 galaxies (mainly early-type) in the redshift range 0.2 < z < 2.7. The size evolution of passively evolving galaxies over this redshift range is gradual and continuous, with no evidence for an end or change to the process around z ~ 1, as has been hinted at by some surveys which analyze subsets of the data in isolation. The size growth appears to be independent of stellar mass, with the mass-normalized half-light radius scaling with redshift as Re vprop(1 + z)-1.62 ± 0.34. Surprisingly, this power law seems to be in good agreement with the recently reported continuous size evolution of UV-bright galaxies in the redshift range z ~ 0.5-3.5. It is also in accordance with the predictions from recent theoretical models.

Dates and versions

insu-03645891 , version 1 (19-04-2022)

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Cite

Ivana Damjanov, Roberto G. Abraham, Karl Glazebrook, Patrick J. Mccarthy, Evelyn Caris, et al.. Red Nuggets at High Redshift: Structural Evolution of Quiescent Galaxies Over 10 Gyr of Cosmic History. The Astrophysical Journal Letters, 2011, 739, ⟨10.1088/2041-8205/739/2/L44⟩. ⟨insu-03645891⟩
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