Extending the evolution of the stellar mass–size relation at z≤2 to low stellar mass galaxies from HFF and CANDELS

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Dokumenter

  • stab1744

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  • Kalina Nedkova
  • Boris Haussler
  • Danilo Marchesini
  • Paola Dimauro
  • Paul Eigenthaler
  • Adina D. Feinstein
  • Henry C. Ferguson
  • Marc Huertas-Company
  • Evelyn J. Johnston
  • Erin Kado-Fong
  • Jeyhan S. Kartaltepe
  • Ivo Labbe
  • Daniel Lange-Vagle
  • Nicholas S. Martis
  • Elizabeth J. McGrath
  • Adam Muzzin
  • Yasna Ordenes-Briceno
  • Thomas Puzia
  • Heath Shipley
  • Brooke D. Simmons
  • Rosalind E. Skelton
  • Mauro Stefanon
  • Arjen van der Wel
  • Katherine E. Whitaker

We reliably extend the stellar mass-size relation over 0.2 = 10(10.3)M(circle dot) and flattens at lower masses, regardless of whether quiescence is selected based on star-formation activity, rest-frame colours, or structural characteristics. This flattening occurs at sizes of similar to 1 kpc at z = 10(9.5)M(circle dot) and quiescent galaxies with stellar masses >= 10(10.3)M(circle dot) have undergone significant size growth since z similar to 2, as expected; however, low mass galaxies have not. Finally, we supplement our data with predominantly quiescent dwarf galaxies from the core of the Fornax cluster, showing that the stellar mass-size relation is continuous below 10(7)M(circle dot), but a more complicated functional form is necessary to describe the relation.

OriginalsprogEngelsk
TidsskriftMonthly Notices of the Royal Astronomical Society
Vol/bind506
Udgave nummer1
Sider (fra-til)928-956
Antal sider29
ISSN0035-8711
DOI
StatusUdgivet - 1 sep. 2021

ID: 281985306