Hostname: page-component-76fb5796d-qxdb6 Total loading time: 0 Render date: 2024-04-27T19:49:43.115Z Has data issue: false hasContentIssue false
  • English
  • Français

GALEX-derived Residual Star Formation History of Elliptical Galaxies

Published online by Cambridge University Press:  21 April 2007

E. Emsellem ,
H. Wozniak ,
G. Massacrier ,
J.-F. Gonzalez ,
J. Devriendt ,
N. Champavert ,
S.K. Yi ,
S. Kaviraj ,
K. Schawinski  and
S. Khochfar
S.K. Yi
Affiliation:
Yonsei University, Department of Astronomy, Seoul, South Korea
S. Kaviraj
Affiliation:
University of Oxford, Astrophysics, Oxford, UK
K. Schawinski
Affiliation:
University of Oxford, Astrophysics, Oxford, UK
S. Khochfar
Affiliation:
University of Oxford, Astrophysics, Oxford, UK
Get access

Abstract

Bright early-type galaxies are still forming stars at low-level residual star formation (RSF) mode. The GALEX UV satellite has detected excessive UV flux in >30% of our volume-limited sample of ~ 103 galaxies. The RSF galaxy fraction is higher among the dynamically low-mass sample (RSF-σ relation). We postulate that this is a result of a “critical” MBH − σ relation that regulates residual star formation activities in early type galaxies. Implications are discussed.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 24: CRAL-2006. Chemodynamics: From First Stars to Local Galaxies , 2007 , pp. 73 - 76
Copyright
© EAS, EDP Sciences, 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)