Hostname: page-component-8448b6f56d-t5pn6 Total loading time: 0 Render date: 2024-04-25T06:20:30.065Z Has data issue: false hasContentIssue false

Star-formation history, globular clusters and XRBs in early-type galaxies

Published online by Cambridge University Press:  12 May 2006

L. A. Nolan
Affiliation:
School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
R. Kraft
Affiliation:
Harvard/Smithsonian Center for Astrophysics, 60, Garden St., MS-67, Cambridge, MA, 02138
T. Ponman
Affiliation:
School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
C. Jones
Affiliation:
Harvard/Smithsonian Center for Astrophysics, 60, Garden St., MS-67, Cambridge, MA, 02138
S. Raychaudhury
Affiliation:
School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

NGC 5102 has an unusually low number of XRBs. The deficit of LMXBs is even more striking because some of these sources may in fact be HMXBs, produced in one of the two recent bursts of star formation $\sim$15 and $\sim$300 Myr ago. Our UV-optical spectral synthesis analysis demonstrates that a significant fraction ($>$50%) of the stars in this galaxy are comparatively young ($<$3 Gyr). NGC 5102 also has an usually low number of globular clusters for its mass, luminosity and environment.

We discuss the relationship between the XRB population, the globular cluster population and the relative youth of the majority of the stars in this galaxy. We intend to extend our investigation of the relationship between XRB populations, star-formation history and globular clusters to a sample of ten early-type galaxies with a range of star-formation histories and investigate the implications for models of LMXB formation and evolution.

Type
Contributed Papers
Copyright
2006 International Astronomical Union