Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-26T14:27:51.671Z Has data issue: false hasContentIssue false
  • English
  • Français

Revision of Star-Formation Measures

Published online by Cambridge University Press:  01 June 2008

Claus Leitherer
Claus Leitherer*
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA email: [email protected]
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.

Rotation plays a major role in the evolution of massive stars. A revised grid of stellar evolutionary tracks accounting for rotation has recently been released by the Geneva group and implemented into the Starburst99 evolutionary synthesis code. Massive stars are predicted to be hotter and more luminous than previously thought, and the spectral energy distributions of young populations mirror this trend. The hydrogen ionizing continuum in particular increases by a factor of up to 3 in the presence of rotating massive stars. The effects of rotation generally increase towards shorter wavelengths and with decreasing metallicity. Revised relations between star-formation rates and monochromatic luminosities for the new stellar models are presented.

Keywords

stars: evolutionstars: rotationgalaxies: dwarfgalaxies: evolutiongalaxies: irregulargalaxies: starburstgalaxies: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Issue S255: Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies , June 2008 , pp. 305 - 309
Copyright
Copyright © International Astronomical Union 2008

References

Faber, S. M. & Gallagher, J. S. 1979, ARA&A, 17, 135Google Scholar
Hirschi, R., Chiappini, C., Meynet, G., Maeder, A., & Ekström, S. 2008, IAU Symp. 250, Massive Stars as Cosmic Engines, ed. Bresolin, F., Crowther, P. A., & Puls, J. (Cambridge: CUP), 217Google Scholar
Kroupa, P. 2007, in: IAU Symp. 241, Stellar Populations as Building Blocks of Galaxies, ed. Vazdekis, A. & Peletier, R. F. (Cambridge: CUP), 109Google Scholar
Leitherer, C., et al. 1999, ApJS, 123, 3CrossRefGoogle Scholar
Maeder, A. & Meynet, G. 2000, ARA&A, 38, 143Google Scholar
Smith, L. J., Norris, R. P. F., & Crowther, P. A. 2002, MNRAS, 337, 1309CrossRefGoogle Scholar
Tinsley, B. M. 1980, Fund. Cosm. Phys., 5, 287Google Scholar
Vázquez, G. A. & Leitherer, C. 2005, ApJ, 621, 695CrossRefGoogle Scholar
Vázquez, G. A., Leitherer, C., Schaerer, D., Meynet, G., & Maeder, A. 2007, ApJ, 663, 995CrossRefGoogle Scholar