Computer Science
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..783..271g&link_type=abstract
THE EVOLUTION OF STARBURSTS: The 331st Wilhelm and Else Heraeus Seminar. AIP Conference Proceedings, Volume 783, pp. 271-279 (2
Computer Science
1
Stars, Galaxies, Star Clusters, Starburst Galaxies And Infrared Excess Galaxies, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Stellar Clusters And Associations, Dwarf Galaxies, Stellar Content And Populations, Radii, Morphology And Overall Structure
Scientific paper
We review the ages of starbursts and the methods used to obtain this information. We emphasize that the measurement of this parameter is non-trivial because of observational biases and the complex time-dependent behavior of a starburst. Star clusters probably provide the best estimates of starburst ages which are then in the range 10-100 Myr, although the short lifetimes of some clusters must introduce a bias against longer lived events. From studies of stellar populations in nearby dwarf galaxies, the burst frequency is found to be ~ 15%. Stellar population synthesis modeling of unresolved galaxies provides starburst ages of a few Myr up to 100 Myr, consistent with ages derived using star clusters. Overall, the likely duration of a starburst event of <= 100 Myr suggests that they evolve on a time scale which is consistent with the internal dynamical time scale of a galaxy.
Gallagher Jay S.
Smith Lleweilun J.
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