A new method to determine star formation histories of nearby galaxies

Details A new method to determine star formation histories of nearby galaxies A new method to determine star formation histories of nearby galaxies

Nov 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997newa....2..397d&link_type=abstract

New Astronomy, Volume 2, Issue 5, p. 397-409.

Statistics

87

Stellar Content, Hertzsprung-Russell, Star Counts, Distribution, And Statistics, Stellar Content And Populations, Morphology And Overall Structure

Scientific paper

A new method for the study of the star formation histories of nearby galaxies with resolved stars is presented here. Rather than adopting traditional methods of creating synthetic color-magnitude diagrams (CMDs) with various star formation histories, the approach taken is to create a set of CMDs which can be combined linearly to reproduce almost any star formation history, and use a numerical fit to solve the problem. In addition, a quantitative fit parameter for determining the similarity of an observed and a theoretical CMD is presented, along with a number of tests of this parameter. Finally, a rigorous test of the method is given.

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