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| Paper: |
Recovering the Star Formation Rate in the Solar Neighborhood |
| Volume: |
371, Statistical Challenges in Modern Astronomy IV |
| Page: |
407 |
| Authors: |
Cignoni, M.; Degl'Innocenti, S.; Moroni, P.G.P.; Shore, S.N. |
| Abstract: |
This paper develops a method for obtaining the star formation histories of a mixed, resolved population through the use of color-magnitude diagrams (CMDs). The method is applied to the derivation of the local star formation rate, analyzing the observations of the Hipparcos satellite through a comparison with synthetic CMDs computed for different star formation histories with an updated stellar evolution library. Parallax and photometric uncertainties are included explicitly and corrected using the Bayesian Richardson-Lucy algorithm. We find that the solar neighborhood star formation rate has a characteristic timescale for variation of about 6 Gyr, with a maximum activity close to 3 Gyr ago. |
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