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| Paper: |
Derivation of the Stellar Formation History from White Dwarfs in the Solar Neighborhood |
| Volume: |
493, 19th European Workshop on White Dwarfs |
| Page: |
355 |
| Authors: |
Tremblay, P.-E.; Kalirai, J. S.; Soderblom, D. R.; Cignoni, M.; Cummings, J. |
| Abstract: |
The study of volume complete samples in the solar neighborhood is a powerful technique to learn about the stellar formation history and the initial mass function. We probe the local formation history from the volume complete sample of white dwarfs within 20 pc, where accurate cooling ages and masses have been determined. The observed initial-final mass relation and theoretical stellar isochrones are used to determine the initial stellar parameters of white dwarfs in the local sample. We correct for moderate biases that are necessary to transform our results to a global stellar formation rate, and compare to similar studies based on the properties of main-sequence and turnoff stars. Our results suggest an enhanced formation rate in the last 5 Gyr compared to the range 5 < Age (Gyr) < 10 for stars that are presently in the solar neighborhood. |
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