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Ensemble evolutionary studies of white dwarfs in open star clusters

Published online by Cambridge University Press:  09 October 2020

Kurtis A Williams Open the ORCID record for Kurtis A Williams [Opens in a new window]
Kurtis A Williams*
Affiliation:
Department of Physics & Astronomy, Texas A&M University-Commerce P.O. Box 3011, Commerce, TX, 75402, USA email: [email protected]
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Abstract

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White dwarfs (WDs) in open star clusters are a highly useful ensemble of stars. While numerous researchers use open cluster WDs to study the initial-final mass relation, numerous other evolutionary studies are also enabled by this sample of stars, including searches for stochastic mass loss, studies of binary star evolution, and measurements of metallicity impacts on WD formation and evolution. However, it is crucial to use astrometric data such as proper motions to remove contaminating field WDs from open cluster samples; multi-epoch ground based imaging is needed for most open cluster WDs. Also, the strongly correlated errors in the initial mass - final mass plane must be considered; we illustrate the importance of this consideration using a large open cluster WD sample and Monte Carlo techniques.

Keywords

white dwarfsopen clusters and associations: generalstars: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S357: White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution , October 2019 , pp. 179 - 183
Copyright
© International Astronomical Union 2020

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