The White Dwarf Deficit in Open Clusters: Dynamical Processes

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The White Dwarf Deficit in Open Clusters: Dynamical Processes

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which the paucity of WDs is due to their escape from the cluster potential as a .... escape velocity which is also approximately twice the velocity dispersion in ...

to appear in ApJL

The White Dwarf Deficit in Open Clusters: Dynamical Processes

arXiv:astro-ph/0308261v1 14 Aug 2003

M. Fellhauer, D.N.C. Lin, M. Bolte UCO/Lick-Observatory, University of California, Santa Cruz, CA 95064 mike, lin, bolte @ucolick.org S.J. Aarseth Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK [email protected] K.A. Williams Steward Observatory, 933 N. Cherry Av., Tucson, AZ 85721 [email protected] ABSTRACT In Galactic open clusters, there is an apparent paucity of white dwarfs compared to the number expected assuming a reasonable initial mass function and that main-sequence stars with initial mass