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Simulating a White Dwarf dominated Halo

Published online by Cambridge University Press:  26 May 2016

C.B. Brook ,
D. Kawata  and
B.K. Gibson
C.B. Brook
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
D. Kawata
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
B.K. Gibson
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, VIC 3122, Australia

Abstract

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Halo initial mass functions (IMFs) heavily biased toward white dwarf (WD) precursors (∼ 1 - 8M⊙) have been suggested as a suitable mechanism for explaining MACHO events. However, by simple chemical evolution argument, Gibson & Mould (1997; GM97) pointed out that such WD-heavy IMFs (wdIMF) cause the overproduction of carbon and nitrogen. We re-examine this problem using numerical simulations.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 208: Astrophysical Supercomputing using Particle Simulations , 2003 , pp. 381 - 382
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Chabrier, G., Segretain, L. & Mera, D. 1996, ApJ, 486, L21 Google Scholar
Gibson, B.K. & Mould, J. R. 1997, ApJ, 482, 98 Google Scholar
Katz, N. & Gunn, J. E. 1991, ApJ, 377, 365 CrossRefGoogle Scholar
Kawata, D., 2001, ApJ, 558, 598 Google Scholar
Oppenheimer, B. R. et al. 2001, ApJ, 550 448 CrossRefGoogle Scholar
Salpeter, E. E. 1955, ApJ, 121, 161 Google Scholar
Timmes, F. X., Woosley, S. E. & Weaver, T. A. 1995, ApJS, 98, 617 Google Scholar
van den Hoek, L. B. & Groenewegen, M. A. T., 1997 A&AS 123 305V Google Scholar
White, S. D. M., Springel, V., 2000, in The First Stars, proceedings of the MPA/ESO Workshop, Garching, Germany, August 1999. Achim Weiss, Abel, Tom G., Hill, Vanessa (eds.). Springer, p.327 Google Scholar
Woosley, S. E. & Weaver, T. A. 1995, ApJS, 101, 181 Google Scholar