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Paper: |
The Impact of Mergers in the Mass Distribution of White Dwarfs |
Volume: |
469, 18th European White Dwarf Workshop (EUROWD12) |
Page: |
71 |
Authors: |
Isern, J.; Catalán, S.; García–Berro, E.; Hernanz, M. |
Abstract: |
Recent surveys have allowed derivation of the white dwarf mass
distribution with reasonable accuracy. This distribution shows a
noticeable degree of structure that it is often attributed to the
evolution of close binaries in general, and to mergers in particular.
To analyze if the origin of this structure can be attributed to the
merger of double white dwarfs, we have used a simplified population
synthesis model that retains the essential processes of formation of
double degenerate binaries. Special care has been taken to avoid
artifacts introduced by discontinuities in the distribution functions.
Our result is that these structures are not probably due to mergers,
but they can provide a deep insight on the evolution of close binary
systems. |
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