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"Magnetospheric gate" in polars
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The mass-exchange process in polars is discussed. We point out that the strong magnetic field of a white dwarf in these systems can under certain conditions prevent the material from flowing through the L1 point operating as a "magnetospheric gate''. We show that the condition under which the "magnetospheric gate'' is closed is satisfied in the majority of polars known to date. This finding opens the question about a possibility to realize an alternative mechanism of mass exchange in these systems. We briefly discuss application of this mechanism to the best studied polars.
Special Astrophysical Observatory of the Russian Academy of Sciences
Title: "Magnetospheric gate" in polars
Description:
The mass-exchange process in polars is discussed.
We point out that the strong magnetic field of a white dwarf in these systems can under certain conditions prevent the material from flowing through the L1 point operating as a "magnetospheric gate''.
We show that the condition under which the "magnetospheric gate'' is closed is satisfied in the majority of polars known to date.
This finding opens the question about a possibility to realize an alternative mechanism of mass exchange in these systems.
We briefly discuss application of this mechanism to the best studied polars.
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