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  • 1
    Electronic Resource
    Electronic Resource
    Properties of the emission regions in AM Her stars (1987)
    Springer
    Astrophysics and space science 131 (1987), S. 625-629 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The emission regions on the white-dwarf primaries of AM Her type systems are suggested to be extended and offset from the magnetic pole similar to the oval arc of emission formed by the Earth's auroral zone. In ST LMi and EF Eri, the emitting areas of the bremsstrahlung, the soft X-ray, and the cyclotron sources are shown to display a hierarchy with a small bremsstrahlung core being surrounded by a larger cyclotron halo. Core and halo are characterized by large differences in specific accretion rate with that in the bremsstrahlung core corresponding to a sizable fraction (≳10%) of the Eddington rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00668147
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