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Observations of the double stars Castor, Σ 2398 and μ′ Herculis
E. Barnard
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Astrophysics and Space Science Library, 2018
The AM Herculis binaries have white dwarf primary stars with the strongest magnetic fields observed in the cataclysmic variables. They are unique in having no accretion discs and primary stars rotating in synchronism with the orbit. The accretion stream becomes magnetically channelled and reaches the primary by one or more localized columns.
C. Campbell
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The AM Herculis binaries have white dwarf primary stars with the strongest magnetic fields observed in the cataclysmic variables. They are unique in having no accretion discs and primary stars rotating in synchronism with the orbit. The accretion stream becomes magnetically channelled and reaches the primary by one or more localized columns.
C. Campbell
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General Discussion on AM Herculis Stars
Astrophysics and Space Science Library, 1985Donald Q. Lamb, Joseph Patterson
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Accretion in AM Herculis Stars
1990The optical continua of magnetic cataclysmic binaries (AM Herculis stars) are formed by cyclotron radiation in the hot accretion plasmas. Phase-resolved low-resolution spectrophotometry is one of the most important diagnostic tools to investigate the properties of cyclotron radiation.
A. Schwope
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Polarized Radiation from AM Herculis Stars
International Astronomical Union Colloquium, 1983ABSTRACTCalculations of polarized cyclotron radiation from magnetized hot plasmas are modified to include the effects of collisions and photon scattering. These effects produce a general reduction in both the linear and circular polarization. The background unpolarized flux which had previously been invoked, in an ad hoc manner for the collisionless ...
P. E. Barrett, G. Chanmugam
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Electrodynamical synchronization of AM Herculis-type stars
Astrophysics and Space Science, 1986A new mechanism is proposed for the explanation of synchronous rotations in AM Herculis-type binaries. In contrast to the resistive mechanism of Josset al. (1979), our model predicts that an asynchronous rotation, if it is present, damps exponentially and the damping time is inversely proportional to the electrical conductivity.
O. Kaburaki
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Characteristics of the AM Herculis Type Stars and Review of proposed Interpretations
International Astronomical Union Colloquium, 1979Consider a close binary system where mass transfer is underway from a relatively normal star to a highly magnetic degenerate dwarf. The magnetic field is strong enough that the magnetic pressure balances the ram pressure of the infalling plasma at a distance comparable with the separation of the two stars.
S. Tapia
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Flickering in the Magnetic CV Star AM Herculis
Astrophysics and Space Science, 2005In this study, we present a photometric study of AM Her, a prototype of a class of magnetic CVs. Optical photometry of AM Her was obtained using the Russian—Turkish 1.5 m telescope at TUBITAK National Observatory (TUG) in August 2003. The R band light curve of the system shows two maxima and two minima during one orbital cycle. In both observing nights
Kalomeni B., Pekünlü E.R., Yakut K.
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