Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...203..104s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 203, no. 1, Sept. 1988, p. 104-110.
Astronomy and Astrophysics
Astrophysics
3
Accretion Disks, Neutron Stars, Periodic Variations, Stellar Coronas, Energy Dissipation, Stellar Magnetic Fields, Stellar Mass, Stellar Rotation, X Ray Binaries
Scientific paper
We propose a mechanism whereby rotating, weakly magnetized neutron stars, which are thought to be present in some low mass X-ray binaries, may lose energy to the accretion disk via an electrodynamical coupling between the magnetic field of the star and magnetic loops in a disk corona. This mechanism may solve some of the problems posed by the observations of these systems. In particular, the properties of the power spectra of some of the sources, in which quasi-periodic oscillations are observed, can be explained, and especially it can be understood why the lowfrequency noise in some sources may be much reduced in power with respect to the power in the oscillations.
Kuperus Max
Stollman G. M.
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