The influence of external magnetic fields on the structure of thin accretion disks

Details The influence of external magnetic fields on the structure of thin accretion disks The influence of external magnetic fields on the structure of thin accretion disks

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...188...85a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 188, no. 1, Dec. 1987, p. 85-88.

Astronomy and Astrophysics

Astrophysics

6

Accretion Disks, Magnetic Effects, Magnetic Field Configurations, Pulsars, Stellar Structure, X Ray Binaries, Angular Velocity, Astronomical Models, Stellar Temperature, X Ray Sources

Scientific paper

The internal structure of thin accretion disks is studied for the case where strong outside magnetic fields interact with these disks. Such configurations are expected to occur in close binary X-ray pulsars such as Her X-1. The authors find that the magnetic pressure exerted on the disk has two main effects: the vertical disk structure shows a density increase towards the interface between disk and magnetosphere; and the thickness of the disk decreases more rapidly as one approaches the inner edge of the disk. The second effect gives a stronger irradiation of the disk surface close to the inner edge and this results in a higher surface temperature.

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