2010A&A...509A..45T


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.03CET12:44:18

2010A&A...509A..45T - Astronomy and Astrophysics, volume 509, A45-45 (2010/1-1)

The structure of thin accretion discs around magnetised stars.

TESSEMA S.B. and TORKELSSON U.

Abstract (from CDS):

We determine the steady-state of an axisymmetric thin accretion disc with an internal dynamo around a magnetised star. Starting from the vertically integrated equations of magnetohydrodynamics we derive a single ordinary differential equation for a thin accretion disc around a massive magnetic dipole and integrate this equation numerically from the outside inwards. Our numerical solution shows that the torque between the star and the accretion disc is dominated by the contribution from the dynamo in the disc. The location of the inner edge of the accretion disc varies between RA and 10RA depending mainly on the strength and direction of the magnetic field generated by the dynamo in the disc

Abstract Copyright:

Journal keyword(s): accretion, accretion discs - magnetohydrodynamics (MHD) - magnetic fields - stars: neutron - X-rays: stars - stars: pre-main sequence

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* V779 Cen HXB 11 21 15.0920367078 -60 37 25.627505233   14.4       O9III/Veq 999 0
2 V* KZ TrA LXB 16 32 16.79 -67 27 39.3 17.40 18.60 18.5     ~ 528 1
3 NAME OAO 1657-41 HXB 17 00 48.884 -41 39 21.46           Ofpe/WN9 211 0
4 V* V2116 Oph Sy* 17 32 02.1544831482 -24 44 44.125962969   20.78 18.4     M6IIIe 647 1

    Equat.    Gal    SGal    Ecl

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2020.12.03-12:44:18

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