Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause

Details Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210..792a&link_type=abstract

Astrophysical Journal, vol. 210, Dec. 15, 1976, pt. 1, p. 792-804. Research supported by the National Research Council

Astronomy and Astrophysics

Astrophysics

53

Magnetohydrodynamic Stability, Magnetopause, Neutron Stars, Plasma Layers, Plasma Waves, Stellar Atmospheres, Stellar Magnetospheres, Gravitational Effects, Propagation Modes, Rotating Plasmas, Shock Wave Propagation, Viscosity, X Ray Sources

Scientific paper

Results are reported for a linearized hydromagnetic stability analysis of the magnetopause of an accreting neutron star. The magnetosphere is assumed to be slowly rotating, and the plasma just outside the magnetopause is assumed to be weakly magnetized. The plasma layer is assumed to be bounded above by a shock wave and to be thin compared with the radius of the magnetosphere. Under these circumstances, the growing modes are shown to be localized in the direction parallel to the zero-order magnetic field, but the structure of the modes is still similar to the flute mode. An expression for the growth rate at each magnetic latitude is obtained in terms of the magnitude of the gravitational acceleration normal to the surface, the azimuthal mode number, the radius of the magnetosphere, the height of the shock above the magnetopause, and the effective Atwood number which embodies the stabilizing effects of favorable curvature and magnetic tension. The effective Atwood number is calculated, and the stabilizing effects of viscosity and aligned flow parallel to the magnetopause are discussed.

Affiliated with

Also associated with

No associations

Rating

Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accretion onto magnetized neutron stars - Normal mode analysis of the interchange instability at the magnetopause will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1048619