NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Influence of a magnetic field on the pulsational stability of starsUnder certain simplifying assumptions the influence of a magnetic field on the pulsational stability of stars has been investigated, with a particular application to the problem of the stability of upper-main-sequence stars. It has been found that, if the magnetic field averaged over a spherical shell is either constant at all layers or distributed such that nu, the ratio of magnetic to thermodynamic pressure, is constant at all layers, the critical mass for stability against nuclear-energized pulsations is virtually unaffected by the presence of the field. On the other hand, if the field is strong in the envelope but weak in the core of the star, the critical mass is considerably increased; when nu exceeds about 0.1 in the envelope, stability is attained at all masses.
Document ID
19790050202
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Strothers, R.
(NASA Goddard Institute for Space Studies New York, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
79A34215
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available