A review of: “THEORETICAL PROBLEMS IN STELLAR STABILITY AND OSCILLATIONS”

1985 ◽  
Vol 34 (1-4) ◽  
pp. 339-341
Keyword(s):  
Stellar Stability

scholarly journals Possible Sources of Instability in Stars

1957 ◽  
Vol 3 ◽  
pp. 186-199
Author(s):  
P. Ledoux
Keyword(s):  
Stellar Stability

The most immediate purpose of the study of stellar stability is to discover the sources of incipient instability which must be responsible for the observed variability of a great number of stars.

scholarly journals Ray Trapping in Stellar Envelopes, Pulsational Instabilities and Heating of External Layers

1974 ◽  
Vol 56 ◽  
pp. 293-293
Author(s):  
Pierre Souffrin
Keyword(s):  
Preliminary Report ◽  
Classical Problem ◽  
Small Scale ◽  
Hydrodynamic Instabilities ◽  
Stellar Envelope ◽  
Stellar Pulsation ◽  
Recent Developments ◽  
Stellar Stability ◽  
Stellar Envelopes

The relation between local criteria for hydrodynamic instabilities and stellar stability is reconsidered. This leads to a discussion of the classical problem of stellar pulsation with a special emphasis on the pressure modes of high order spherical harmonics. It is shown that within the frame of the geometrical approximation, acoustic rays exist which are trapped inside any specified slab of a stellar envelope. The pressure modes associated with such rays are conjectured to give rise to small scale instabilities whenever a region exists in an envelope where any local criterium indicates pulsational instability. The model is expected to support and somewhat extend the recent developments concerning the role of pressure non-radial modes on the dynamics of the solar atmosphere and the heating of external layers.Preliminary report available from Observatoire de Nice.

The effects of radiation pressure on stellar stability

1988 ◽  
Vol 327 ◽  
pp. 801 ◽  
Author(s):  
R. F. Stellingwerf ◽  
A. Gautschy
Keyword(s):  
Radiation Pressure ◽  
Stellar Stability ◽  
Effects Of Radiation

Local stellar stability

1976 ◽  
Vol 44 (1) ◽  
pp. 177-215 ◽  
Author(s):  
J. Perdang
Keyword(s):  
Stellar Stability

Local stellar stability. II

1977 ◽  
Vol 52 (2) ◽  
pp. 313-350 ◽  
Author(s):  
J. Perdang
Keyword(s):  
Stellar Stability

scholarly journals Stellar stability in brane-worlds revisited

2014 ◽  
Vol 32 (2) ◽  
pp. 025014 ◽  
Author(s):  
Miguel A García-Aspeitia ◽  
L Arturo Ureña-López
Keyword(s):  
Brane Worlds ◽  
Stellar Stability

scholarly journals Strongest constraint in f(R) = R+ α R2 gravity: stellar stability

2020 ◽  
Vol 2020 (11) ◽  
pp. 048-048
Author(s):  
Juan M.Z. Pretel ◽  
Sergio E. Jorás ◽  
Ribamar R.R. Reis
Keyword(s):  
Stellar Stability

scholarly journals Radiation Hydrodynamics in Pulsating Stars

1986 ◽  
Vol 89 ◽  
pp. 36-52
Author(s):  
Robert F. Stellingwerf
Keyword(s):  
Velocity Field ◽  
Radiation Field ◽  
Thermal Effects ◽  
Nonlinear Effects ◽  
Time Dependent ◽  
Radiation Hydrodynamics ◽  
Current Interest ◽  
Dynamic Effects ◽  
Pulsating Stars ◽  
Stellar Stability

The topic of this review encompasses all aspects of pulsation theory, for the radiation field is never negligible in stellar stability problems, on the contrary, it is usually the primary destabilizing factor through its thermal effects, and modifies the envelope structure and stability through its dynamic effects. The impossibility of a general review of such a broad topic is apparent, and I will concentrate in this talk on the most striking aspect of pulsating stars: nonlinear effects in the outer layers. To focus the discussion, I will address primarily two problems of current interest: shock development driven by the pulsating velocity field, and time dependent turbulence in the ionization zones. The emphasis will be on methodology rather than specific problems and developments.

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