Nonlinear Pulsation Modeling of Luminous Blue Variables
Conference
·
OSTI ID:627124
Using an updated version of the Ostlie and Cox (1993) nonlinear hydrodynamics code, we show the results of Luminous Blue Variable (LBV) envelope models based on evolution models of initial mass 50-80 M solar. including mass loss. The models use OPAL opacities, contain 60-120 Lagrangian zones, include time dependent convection, and are given an initial photospheric radial velocity amplitude of 1 km/sec. Our goal is to explain the reason for the LBV instability strip and suggest a cause for LBV outbursts observed in massive stars in our Galaxy as well as the LMC and SMC.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 627124
- Report Number(s):
- LA-UR-97-4189; CONF-9706195-; ON: DE98002656; TRN: 98:006924
- Resource Relation:
- Conference: Workshop: a half century of stellar pulsation interpretations - a tribute to Arthur N. Cox, Los Alamos, NM (United States), 16-20 Jun 1997; Other Information: PBD: [Jun 1997]
- Country of Publication:
- United States
- Language:
- English
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