Solar mass loss, solar lithium, and solar oscillations
- Los Alamos National Lab., NM (United States). Los Alamos Astrophysics
Swenson and Faulkner, and Boothroyd et al. investigated the possibility that early main-sequence mass loss via a stronger early solar wind could be responsible for the observed solar lithium and beryllium depletion. This depletion requires a total mass loss of {approx}0.1 M{sub {circle_dot}}, nearly independent of the mass loss timescale. The authors have calculated the evolution and oscillation frequencies of solar models including helium and heavier element diffusion, and such early solar mass loss. For models with gradual early mass loss (during {approx}1 Gyr), the early mass loss phase decreases the total amount of helium and heavier elements diffused from the convection zone, and the extent of the diffusion-produced composition gradient just below the convection zone, deteriorating the agreement with observed frequencies for intermediate {ell} modes. The mass loss phase must be confined to {approx}0.2 Gyr or less to solve simultaneously the solar Li/Be problem and avoid discrepancies with solar oscillation frequencies.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10182171
- Report Number(s):
- LA-UR-94-2741; CONF-9405222-1; ON: DE94018262; TRN: AHC29421%%158
- Resource Relation:
- Conference: 1994 GONG conference,Los Angeles, CA (United States),May 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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