The case of Alpha Centauri - Mass, age and p-mode oscillation spectrum

1986 ◽  
Vol 300 ◽  
pp. 773 ◽  
Author(s):  
P. Demarque ◽  
D. B. Guenther ◽  
W. F. van Altena
Keyword(s):  
Oscillation Spectrum ◽  
Mode Oscillation

Evolutionary models and the p-mode oscillation spectrum of Alpha Centauri A and B

1992 ◽  
Vol 394 ◽  
pp. 313 ◽  
Author(s):  
Peter Edmonds ◽  
Lawrence Cram ◽  
Pierre Demarque ◽  
D. B. Guenther ◽  
Marc H. Pinsonneault
Keyword(s):  
Evolutionary Models ◽  
Oscillation Spectrum ◽  
Mode Oscillation

scholarly journals Sensitivity of solar p-modes to solar envelope structure

1988 ◽  
Vol 123 ◽  
pp. 91-94
Author(s):  
P. Demarque ◽  
D. B. Guenther
Keyword(s):  
Standard Model ◽  
Speed Of Sound ◽  
Convection Zone ◽  
Heavy Elements ◽  
Oscillation Spectrum ◽  
Mode Oscillation

We present a study of the effects of diffusion of helium and heavy elements from the convection zone into the radiative layer immediately below the convection zone, on the structure of the solar envelope. A comparison is made of the p-mode oscillation spectrum and the run of the speed of sound in a model with diffusion, in a standard model, and with observation.

scholarly journals Helioseismology, solar evolution and other physics

1995 ◽  
Vol 10 ◽  
pp. 332-334 ◽  
Author(s):  
P. Demarque ◽  
B. Chaboyer ◽  
D.B. Guenther ◽  
M.H. Pinsonneault
Keyword(s):  
Low Temperature ◽  
Solar Interior ◽  
The Sun ◽  
Rapid Progress ◽  
Oscillation Spectrum ◽  
Solar Evolution ◽  
Mode Oscillation

The last few years have seen rapid progress in solar interior modeling, and standard solar models (SSM) now predict a p-mode oscillation spectrum which agrees, within the estimated uncertainties in the physical input, with the observed oscillation spectrum of the Sun (Guenther et al., 1992a, 1992b; Guzik & Cox, 1993). This is the result of a number of improvements in the input physics, most notably the advances in opacities for the solar interior (Rogers & Iglesias, 1994) and the low temperature regions of the Sun (Kurucz, 1991). The agreement between the observed solar p-mode frequencies and the frequencies predicted by the SSM is not yet perfect, however, and understanding these discrepancies has become a focus of our research.

scholarly journals New Physics, New Evolutionary Tracks, New Isochrones

1993 ◽  
Vol 137 ◽  
pp. 448-450
Author(s):  
P. Demarque ◽  
D.B. Guenther ◽  
M.H. Pinsonneault
Keyword(s):  
New Physics ◽  
Solar Model ◽  
Oscillation Spectrum ◽  
Standard Solar Model ◽  
Mode Oscillation ◽  
First Time

Work has begun on the construction of a grid of theoretical isochrones based on important recent refinements in stellar physics. These refinements have already been applied to the construction of a standard solar model, which, for the first time, free of any adhoc assumptions, reproduces the observed p-mode oscillation spectrum within the errors of the physics (Guenther et al. 1992).

scholarly journals The mass of the planet-hosting giant starβGeminorum determined from its p-mode oscillation spectrum

2012 ◽  
Vol 543 ◽  
pp. A98 ◽  
Author(s):  
A. P. Hatzes ◽  
M. Zechmeister ◽  
J. Matthews ◽  
R. Kuschnig ◽  
G. A. H. Walker ◽  
...  
Keyword(s):  
Oscillation Spectrum ◽  
Mode Oscillation

scholarly journals Influence of Thermodynamic Effect on Sub-Synchronous Rotating Cavitation and Surge Mode Oscillation(Fluids Engineering)

2010 ◽  
Vol 76 (762) ◽  
pp. 179-185
Author(s):  
Yoshiki YOSHIDA ◽  
Hideaki NANRI ◽  
Kengo KIKUTA ◽  
Yusuke KAZAMI ◽  
Yuka IGA ◽  
...  
Keyword(s):  
Thermodynamic Effect ◽  
Mode Oscillation
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