Browsing Articles by Author "Sofia, S."

Browsing Articles by Author "Sofia, S."

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    An alternative explanation for the observed variation of solar p-modes with the solar cycle 
    Lydon, Thomas Joseph; Guenther, David B.; Sofia, S. (American Astronomical SocietyIOP Publishing, 1996-01-10)
    By mimicking the effects of a magnetic field on the interior structure of a solar model, observed changes in p-mode frequencies over the course of the solar cycle are explained in terms of a change in the intensity and ...

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    Global parameter and helioseismic tests of solar variability models 
    Guenther, David B.; Li, L. H.; Basu, S.; Sofia, S.; Robinson, F. J.; Demarque, P. (American Astronomical Society and IOP Publishing, 2003-07-10)
    We construct models of the structure and evolution of the Sun which include variable magnetic fields and turbulence. The magnetic effects are (1) magnetic pressure, (2) magnetic energy, and (3) magnetic modulation to ...

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    Inclusion of turbulence in solar modeling 
    Guenther, David B.; Li, L. H.; Robinson, F. J.; Demarque, P.; Sofia, S. (American Astronomical SocietyIOP Publishing, 2002-03-10)
    The general consensus is that in order to reproduce the observed solar p-mode oscillation frequencies, turbulence should be included in solar models. However, until now there has not been any well-tested efficient method ...