Other
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..231p&link_type=abstract
In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000,
Other
Sun, Oscillations, Surface Reflection
Scientific paper
Acoustic waves reflect beneath the solar photosphere nearly as from a free surface. Some consequences of the details of this boundary are examined here for a planar model consisting of an adiabatically stratified polytropic interior, representative of the solar convection zone, overlaid by an isothermal representation of the solar atmosphere - a combination for which previous analysis provides analytic results. The modes formed by acoustic waves trapped within the adiabatic polytrope obey Duvall's law if the polytrope extends all the way to zero temperature. Either non-adiabaticity of the polytrope or its truncation short of zero temperature generally induces departures from this law. Waves trapped within the truncated adiabatic polytrope are shown, however, numerically to conform closely to Duvall's law for an atmosphere of appropriate temperature. The temperature jump at the interior/atmosphere interface necessary to recover Duvall's law is similar to the temperature change across the superadiabatic layer present at the top of the solar convection zone. The importance to asymptotic analyses of taking into account the basic difference between reflection from a free surface and reflection by refraction, as occurs to waves initially traveling downward into the Sun, is also remarked upon.
No associations
LandOfFree
Impact of near-surface solar structure on acoustic wave reflection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Impact of near-surface solar structure on acoustic wave reflection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact of near-surface solar structure on acoustic wave reflection will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-923498