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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4538
DTSTART:20170501T170000Z
DTEND:20170501T180000Z
DTSTAMP:20260419T040337Z
LAST-MODIFIED:20170424T142055Z
LOCATION:4421 Sterling Hall
SUMMARY:Physics Of The Stochastic Excitation Of Stellar Modes\, BAUTZ 
 LECTURE\, Peter Goldreich\, CALTECH
DESCRIPTION:<br>
\nInternal properties of stars with convective envelo
 pes are determined by analyzing the frequencies of their acoustic mode
 s. After a brief introduction to observational techniques\, I will des
 cribe the emission\, absorption\, and scattering of sound inside a sta
 r and how the waves ultimately escape through its photosphere.  Then I
  will demonstrate how these processes account for some remarkable regu
 larities revealed by observations of solar modes across 3 orders of ma
 gnitude in angular degree.<br>
\n<br>
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URL:https://www.physics.wisc.edu/events/?id=4538
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