Planned closure - NCAR Mesa Lab Road & Facilities - July 4 at 4 pm  more info>

HAO Colloquium Series presents Alina Donea, Monash University

Please note: WEBCASTING AND RECORDING WILL NOT BE AVAILABLE FOR THIS PRESENTATIONTime: 1:30 - 2:30 pmDate: Wednesday, May 21, 2014Location: CG1 - 2139 Captain MaryTitle: Do we understand sunquakes?Abstract: Solar flares produce seismic waves in the Sun's interior that closely resemble those created by earthquakes on our planet. In this talk I will describe properties of  some spectacular solar quakes and their seismic sources. I will  relate these to multi-wavelength observations of the flares that generated them. I will emphasize how important it is now to understand the role of the chromosphere in generating these phenomena. Terminology such as  "acoustic dead beats", "seismic ripples on the sun", "seismic power maps", "acoustic transients", "sudden photospheric responses", "Lorentz forces" and  "particle beam momenta" along with observational evidence from  multiple instruments such as HMI and AIA /SDO, RHESSI, STEREO, FIRS and many others, are a few of the interesting aspects of our work which I will mention.

Will this event be webcast to the public by NCAR|UCAR?: 
Announcement timing: 
May 21, 2014