Test of stellar hydrodynamics predictions
Test of stellar hydrodynamics predictions
Test of stellar hydrodynamics predictions
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Discovery Science, At Last?<br />
• In-situ generation <strong>of</strong> magnetic fields via the Biermann battery<br />
mechanism (Kuranz et al. 2010)<br />
- cross <strong>of</strong> electron density and temperature gradients<br />
B<br />
t<br />
<br />
ck<br />
e<br />
B<br />
<br />
T<br />
e<br />
ln n<br />
- usually neglected term in the induction equation<br />
- induced magnetic field => extra pressure<br />
e<br />
<br />
• Consequences for supernovae<br />
• Magnetic pressure comparable to the thermal pressure at the<br />
thermonuclear deflagration front => possibly critical for SN Ia<br />
• Estimated negligible in core-collapse<br />
Fryxell et al. (2010)<br />
April 26, 2011<br />
23
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