| Gyroresonance emission |
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| • | Opacity
results from electrons gyrating in coronal |
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| magnetic
fields at fB = 2.8 106 B Hz. |
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| • | In
the non-flare (non-relativistic) corona this |
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| produces narrow
resonances. |
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| • | Opacity µ
n B/(¶B/¶l) (T/mc2 sin2q)s-1 |
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| where
s = 1, 2, 3, … is the harmonic |
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| • | Because T/mc2 is 1/3000, opacity drops by 3 |
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| orders
of magnitude from one layer to the next |
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