S130411 -- M6.5 flare in AR 11719 followed by strong radio burst,
with types II and IV radiation, Earth directed CME, Moreton wave
At Learmonth Observatory, Australia:
2700 sfu 245 MHz
3000 sfu 1.415 GHz
100 sfu 15.4 GHz
This flare generated a wonderful type IV display at Nancay, in right and left circular polarizations, strongest in RCP, reaching 20 dB above background, 25 to 65 MHz band. Please see selected Nancay spectra below.
Many thanks to SDO, SOHO, LMSAL, Learmonth Observatory, e-Callisto Solar Observatories in Ireland and Germany:
http://herrero-radio-astronomy.blogspot.com/search/label/e-Callisto
the Taxpayers of France, and the Nancay Decametric Array Team at the Nancay Radio Astronomy Station of Paris Observatory.
SOHO CME images below
At Learmonth Observatory, Australia:
2700 sfu 245 MHz
3000 sfu 1.415 GHz
100 sfu 15.4 GHz
This flare generated a wonderful type IV display at Nancay, in right and left circular polarizations, strongest in RCP, reaching 20 dB above background, 25 to 65 MHz band. Please see selected Nancay spectra below.
Many thanks to SDO, SOHO, LMSAL, Learmonth Observatory, e-Callisto Solar Observatories in Ireland and Germany:
http://herrero-radio-astronomy.blogspot.com/search/label/e-Callisto
the Taxpayers of France, and the Nancay Decametric Array Team at the Nancay Radio Astronomy Station of Paris Observatory.
SOHO CME images below
Nancay spectra below
SDO image below