Hercules A

Hercules A
Radio-Optical View of the Galaxy Hercules A - Many thanks to: NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA)

Saturday, March 30, 2013

130330-130402 -- Four consecutive days of lovely solar activity at Nancay - types I II III V VI

Many thanks to the Taxpayers of France, and the Nancay Decametric Array Team at the Nancay Radio Astronomy Station of Paris Observatory.

130402 -- Four consecutive days of lovely solar activity at Nancay - types I II III V VI
http://www.swpc.noaa.gov/ftpdir/indices/events/20130401events.txt

AR 11711 has potential for M flares:
http://www.solarmonitor.org/region.php?date=20130402&region=11711

X-ray image on 130401:
http://www.solarmonitor.org/data/2013/04/02/pngs/hxrt/hxrt_flter_ar_11711_20130401_060012.png

Its Hale class is beta:
http://www.spaceweather.com/glossary/magneticclasses.html
beta: A sunspot group having both positive and negative magnetic polarities (bipolar), with a simple and distinct division between the polarities:
http://www.solarmonitor.org/data/2013/04/02/pngs/shmi/shmi_maglc_ar_11711_20130402_151447.png

Type III storms at rates of several per minute, LCP continuum, a 4 minute drifting band of type I bursts in the 50-75 MHz band (LCP):

130402 below



4 minute drifting band of type I bursts in the 50-75 MHz band (LCP) below





130401 -- Third consecutive day of good solar activity at Nancay
http://www.swpc.noaa.gov/ftpdir/indices/events/20130401events.txt

AR 11711
http://www.solarmonitor.org/region.php?date=20130401&region=11711
gave an impressive X-ray image on 130331 0626 UTC
http://www.solarmonitor.org/data/2013/04/01/pngs/hxrt/hxrt_flter_ar_11711_20130331_062643.png

See also the latest 171 angstrom movie
http://sdo.gsfc.nasa.gov/assets/img/latest/latest_1024_0171.mpg

130401 below 



130331 below




Type V/2 below - significant brief continuum

130330 below
Type II with fundamental and second harmonic - 2 spectra below







Type VI - a series of type III lasting > 10 minutes - below