Solar Studies
Sunspot cycle 23 ended during fall 2008 and the Sun was relatively quiet until May 2009. We captured our first solar burst on May 8 and another on May 9, 2009. This page includes SkyPipe II charts as well as audio recordings (when available).
Solar Burst on May 8, 2009
The solar burst is the "shark-fin" shaped emission in the center. The spikes were caused by tuning around the 20.1 MHz center frequency to verify the wideband nature of the burst. There were several stations in the tuning range and each one caused a spike as we tuned through it.
Type III/Type V Solar Burst on May 9, 2009
Click here for an audio recording corresponding to the above chart (~80 s, 1.7 MB). This solar burst has been identified as Type III/ Type V solar radio emission. Click here for a paper describing Type V emissions (thanks to Thomas Ashcraft for burst identification and link to the paper).
Weak Solar Bursts at 1927 UTC Followed by a Much Stronger Burst at 1928:30 UTC February 27, 2010
The upper chart shows the full amplitude of the hotter burst at 1926 UTC; however, the chart vertical scale above 1,400,000 K is not calibrated. The vertical scale on the lower chart has been expanded to show the characteristics of the weaker bursts.
Solar Bursts at 1813 UTC March 28, 2010
