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)

Wednesday, April 1, 2015

Sun Earth Jupiter 2015 April

Many thanks to: STEREO and WIND Teams, Taxpayers of France, French Air Force, Nancay Decametric Array Team at the Nancay Radio Astronomy Station of Paris Observatory, Prof. Dr. Kazumasa Imai Kochi National College of Technology Kochi Japan, Trinity College Dublin Ireland Astrophysics Group, United States NOAA SWPC, NASA SDO HMI Magnetograph Team, Lockheed Martin Solar Laboratory


About the metric and decametric bands frequency ranges

The metric band, 1 to 10 meters, extends from 30 to 300 MHz
The decametric band, 10 to 100 meters, extends from 3 to 30 MHz


Has Zebra ever been observed at meter wavelengths, 1 to 10 meters, 30 to 300 MHz ?

I refer to:

and quote Chen Bastian Gary and Ju Jing 2011:

"...ZP [zebra patterns] bursts appear in radio dynamic spectra as closely-spaced, quasi-parallel bands of emission, typically ranging from ~ 5−20 in number but sometimes showing as many as 70...They have been observed at meter wavelengths for decades..."