Discovery of diamagnetic cavity at comet 67P/C-G
Date: 11 August 2015
Satellite: Rosetta
Copyright: See below
The decrease in magnetic field strength measured by Rosetta's RPC-MAG instrument during the outburst event on 29 July 2015. This is the first time a 'diamagnetic cavity' has been detected at Comet 67P/Churyumov-Gerasimenko and is thought to be caused by an outburst of gas temporarily increasing the gas flux in the comet's coma, and pushing the pressure-balance boundary between it and incoming solar wind farther from the nucleus than expected under 'normal' levels of activity.
For more information see here.
Credit: ESA/Rosetta/RPC/IGEP/IC
Last Update: 1 September 2019
