“Electric Current Neutralization and Solar Eruption in Active Regions”, by Yang LIU. Active current systems in the solar corona don’t have return currents.

See
http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets

listing the current series, 2008-present, and

http://sprg.ssl.berkeley.edu/~tohban/nuggets/

for the original series, 2005-2008.

We publish these at roughly two-weekly intervals and welcome contributions,
which should be related, at least loosely, to RHESSI science.