astro-ph coffee suggested papers for Tue, Feb 25, 2014 at 10:30:00 AM
astro-ph coffee will be held at the date and time above. Some suggested papers of interest are listed below.
Coronal and chromospheric magnetic fields are derived from polarization and
spectral observations of the thermal free-free emission using the Nobeyama
Radioheliograph (NoRH). In magnetized plasma, the ordinary and extraordinary
modes of free-free emission have different optical depths. This creates a
circularly polarized component in an atmosphere with a temperature gradient. We
observed an active region on April 13, 2012 to derive its coronal and
chromospheric magnetic fields. The observed deg...