HR: 11:25h
AN: SH41D-05    [PDF]
TI: Successful Measurement of the Full Magnetic Vector Near the Base of the Solar Corona
AU: * Solanki, S K
EM: solanki@linmpi.mpg.de
AF: Max Planck Institute for Aeronomy, Max Planck Str. 2, Katlenburg-Lindau, 37191 Germany
AU: Lagg, A
AF: Max Planck Institute for Aeronomy, Max Planck Str. 2, Katlenburg-Lindau, 37191 Germany
AU: Woch, J
AF: Max Planck Institute for Aeronomy, Max Planck Str. 2, Katlenburg-Lindau, 37191 Germany
AU: Krupp, N
AF: Max Planck Institute for Aeronomy, Max Planck Str. 2, Katlenburg-Lindau, 37191 Germany
AU: Landi degl'Innocenti, E
AF: Dipartimento di Astronomia, Universita di Firenze, Firenze, 50125 Italy
AU: Collados, M
AF: IAC, Via Lactea, La Laguna, 38200 Spain
AB: The measurement of coronal fields has in the past generally been restricted to the field strength or to only some of the components of the magnetic vector. We present here a technique for measuring the full magnetic vector near the base of the solar corona. As an application we report on observations of a developing active region with ongoing magnetic flux emergence. The data allow the first measurement of the 3-D structure of magnetic loops. They also provide the first detection of an electric current sheet located near the base of the solar corona. Such current sheets or tangential discontinuities of the coronal magnetic field have long been thought to be a major source of coronal heating.
DE: 7507 Chromosphere
DE: 7509 Corona
DE: 7524 Magnetic fields
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting