Wave heating in magnetic flux tubesThe bright chromosphere in the quiet sun is confined to magnetic elements (flux tubes), which are located in the interior of the supergranulation cells and within the network that surrounds the cells. The paper discusses the heating of the gas in the magnetic elements of the cell interior. These intranetwork flux tubes are closely associated with bright points, which are heated by large-amplitude compressive waves with periods near the acoustic cutoff that travel outward from the photosphere and dissipate their energy in the chromosphere. The energy flux of these long-period waves appears to be sufficient for the heating of the low and middle chromosphere in the bright points.
Document ID
19910060258
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kalkofen, Wolfgang (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)