Infrared Observations of Supergranule Temperature Structure
Abstract
One and two-dimensional observations were made at 1.64 μ, the deepest observable level in the solar atmosphere; at 1.72 μ, representing the chromosphere; and at 1.17 μ, representing the visible photosphere. Structures distributed on a supergranular size scale (30000 km) are apparently present at all levels. These structures in the deep photospheric level (1.64 μ) seem to be a 50K-500K temperature decrease over surrounding photosphere confined to the magnetic field elements with horizontal scales less than 4000 km at supergranular boundaries, rather than a general temperature structure over the entire supergranule cell appropriate to convective energy transport.
- Publication:
-
Solar Physics
- Pub Date:
- December 1975
- DOI:
- 10.1007/BF00158467
- Bibcode:
- 1975SoPh...45..521W
- Keywords:
-
- Infrared Astronomy;
- Solar Atmosphere;
- Solar Granulation;
- Solar Temperature;
- Chromosphere;
- Photosphere;
- Stellar Structure;
- Solar Physics;
- Atmosphere;
- Magnetic Field;
- Temperature Structure;
- Temperature Decrease;
- Energy Transport