Infrared observations of supergranule temperature structure

Details Infrared observations of supergranule temperature structure Infrared observations of supergranule temperature structure

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...45..521w&link_type=abstract

Solar Physics, vol. 45, Dec. 1975, p. 521-532.

Astronomy and Astrophysics

Astronomy

34

Infrared Astronomy, Solar Atmosphere, Solar Granulation, Solar Temperature, Chromosphere, Photosphere, Stellar Structure

Scientific paper

One and two-dimensional observations were made at 1.64 microns, the deepest observable level in the solar atmosphere; at 1.72 microns, representing the chromosphere; and at 1.17 microns, representing the visible photosphere. Structures distributed on a supergranular size scale (30,000 km) are apparently present at all levels. These structures in the deep photospheric level (1.64 microns) seem to be a 50 K-500 K 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.

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