An explanation of the observed differences between coronal holes and quiet coronal regions

Details An explanation of the observed differences between coronal holes and quiet coronal regions An explanation of the observed differences between coronal holes and quiet coronal regions

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...51..159h&link_type=abstract

Solar Physics, vol. 51, Jan.-Feb. 1977, p. 159-168.

Physics

21

Solar Corona, Solar Magnetic Field, Solar Temperature, Coronagraphs, Solar Wind, Solar X-Rays, Ultraviolet Spectra

Scientific paper

It is suggested that the flux heating the corona in coronal holes and in quiet magnetic coronal regions is about the same, but that the higher coronal temperature in a quiet coronal region results from a reduction of the heat conduction coefficient in the transition region because the magnetic field lies at an angle to the radial direction. Such an explanation is consistent with investigations of the magnetic field which show that in coronal holes the magnetic field is approximately radial and weak, and that over large areas of the solar surface, the magnetic field has a closed loop configuration.

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