Initial results from the High Altitude Observatory white light coronagraph on SKYLAB - A progress report

Details Initial results from the High Altitude Observatory white light coronagraph on SKYLAB - A progress report Initial results from the High Altitude Observatory white light coronagraph on SKYLAB - A progress report

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976rspta.281..405m&link_type=abstract

(Royal Society, Discussion on the Physics of the Solar Atmosphere, London, England, Jan. 14, 15, 1975.) Royal Society (London),

Physics

8

Skylab Program, Solar Corona, Solar Magnetic Field, Solar Observatories, Interplanetary Magnetic Fields, Magnetic Effects, Magnetic Flux, Solar Activity Effects

Scientific paper

Frequent periodic observations by the white-light coronagraph allow an examination of coronal variations over a broad range of temporal scales. Examples of the slowest and most rapid variations are presented. An example of extremely slow coronal variations is the gradual evolution - to a large equatorial streamer - in association with a marked decrease in solar activity, as the total magnetic flux in one hemisphere decreased. Another example is given of a long-lived quasi-stable coronal streamer, apparently associated with a stable filament channel; comparison of this streamer with coronal potential-magnetic-field computations show little correlation. Some results on coronal transients - the most rapid variations observed - are summarized. Characteristic masses and energies involved in mass-ejection transients, their temporal and spatial distributions, their associations with surface phenomena and possible interplanetary signatures, and their role in coronal evolution are briefly noted.

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