Motions and mass changes of a persistent coronal streamer

Details Motions and mass changes of a persistent coronal streamer Motions and mass changes of a persistent coronal streamer

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978soph...57..141p&link_type=abstract

Solar Physics, vol. 57, Mar. 1978, p. 141-153.

Physics

11

Mass Transfer, Solar Activity, Solar Corona, Solar Limb, Coronagraphs, Skylab Program

Scientific paper

The Skylab white light coronagraph observed a coronal streamer during five successive limb passages between June 1 and August 6, 1973. Measurements of the streamer's latitude, brightness and polarization during three east-limb passages show that: (1) the streamer's axis migrated southward from 25 deg N at first east-limb passage to 11 deg N at second east-limb passage to 8 deg N at third east-limb passage, (2) the streamer's mass and mass gradient with height varied by 20-50% from one east-limb passage to the next, (3) the streamer's longitudinal extent was observed to be less on successive east-limb passages, and (4) mass changes (distinct from coronal transients) occurring over hours were detected during at least two limb passages. The streamer was found to be associated with a complex of solar activity consisting of active regions and filaments.

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