Are spicules a source of coronal matter?

Details Are spicules a source of coronal matter? Are spicules a source of coronal matter?

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68.1108g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, Sept.-Oct. 1991, p. 1108-1110. In Russian.

Physics

Chromosphere, Matter (Physics), Solar Corona, Spicules, Doppler Effect, H Alpha Line

Scientific paper

Measurements are presented of the Doppler shifts of the H-alpha line and the EUV C I lines at the solar disk center which contradict the widely accepted picture of the ascending motion of the spicular matter at a velocity of about 25 km/s. The downward motions with a velocity of several km/s are predominant in the spicule as well as in formations of the transitional region from the chromosphere to the crown. In this case the spicules cannot be considered a source of matter inflow into the corona. It is argued that so-called chromospheric jets observed inside the cells of the chromospheric network can play a role in mass transfer into the corona.

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