Magnetic properties of C IV Doppler shift patterns

Details Magnetic properties of C IV Doppler shift patterns Magnetic properties of C IV Doppler shift patterns

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989soph..119...19k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 119, no. 1, 1989, p. 19-34.

Physics

14

Carbon, Doppler Effect, Magnetic Properties, Photosphere, Solar Magnetic Field, Classifications, Magnetic Flux, Magnetic Signatures, Polarity

Scientific paper

Coaligned pairs of C IV Dopplergrams and Fe I magnetograms are used to investigate the relationship between Doppler shift patterns observed in the transition region and magnetic field patterns observed in the photosphere. It is found that V(0) lines associated with neutral lines tend to have limbward blueshifts, and that V(0) lines associated with unipolar regions tend to have limbward redshifts. The results are consistent with the active region model of Klimchuk (1984) in which relative redshifts occur where strong vertical fields penetrate the surface, and relative blueshifts occur where these same fields have spread out to become horizontal. It is suggested that the relative blueshifts may correspond to absolute Doppler shifts of very small amplitide.

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