Spectral line profiles of Fe XXI 1354.1 A from the Solar Maximum Mission

Details Spectral line profiles of Fe XXI 1354.1 A from the Solar Maximum Mission Spectral line profiles of Fe XXI 1354.1 A from the Solar Maximum Mission

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309..435m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 309, Oct. 1, 1986, p. 435-448. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

10

Iron, Line Shape, Solar Flares, Solar Maximum Mission, Spectral Line Width, Ultraviolet Spectra, Chromosphere, Evaporation, Spatial Resolution, Spectral Resolution

Scientific paper

Observations of the Fe XXI 1354.1 A line were obtained for several flares using the SMM-UVSP instrument with varying spectral and spatial resolution. Of special interest are spectral line profiles from the footpoints of flare loops taken during the impulsive phase. These data show blueshifted Fe XXI profiles coincident and cospatial with the impulsive brightening of chromospheric material. The present analysis supports the hypothesis that the blueshifted component of the high temperature emission is an integral part of the flare, possibly associated with chromospheric evaporation.

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