Changes in the state of low-temperature plasma during an intense solar flare

Details Changes in the state of low-temperature plasma during an intense solar flare Changes in the state of low-temperature plasma during an intense solar flare

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986kfnt....2...27a&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 2, July-Aug. 1986, p. 27-33. In Russian.

Astronomy and Astrophysics

Astronomy

1

Astronomical Spectroscopy, Cold Plasmas, Solar Flares, Space Plasmas, H Alpha Line, H Beta Line, Radial Velocity, Solar Activity Effects, Vertical Motion

Scientific paper

Variations of the H-alpha and H-beta profiles are investigated in the spectra of the intense two-ribbon solar flare of May 16, 1981 during the entire development process of the flare including the initial stage. In the initial stage, upward motion of matter with velocities up to 30 km/s was observed in both flare knots. In the maximum and postmaximum stages, downward motion of the matter occurred with velocities of 5-10 km/s. Temperature in the H-alpha and H-beta emission region exceeded that in the undisturbed atmosphere by 500-1100 K.

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