Abstract

This paper investigates the velocity field in the flare region during the impulsive phase of the 2B/M2.3 importance solar flare of June 26, 1999. Spectral Hα observations of the flare with high temporal and spatial resolution were made with the KG-2 coronograph of the Crimean Astrophysical Observatory. Velocities are estimated by the bisector method. The velocity field in the flare region and flare kernel during the impulsive phase are found to be very complex, have a fine structure, and alter rapidly with time. Different elements of the flare exhibit line shifts of different magnitude and even different directions. This means that there are local Doppler motions in the fine structural elements of the flare.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.