Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data

Details Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19510706g&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #107.06; Bulletin of the American Astronomical Society, Vol. 31, p.1531

Astronomy and Astrophysics

Astronomy

Scientific paper

I reduced the series of observations taken with the NSO/SP Hilltop Hα full disk flare patrol telescope on 1998 May 6. Using local correlation techniques, I derived horizontal surface flows for active region NOAA 8214 from the Hα images. I then compared these with the line-of-sight magnetic flux of the region and structures seen in the Hα images. My research was focused on pre-activity signatures. My analysis of these data has revealed two distinct spikes in the curl of the surface velocity fields prior to activity observed. This result agrees with results obtained by Balasubramaniam, Milano, and Keil (1998) and Keil et al (1999), increasing the amount of evidence supporting the idea that these events are often precursors to later solar activity. My participation in this research was funded by the Research Experiences for Undergraduates program of the NSF and NSO.

Affiliated with

Also associated with

No associations

Rating

Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of Pre-Flare Chromospheric Surface Motions Using Hα Synoptic Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1747373