Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph

Details Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..669k&link_type=abstract

In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze

Physics

Solar Flare, Bright Points, Magnetic Field

Scientific paper

Active region NOAA 9661 was observed on 13 October 2001 via narrow band Hα filters at THEMIS and at the Ondřejov Multichannel Flare Spectrograph both at a cadence of 25 images per second. Rapidly evolving bright points located at various places close to the sunspot were noticed several times during the day from 6 UT until 13 UT. Quite often their sudden appearance and disappearance seemed to be strongly correlated. We expect these small areas to be magnetically interconnected and possibly heated by injections of the same population of electrons moving along the magnetic field lines. Light curves of Hα emission integrated over individual bright areas were derived to search for short-timescale variations and to analyze them, especially concerning their correlations between different pairs of these areas. A similar analysis was performed for sites in all the active region for comparison and calibration purposes. Changes in correlations are discussed.

Affiliated with

Also associated with

No associations

Rating

Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph 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 Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometry of rapidly evolving chromospheric bright points in NOAA 9661 as observed by Themis and the Ondřejov multichannel flare spectrograph will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-963971