What causes the 24-day period observed in solar flares?

Details What causes the 24-day period observed in solar flares? What causes the 24-day period observed in solar flares?

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...433..707t&link_type=abstract

Astronomy and Astrophysics, Volume 433, Issue 2, April II 2005, pp.707-712

Astronomy and Astrophysics

Astrophysics

2

Sun: Flares, Sun: Activity, Sun: Magnetic Fields

Scientific paper

Previous studies report a 24-day (synodic) period in the occurrence rate of solar flares for each of the solar cycles studied, Nos. 19-22 (Bai 1987, ApJ, 314, 795; Temmer et al. 2004, Sol. Phys. 221, 325). Here we study the 24-day period in the solar flare occurrence for solar cycles 21 and 22 by means of wavelet power spectra together with the solar flare locations in synoptic magnetic maps. We find that the 24-day peak revealed in the power spectra is just the result of a particular statistical clumping of data points, most probably caused by a characteristic longitudinal separation of about +40circ to +50circ of activity complexes in successive Carrington rotations. These complexes appear as parallel, diverging or converging branches in the synoptic magnetic maps and are particularly flare-productive.

Affiliated with

Also associated with

No associations

Rating

What causes the 24-day period observed in solar flares? 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 What causes the 24-day period observed in solar flares?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What causes the 24-day period observed in solar flares? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1451955