Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh33a1831b&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH33A-1831
Astronomy and Astrophysics
Astrophysics
[7519] Solar Physics, Astrophysics, And Astronomy / Flares, [7554] Solar Physics, Astrophysics, And Astronomy / X-Rays, Gamma Rays, And Neutrinos
Scientific paper
Hot spots for solar flares are areas where energetic solar flares occur more frequently than other areas. Hot spots last for one to three solar cycles. Hot spots remain at the same regions on the sun in a rigidly rotating coordinate system, although they are not active continuously. Most statistically significant hot spot systems are the ones with synodic rotation periods of 27.41 days and 26.73 days. Both hot spot systems, which were in the northern hemisphere, are made of two hot spots that were separated about 180 degrees in longitude. In order to understand them better, I have investigated their characteristics. The hot spot system rotating with a 26.73 day period was more efficient in producing energetic flares than other areas. In other words, the concentration of energetic flares in this hot spots was more pronounced than the concentration of less energetic flares. Compared with this, for the hot spot system rotating with a period of 27.41 days, the concentration of energetic flares was not much different from the concentration of less energetic flares. An additional interesting point for the 26.73-d hot spot system is that flare activity in each of the two hot spots was anti-correlated with each other when averaged over a few month time scale. The activity level of the other hot spot was low when the other the activity level of the other was high, and vice versa. This suggests that the two hot spots with the same rotation period were linked globally. I plan to discuss plausible interpretations of such results.
No associations
LandOfFree
Characteristics of Hot Spots for Solar Activity 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 Characteristics of Hot Spots for Solar Activity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of Hot Spots for Solar Activity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1509694