CAOSP abstracts, Volume: 25, year: 1995
- Author(s): ANTALOVA, A.; JAKIMIEC, M.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 25, p. 19-32.
- Date: 09/1995
- Title: Solar magnetic sectors and spatial distribution of LDE-type flares
- Keyword(s): SUN, GLOBAL MAGNETIC REVERSAL, MAGNETIC POLARITY SECTORS
- Pages: 19 -- 32
We present a number of statistical tests that speak in favour of an
increased (both LDE-type and impulsive) flare activity in active regions
(ARs) which are located inside or along the boundaries of the solar sectors
with `reversed' magnetic polarity. Altogether 338 daily values of 32
BEARALERT regions have been analysed in terms of eight variables during the
ascending phase of the 22nd solar cycle. The flare occurrence is found
smallest inside the `old' sectors and peaks inside the `reversed' sectors and
at the sectors' boundaries. Separate analyses of the data showing a lack of
strong flare activity for a given day (the data subset dn, comprising 155
daily vectors), and the data pertinent to strong flare activity in a given day
(the data subset df, representing 183 daily vectors) lead to the same results
concerning the sectorial distribution of active regions.
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