CAOSP abstracts, Volume: 27, No.: 1, year: 1997
- Author(s): ANTALOVA, A.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 27, no. 1, p. 31-40.
- Date: 04/1997
- Title: The continuation of the daily soft X-ray flare index (1973-1974)
- Keyword(s): THE SUN, FLARES
- Pages: 31 -- 40
The daily soft X-ray flare index was determined from the daily continuous
profile of solar soft X-ray flux, as published in Solar Geophysical Data. In
order to determine the heliographic coordinates of Long Duration Events (LDEs)
we exploited the fact that the soft X-ray flare emission is uniquely tied with
the occurrence of H-alpha flares. The daily flare index is given in Table 1.
The left (right) columns of Table 1 comprise the 1973 (1974) year data. Table
1 contains the Eastern (E), Central (C) and Western (W) indices of an LDE as
well as a daily flare index of the impulsive (I) flares, observed from January
1, 1973 to December 31, 1974.
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