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FLARE ACTIVITY AND THE STRENGTH OF SOLAR CYCLES Miruna Daniela Popescu, Georgeta Mari, Adrian Oncica, Marilena Mierla
 

Summary: FLARE ACTIVITY AND THE STRENGTH OF SOLAR CYCLES
Miruna Daniela Popescu, Georgeta Mari, Adrian Oncica, Marilena Mierla
Astronomical Institute of the Romanian Academy
St. Cutitul de Argint 5, RO-75212 Bucharest 28, Romania
Fax: +40 1 337 33 89; tel.: +40 1 335 80 10
E-mail: gmaris@aira.astro.ro
ABSTRACT
The paper evaluates the solar flare activity during
the last three 11-year cycles (the period 1976 - 2001).
The flare occurrence follows the solar cycle (SC) with
some particularities for each class of flares and with
unexpected ''pulses'' of activity during the descending
phase. Here we analyse the solar flare data registered
both in H and soft X-ray (SXR). The monthly and
yearly distribution of the flares is evidenced taking into
consideration their released energy. We are searching if
the flare activity of a cycle could influence the strength
of the following cycle, and if it can be considered as an
ingredient in the solar forecasting methods.
1. INTRODUCTION

  

Source: Armagh Observatory

 

Collections: Physics