Poster Open Access

Rieger-type periodicity in total irradiance of the Sun as a star

Eka Gurgenashvili

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<oai_dc:dc xmlns:dc="" xmlns:oai_dc="" xmlns:xsi="" xsi:schemaLocation="">
  <dc:creator>Eka Gurgenashvili</dc:creator>
  <dc:description>Rieger type periodicity is a mid-range periodicity of 150-200 days in solar activity (Rieger et al. 1984). The periodicity can be found in many solar activity indices. Total solar irradiance permits Sun as a star to study stellar light curves from recent space missions. We study periodic variations of total solar irradiance (TSI) based on SATIRE-S and SOHO/VIRGO data during solar cycles 23-24 on time scales of Rieger-type periodicity. We then compare the power spectrum of oscillations in total solar irradiance to those of sunspot and faculae data to determine their contributions.</dc:description>
  <dc:subject>The Sun and the Heliosphere</dc:subject>
  <dc:title>Rieger-type periodicity in total irradiance of the Sun as a star</dc:title>
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