Modeling VIRGO spectral and bolometric irradiances with MDI data

STEINEGGER M., HANSLMEIER A., OTRUBA W., BRANDT P., Eker Z., WEHRLI C., ...Daha Fazla

Summer School and Workshop on the Dynamic Sun, KARNTEN, Avusturya, 30 Ağustos - 10 Eylül 1999, cilt.259, ss.283-286 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 259
  • Basıldığı Şehir: KARNTEN
  • Basıldığı Ülke: Avusturya
  • Sayfa Sayıları: ss.283-286
  • Akdeniz Üniversitesi Adresli: Hayır

Özet

The last solar activity minimum in 1996 was characterized by several periods without any sunspots or faculae visible on the solar disk. Between these extremely quiet intervals, from time to time a single active region emerged and developed. The passage of these individual active regions across the visible solar hemisphere was accompanied by a pronounced variation in the solar irradiance as observed by VIRGO onboard SOHO. Making use of photometric full-disk observations of the Sun obtained by MDI we try to reconstruct the temporal behaviour of the three spectral and the total irradiance channels measured by VIRGO by applying starspot modeling techniques. In this paper we mainly discuss possible error sources.