Proton activity of the Sun in current solar cycle 24
نویسندگان
چکیده
منابع مشابه
Solar cycle 24: what is the Sun up to
of an M7.9 class flare on 13 March 2012. It is shown here in the 131 Å wavelength, which is particularly good for seeing solar flares and is typically colourized in teal. The flare was from the same active region, no. 1429, that produced flares and coronal mass ejections the entire week. The region had been moving across the face of the Sun since 2 March, then rotated out of Earth view. But per...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولFair space weather for solar cycle 24
[1] We discuss the polar field precursor method of solar activity forecasting, first developed 3 decades ago. Using this method the peak amplitude of the next solar cycle (24) is estimated at 124 ± 30 in terms of smoothed F10.7 Radio Flux and 80 ± 30 in terms of smoothed international or Zurich Sunspot number (Ri or Rz). This may be regarded as a ‘‘fair space weather’’ long term forecast. To su...
متن کاملPredicting solar cycle 24 with a solar dynamo model.
Whether or not the upcoming cycle 24 of solar activity will be strong is being hotly debated. The solar cycle is produced by a complex dynamo mechanism. We model the last few solar cycles by "feeding" observational data of the Sun's polar magnetic field into our solar dynamo model. Our results fit the observed sunspot numbers of cycles 21-23 reasonably well and predict that cycle 24 will be abo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Research in Astronomy and Astrophysics
سال: 2015
ISSN: 1674-4527
DOI: 10.1088/1674-4527/15/7/011