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Absence of Correlation between the Solar Neutrino Flux and the Sunspot Number
Solar Neutrino Flux Sunspot Number
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2015/8/20
There exists a considerable amount of research claiming a puzzling anticorrelation between the
neutrino detection rate at the Homestake experiment and indicators of solar activity such as the sunspot...
Flare induced penumbra formation in the sunspot of NOAA 10838
Solar and Stellar Astrophysics (astro-ph.SR)
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2010/12/24
We have observed formation of penumbrae on a pore in the active region NOAA10838 using Dunn Solar Telescope at NSO,Sunpot,USA. Simultaneous observations using different instruments (DLSP,UBF,Gband and...
Scattering of helioseismic waves by a sunspot: wavefront healing and folding
Solar and Stellar Astrophysics (astro-ph.SR)
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2010/12/23
We observe and characterize the scattering of acoustic wave packets by a sunspot, in a regime where the wavelength is comparable to the size of the sunspot. Spatial maps of wave traveltimes and amplit...
Explanation of the sea-serpent magnetic structure of sunspot penumbrae
sunspots Sun magnetic fields
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2010/3/9
Recent spectro-polarimetric observations of a sunspot showed the formation of bipolar magnetic patches in the mid penumbra and their propagation toward the outer penumbral boundary. The observations w...
Long-term Modulation of Cosmic Ray Intensity in relation to Sunspot Numbers and Tilt Angle
Cosmic ray intensity sunspot numbers tilt angle
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2009/5/7
Adetailed correlative analysis between sunspot numbers (SSN) and tilt angle (TA) with cosmic ray intensity (CRI) in the neutron monitor energy range has been performed for the solar cycles 21, 22 and ...
Predicting Maximum Sunspot Number in Solar Cycle 24
Sunspot number precursor prediction technique geomagnetic activity index aa
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2010/9/15
A few prediction methods have been developed based on the precursor technique which is found to be successful for forecasting the solar activity. Considering the geomagnetic activity aa indices during...
Long-term Modulation of Cosmic Ray Intensity in relation to Sunspot Numbers and Tilt Angle
Cosmic ray intensity sunspot numbers tilt angle
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2010/9/16
Adetailed correlative analysis between sunspot numbers (SSN)and tilt angle (TA) with cosmic ray intensity (CRI) in the neutron monitor energy range has been performed for the solar cycles 21, 22 and 2...