scholarly journals Comparative Analysis of Super-Kamiokande Solar Neutrino Measurements and Geological Survey of Israel Radon Decay Measurements

2021 ◽  
Vol 9 ◽  
Author(s):  
P. A. Sturrock ◽  
O. Piatibratova ◽  
F. Scholkmann
Keyword(s):  
Comparative Analysis ◽  
Physical Process ◽  
Solar Neutrino ◽  
Rotation Rate ◽  
Convection Zone ◽  
Geological Survey ◽  
Close Correspondence ◽  
Radon Decay ◽  
Sidereal Rotation ◽  
Nuclear Processes

Analyses of neutrino measurements acquired by the Super-Kamiokande Neutrino Observatory (SK, in operation 1996–2001) and radon decay measurements acquired by the Geological Survey of Israel (GSI, in operation 2007–2017) yield strikingly similar detections of an oscillation with frequency 9.43 ± 0.04 year−1 (SK), 9.44 ± 0.04 year−1 (GSI); amplitude 6.8 ± 1.7% (SK), 7.0 ± 1.0% (GSI); and phase 124 ± 15° (SK), 124 ± 9° (GSI). This remarkably close correspondence supports the proposition that neutrinos may somehow influence nuclear decays. It is interesting to note that an oscillation at this frequency has also been reported by (Alexeyev EN, Gavrilyuk YM, Gangapshev AM, Phys Particles Nuclei, 2018 49(4):557–62) in the decay of 214Po. The physical process responsible for this influence of neutrinos on nuclear processes is currently unknown. Related oscillations in GSI data at 7.45 ± 0.03 year−1 and 8.46 ± 0.03 year−1 suggest that these three oscillations are attributable to a solar core that rotates with a sidereal rotation rate of 8.44 ± 0.03 year−1 about an axis almost orthogonal to that of the convection zone. We briefly discuss possible implications of these results.

scholarly journals Comparative analysis of GALLEX and GNO solar neutrino data

2006 ◽  
Vol 26 (3) ◽  
pp. 174-185 ◽  
Author(s):  
P.A. Sturrock ◽  
D.O. Caldwell ◽  
J.D. Scargle
Keyword(s):  
Comparative Analysis ◽  
Solar Neutrino

SOLAR NEUTRINO FLUX VARIATION AND NEUTRINO MAGNETIC MOMENT

1989 ◽  
Vol 04 (02) ◽  
pp. 111-114 ◽  
Author(s):  
PROBHAS RAYCHAUDHURI
Keyword(s):  
Magnetic Field ◽  
Sunspot Number ◽  
Magnetic Moment ◽  
Solar Neutrino ◽  
Convection Zone ◽  
Neutrino Flux ◽  
Flux Variation ◽  
Neutrino Magnetic Moment ◽  
Solar Neutrino Flux ◽  
The Magnetic Field

It is shown that neutrino flip through the magnetic field of the convection zone is not responsible for the anticorrelation between the solar neutrino flux and the sunspot number.

I.—The Geology of the Lower Coal-measures of the Derbyshire and Nottinghamshire portion of the Yorkshire Coalfield

1909 ◽  
Vol 6 (7) ◽  
pp. 289-299 ◽  
Author(s):  
Robert Douglass Vernon
Keyword(s):  
Geological Survey ◽  
Close Correspondence ◽  
Lithological Character ◽  
Coal Measures

The lithological character and sequence of the lower part of the Coal-measures of the Yorkshire Coalfield have been well known since the publication of the memoir by the Geological Survey in 1878. No connected account of the explorations in the equivalent measures of the Derbyshire and Nottinghamshire portion of the coalfield has been written; thus the close correspondence which exists between the lower part of the Coal-measures of Yorkshire and that of Derbyshire and Nottinghamshire is still generally unknown.

On the rotation rate in the solar convection zone

1994 ◽  
Vol 434 ◽  
pp. 378 ◽  
Author(s):  
Jepser Schou ◽  
Timothy M. Brown
Keyword(s):  
Rotation Rate ◽  
Convection Zone ◽  
Solar Convection Zone ◽  
Solar Convection

scholarly journals Solar activity and differential rotation

2010 ◽  
Vol 6 (S273) ◽  
pp. 298-302
Author(s):  
Hari Om Vats ◽  
Satish Chandra
Keyword(s):  
Solar Activity ◽  
Differential Rotation ◽  
Rotation Rate ◽  
Rotation Period ◽  
Activity Cycle ◽  
Solar Activity Cycle ◽  
X Ray ◽  
Sunspot Numbers ◽  
Sidereal Rotation

AbstractThe coronal sidereal rotation rate as a function of latitude for each year, extending from 1992 to 2001 for soft X-ray images and from 1998 - 2005 for radio images are obtained. The present analysis reveals that the equatorial rotation rate of the corona is comparable to the photosphere and the chromosphere, However, at the higher latitudes, the corona rotation quite differently than the photosphere and chromosphere. The latitude differential obtained by both radio and X-ray images is quite variable throughout the period of the study. The equatorial rotation period seems to vary almost systematically with sunspot numbers which indicates its dependence on the phases of the solar activity cycle.

scholarly journals Rotation in the solar convection zone inferred from Fabry-Perot observations of the 5-min oscillations

1988 ◽  
Vol 123 ◽  
pp. 49-52
Author(s):  
Frank Hill ◽  
David M. Rust ◽  
Thierry Appourchaux
Keyword(s):  
Lithium Niobate ◽  
Rotation Rate ◽  
Convection Zone ◽  
Solar Rotation ◽  
Inversion Method ◽  
Solar Convection Zone ◽  
Solar Convection ◽  
Fabry Perot ◽  
Full Disk ◽  
Solar Rotation Rate

Full disk observations of the 5-min solar oscillations have been obtained with a lithium niobate Fabry-Perot filter. The equatorial solar rotation rate as a function of depth has been inferred from the sectoral modes of oscillation using the Backus-Gilbert optimal averaging inversion method. The results show a rotation rate that slowly decreases over the depths of 15 to 56 Mm below the photosphere. The results are in agreement with the previous Duvall-Harvey observations.

scholarly journals Spatial–temporal characterization of land subsidence induced by large area distribution of recent dredger fill

2020 ◽  
Vol 382 ◽  
pp. 131-135
Author(s):  
Jinxin Lin ◽  
Hanmei Wang ◽  
Tianliang Yang ◽  
Xinlei Huang
Keyword(s):  
Comparative Analysis ◽  
Land Subsidence ◽  
Large Scale ◽  
Soft Soil ◽  
Soil Layer ◽  
Geological Survey ◽  
Dredger Fill ◽  
Large Scale Land ◽  
And Control ◽  
Level Monitoring

Abstract. Large-scale land subsidence often occurs after large-scale land formation caused by dredger fill, which affects the sustainable development of the region. In order to prevent and control land subsidence in the area with dredger fill, the characteristics of land subsidence and its main influencing factors need to be studied. A typical region was examined using geological survey data, land-level monitoring and comparative analysis, to provide insight regarding the variability of dredger-fill characteristics and impacts on land subsidence. The geological survey results provided the information about burial distribution characteristics of dredger fill and its underlying soil layers. The land-level monitoring results were analyzed to characterize the spatial–temporal distribution of land subsidence. The comparative analysis of land subsidence with the formation time, soil properties, thicknesses of dredger fill and the lower soft soil layer provided information about the different impacts. The monitoring results show that the land subsidence of dredger fill areas was substantially larger than that of adjacent areas. The later the filling was formed, the thicker the filling is, and the more clay-rich the soil property and the thicker the soft soil layer is, the larger the land subsidence is. Finally, the future trend of land subsidence in the study area are given and some suggestions on the prevention and control of land subsidence are also given.

scholarly journals Updated solar neutrino fluxes with new heavy element abundances

2020 ◽  
Vol 19 ◽  
pp. 66
Author(s):  
G. I. Karathanou ◽  
V. Tsikoudi ◽  
T. S. Kosmas
Keyword(s):  
Solar Neutrino ◽  
Heavy Element ◽  
Convection Zone ◽  
Reaction Rates ◽  
Extensive Study ◽  
Element Abundances ◽  
Solar Structure ◽  
Solar Evolution ◽  
Microphysical Parameters ◽  
Neutrino Fluxes

In the present work we carry out an extensive study of the solar structure and solar evolution through the use of the TYCHO 6.92 code, which includes a variety of programs and subroutines. In this code we incorporate the most updated microphysical parameters such as screening, recent experimental measurements of the astrophysical factors-S (LUNA), several updated, recently measured, heavy element abundances, etc., and created new models describing crucial phenomena of the solar structure and solar evolution. We used this code to calculate and update nuclear reaction rates, solar neutrino fluxes, solar quantities which characterize the internal solar structure such as temperature, pressure, density, luminosity, heavy element abundances (4He, 12C, 14N, 16O, etc.) as well as sound speed profile and depth of the convection zone.

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