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Related papers: Total Solar Irradiance Variability and the Solar A…

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Irradiance variability has been monitored from space for more than two decades. Even if data are coming from different sources, it is well established that a temporal variability exists which can be set to as approximately 0.1%, in phase…

Astrophysics · Physics 2009-11-11 J. P. Rozelot , S. Lefebvre , S. Pireaux , A. Ajabshirizadeh

Utilizing the excellent stability of the Ozone Monitoring Instrument (OMI), we characterize both short-term (solar rotation) and long-term (solar cycle) changes of the solar spectral irradiance (SSI) between 265-500 nm during the on-going…

Solar and Stellar Astrophysics · Physics 2016-10-26 S. V. Marchenko , M. T. DeLand , J. L. Lean

We incorporate all existing solar neutrino flux measurements and take solar model flux uncertainties into account in deriving global fits to parameter space for the MSW and vacuum solutions of the solar neutrino problem.

High Energy Physics - Phenomenology · Physics 2008-11-26 Lawrence M. Krauss , Evalyn Gates , Martin White

We have used the Date-Compensated Discrete Fourier Transform and Periodogram analysis of the solar neutrino flux data from 1) 5-day-long samples from Super-Kamiokande-I detector during the period from June, 1996 to July, 2001; 2)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Abu Salem Mandal , Koushik Ghosh , Probhas Raychaudhuri

The study of solar neutrinos may provide important insights into the physics of the central region of the Sun. Four solar neutrino experiments have confirmed the solar neutrino problem but do not clearly indicate whether solar physics,…

Astrophysics · Physics 2009-10-22 H. J. Haubold , A. M. Mathai

The cosmic ray flux at the lowest energies, $\lesssim 10$ GeV, is modulated by the solar cycle, inducing a time variation that is expected to carry over into the atmospheric neutrino flux at these energies. Here we estimate this time…

High Energy Physics - Phenomenology · Physics 2022-02-16 Yi Zhuang , Louis E. Strigari , Rafael F. Lang

Total and spectral solar irradiance are key parameters in the assessment of solar influence on changes in the Earth's climate. We present a reconstruction of daily solar irradiance obtained using the SATIRE-S model spanning 1974 to 2013…

Solar and Stellar Astrophysics · Physics 2015-07-07 K. L. Yeo , N. A. Krivova , S. K. Solanki , K. H. Glassmeier

The minimal standard electroweak model can be tested by allowing all the solar neutrino fluxes, with undistorted energy spectra, to be free parameters in fitting the measured solar neutrino event rates, subject only to the condition that…

High Energy Physics - Phenomenology · Physics 2009-11-07 John Bahcall

Context. Total solar irradiance allows for the use of the Sun as a star for studying observations of stellar light curves from recent space missions. Aims. We aim to study how the mid-range periodicity observed in solar activity indices…

Solar and Stellar Astrophysics · Physics 2021-09-29 Gurgenashvili , E. , Zaqarashvili , T. V. , Kukhianidze , V. , Reiners , A. , Oliver , R. , Lanza , A. F. , Reinhold , T

A prominent manifestation of the solar dynamo is the 11-year activity cycle, evident in indicators of solar activity, including solar irradiance. Although a relationship between solar activity and the brightness of the Sun had long been…

Solar and Stellar Astrophysics · Physics 2015-07-07 K. L. Yeo

Total solar irradiance variations, about 0.1% between solar activity maximum and minimum, are available from accurate satellite measurements since 1978 and thus do not provide useful information on longer-term secular trends. Recently,…

Solar and Stellar Astrophysics · Physics 2012-05-23 S. Sello

Four operating neutrino observatories confirm the long standing discrepancy between detected and predicted solar neutrino flux. Among these four experiments the Homestake experiment is taking data for almost 25 years. The reliability of the…

Astrophysics · Physics 2016-08-30 H. J. Haubold , A. M. Mathai

The solar cycle is a complex phenomenon. To comprehensively understand it, we have to study various tracers. The most important component of this complex is the solar dynamo, which is understood as self-excitation of the solar magnetic…

Solar and Stellar Astrophysics · Physics 2025-01-10 V. N. Obridko , A. S. Shibalova , D. D. Sokoloff

Opportunity of the solar flares (SF's) prediction observing the solar neutrino fluxes is investigated. In three neutrino generations the evolution of the neutrino flux traveling the coupled sunspots (CS's) which are the SF source is…

Solar and Stellar Astrophysics · Physics 2020-04-22 O. M. Boyarkin , I. O. Boyarkina

Limiting ourselves to two flavor approximation the motion of the neutrino flux in the solar matter and twisting magnetic field is considered. For the neutrino system described by the 4-component wave function $\Psi^T = (\nu_{eL}, \nu_{XL},…

High Energy Physics - Phenomenology · Physics 2016-10-26 O. M. Boyarkin , G. G. Boyarkina

The analysis of the observations of solar activity indexes SSN (NOAA Sunspot Numbers), the radio flux at a wavelength of 10.7 cm (F10.7) and the solar constant (TSI) during the cycles 22 - 24 is presented. We found a decrease of the…

Solar and Stellar Astrophysics · Physics 2015-10-08 E. A. Bruevich , G. V. Yakunina

The total amount of solar irradiance falling on the earth's surface is an important area of study amongst the photo-voltaic (PV) engineers and remote sensing analysts. The received solar irradiance impacts the total amount of generated…

Instrumentation and Methods for Astrophysics · Physics 2018-04-23 Shilpa Manandhar , Soumyabrata Dev , Yee Hui Lee , Yu Song Meng

We analyze the effect of solar features on the variability of the solar irradiance in three different spectral ranges. Our study is based on two solar-cycles' worth of full-disk photometric images from the San Fernando Observatory, obtained…

Solar and Stellar Astrophysics · Physics 2015-05-28 Dora Preminger , Gary Chapman , Angela Cookson

Unexplained annual variations in nuclear decay rates have been reported in recent years by a number of groups. We show that data from these experiments exhibit not only variations in time related to Earth-Sun distance, but also…

Nuclear Experiment · Physics 2011-06-09 Ephraim Fischbach , Jere H. Jenkins , Peter A. Sturrock

We study the solar-activity and solar-polarity dependence of galactic cosmic-ray intensity (CRI) on the solar and heliospheric parameters playing a significant role in solar modulation. We utilize the data for cosmic-ray intensity as…

Solar and Stellar Astrophysics · Physics 2014-04-07 O. P. M. Aslam , Badruddin