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Solar activity variations strongly impact the modulation of the flux of low-energy Galactic Cosmic Rays (GCRs) reaching the Earth. The secondary particles, which originate from the interaction of GCRs with the atmosphere, can be revealed by…

太阳与恒星天体物理 · 物理学 2025-10-24 C. Taricco , I. Bizzarri , C. Dionese , S. Mancuso

Element settling inside the Sun now becomes detectable from the comparison of the observed oscillation modes with the results of the theoretical models. This settling is due, not only to gravitation, but also to thermal diffusion and…

天体物理学 · 物理学 2009-10-30 Sylvie Vauclair

Measuring the cosmic ray flux over timescales comparable to the age of the solar system, $\sim 4.5\,$Gyr, could provide a new window on the history of the Earth, the solar system, and even our galaxy. We present a technique to indirectly…

The total solar irradiance (TSI) varies on timescales of minute to centuries. On short timescales it varies due to the superposition of intensity fluctuations produced by turbulent convection and acoustic oscillations. On longer scale…

太阳与恒星天体物理 · 物理学 2022-10-12 V. Penza , F. Berrilli , L. Bertello , M. Cantoresi , S. Criscuoli , P. Giobbi

The solar activity, which is driven by a variable magnetic field, exhibits changes along several time scales, the 11-year being the most known. In addition to the SunSpot Number, the Ca II K index and the Mg II index are indices widely…

太阳与恒星天体物理 · 物理学 2024-05-28 Raffaele Reda , Valentina Penza

Solar activity is studied using a cluster analysis of the time-fluctuations of the sunspot number. It is shown that in an Historic period the high activity components of the solar cycles exhibit strong clustering, whereas in a Modern period…

天体物理学 · 物理学 2010-11-02 A. Bershadskii

In this last Paper III additional evidences that the solar high energetic particles radiation with energies higher as 100 MeV (the solar cosmic rays SCR) is an very important component for the "Sun- climate" relationship are given (see also…

地球与行星天体物理 · 物理学 2010-07-14 Boris Komitov

We provide the results from a spectral analysis of nuclear decay data displaying annually varying periodic fluctuations. The analyzed data were obtained from three distinct data sets: 32Si and 36Cl decays reported by an experiment performed…

The solar contribution to global mean air surface temperature change is analyzed by using an empirical bi-scale climate model characterized by both fast and slow characteristic time responses to solar forcing: $\tau_1 =0.4 \pm 0.1$ yr, and…

地球物理 · 物理学 2014-11-20 Nicola Scafetta

The variability in the magnetic activity of the Sun is the main source of the observed changes in the plasma and electromagnetic environments within the heliosphere. The primary way in which solar activity affects the Earth's environment is…

太阳与恒星天体物理 · 物理学 2024-05-27 Raffaele Reda , Mirko Stumpo , Luca Giovannelli , Tommaso Alberti , Giuseppe Consolini

Effects of the dense matter can induce the neutrino decay even if neutrinos are stable in vacuum. This is due to coherent interactions with matter which lead to energy level-splitting between the neutrino and antineutrino states and thereby…

高能物理 - 唯象学 · 物理学 2007-05-23 Zurab G. Berezhiani , Anna Rossi

The variable Sun is the most likely candidate for natural forcing of past climate change on time scales of 50 to 1000 years. Evidence for this understanding is that the terrestrial climate correlates positively with solar activity. During…

太阳与恒星天体物理 · 物理学 2015-05-27 A. I. Shapiro , W. Schmutz , E. Rozanov , M. Schoell , M. Haberreiter , A. V. Shapiro , S. Nyeki

Solar neutrinos coming from different nuclear reactions are now detected with a high statistics. Consequently, an accurate spectroscopic analysis of the neutrino fluxes arriving on the Earth's detectors become available, in the context of…

太阳与恒星天体物理 · 物理学 2013-02-13 Ilídio Lopes , Sylvaine Turck-Chièze

We have used both the Date-Compensated Discrete Fourier Transform and Periodogram analysis of the monthly solar neutrino flux data from (1) SAGE detector during the period from 1st January 1990 to 31st December 2000; (2) SAGE detector…

高能物理 - 唯象学 · 物理学 2007-05-23 Koushik Ghosh , Probhas Raychaudhuri

Background: Decay constants of unstable nuclei and particles are quantum constants. Recent controversy on the existence (versus non-existence) of variability in the observation of decay rate can be settled by considering mixing in decay…

高能物理 - 唯象学 · 物理学 2022-04-26 Elsayed K. Elmaghraby

The solar brightness varies on timescales from minutes to decades. Determining the sources of such variations, often referred to as solar noise, is of importance for multiple reasons: a) it is the background that limits the detection of…

太阳与恒星天体物理 · 物理学 2017-11-28 A. I. Shapiro , S. K. Solanki , N. A. Krivova , R. H. Cameron , K. L. Yeo , W. K. Schmutz

Analyses of neutrino measurements acquired by the Super-Kamiokande Neutrino Observatory (SK, for the time interval 1996 - 2001) and of radon decay measurements acquired by the Geological Survey of Israel (GSI, for the time interval 2007 -…

高能物理 - 唯象学 · 物理学 2019-07-30 P. A. Sturrock , E. Fischbach , O. Piatibratova , G. Steinitz , F. Scholkmann

On 12 March 1996 we obtained observations of the quiet Sun with the SUMER instrument. The observa- tions were sequences of 15-20 second exposures of ultraviolet emission line profiles and of the neighboring continua. These data contain…

天体物理学 · 物理学 2009-10-30 Mats Carlsson , Philip G. Judge , Klaus Wilhelm

Recent observations of changes in radioactive decay rates associated with the annual variation of the Earth-Sun distance, with solar rotation, and particularly with solar storms, suggest that radioactive decay rates may be responding to…

天体物理仪器与方法 · 物理学 2017-02-14 Ephraim Fischbach , John T. Gruenwald

Recent evidence for oscillations of atmospheric neutrinos at Super-Kamiokande suggest, in the simplest see-saw interpretation, neutrino masses such that `just so' vacuum oscillations can explain the solar neutrino deficit. Super-K solar…

高能物理 - 唯象学 · 物理学 2009-10-31 Sheldon L. Glashow , Peter J. Kernan , Lawrence M. Krauss