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Related papers: Solar models and electron screening

200 papers

Solar wind properties are determined by the conditions of their solar source region and transport history. Solar wind parameters, such as proton speed, proton density, proton temperature, magnetic field strength, and the charge state…

Solar and Stellar Astrophysics · Physics 2023-10-11 Maximilian Hecht , Verena Heidrich-Meisner , Lars Berger , Robert F. Wimmer-Schweingruber

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…

Astrophysics · Physics 2009-10-30 Sylvie Vauclair

An efficient descriptor model for fast screening of potential materials for solar cell applications is presented. It works for both excitonic and non-excitonic solar cells materials, and in addition to the energy gap it includes the…

We describe how to consistently incorporate solar model uncertainties, along with experimental errors and correlations, when analyzing solar neutrino data to derive confidence limits on parameter space for proposed solutions of the solar…

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

Standard solar models (SSMs) provide a reference framework across a number of research fields: solar and stellar models, solar neutrinos, particle physics the most conspicuous among them. The accuracy of the physical description of the…

Solar and Stellar Astrophysics · Physics 2016-05-04 Aldo Serenelli

Modified theories of gravity that offer viable models for dark energy often rely on mechanisms that screen their effects in high density environments. From this perspective, it would appear that, once solar system constraints are satisfied,…

General Relativity and Quantum Cosmology · Physics 2020-07-24 Bernardo F. de Aguiar , Raissa F. P. Mendes

Using reconstructed opacities, we construct solar models with low heavy-element abundance. Rotational mixing and enhanced diffusion of helium and heavy elements are used to reconcile the recently observed abundances with helioseismology.…

Astrophysics · Physics 2011-02-11 W. M. Yang , S. L. Bi

The aim of this work is to summarize the main underlying assumptions, simplifications and uncertainties while studying solar energetic particles (SEPs). In general, numerous definitions are used for the evaluation of a given SEP parameter…

Solar and Stellar Astrophysics · Physics 2018-12-05 R. Miteva , S. W. Samwel , M. V. Costa-Duarte

The solar interior has been scrutinized by two different and independent probes during the last twenty years with important revisions of the solar model, including a recent heavy element abundance revision. Today, we get a quantitatively…

Astrophysics · Physics 2009-11-11 S. Turck-Chieze , S. Couvidat , L. Piau

Tests, independent of any solar model, can be made of whether solar neutrino experiments are consistent with the minimal Standard Model (stable, massless neutrinos). If the experimental uncertainties are correctly estimated and the sun is…

Nuclear Theory · Physics 2014-11-18 Karsten M. Heeger , R. G. H. Robertson

In a Dynamic Solar Model (DSM) the temperature dependences of the pp cycle neutrinos will be different from the ones determined by solar model calculations with the luminosity constraint. Instead of the usual neutrino fluxes pp ~ T^{-1/2},…

Astrophysics · Physics 2007-05-23 Attila Grandpierre

Semi-empirical models of the solar atmosphere are used to study the radiative environment of any planet in our solar system. There is a need for reliable atomic data for neutral atoms and ions in the atmosphere to obtain improved calculated…

Solar and Stellar Astrophysics · Physics 2022-01-19 J. I. Peralta , M. C. Vieytes , A. M. P. Mendez , D. M. Mitnik

The fusion enhancement factor due to screening in the solar plasma is calculated. We use the finite temperature Green's function method and a self consistent mean field approximation. We reduce this to one center problems, because in the…

Astrophysics · Physics 2009-10-31 L. Wilets , B. G. Giraud , M. J. Watrous , J. J. Rehr

We consider the inverse problem of recovering the spherically symmetric sound speed, density and attenuation in the Sun from the observations of the acoustic field randomly excited by turbulent convection. We show that observations at two…

Analysis of PDEs · Mathematics 2020-06-24 A. D. Agaltsov , T. Hohage , R. G. Novikov

We estimate the main-sequence age and heavy-element abundance of the Sun by means of an asteroseismic calibration of theoretical solar models using only low-degree acoustic modes from the BiSON. The method can therefore be applied also to…

Solar and Stellar Astrophysics · Physics 2015-05-30 G. Houdek , D. O. Gough

This paper reviews the constraints on the solar neutrino mixing parameters with data collected by the Homestake, SAGE, GALLEX, Kamiokande, SuperKamiokande, Borexino and SNO experiments. An emphasis will be given to the global solar neutrino…

High Energy Physics - Experiment · Physics 2010-12-14 Alain Bellerive

By using a phenomenological field theory of nucleon-nucleon interactions, Oberhummer et al. found a cross section of p+p $\to$ d + e$^+$ + $\nu _e$ about 2.9 times that given by the potential approach and adopted in Standard Solar Model…

Astrophysics · Physics 2009-10-30 S. Degl'Innocenti , G. Fiorentini , B. Ricci

The solar abundance controversy inspires renewed investigations of the basic physics used to develop solar models. Here we examine the correction to the proton-proton reaction rate due to dynamic screening effects. Starting with the dynamic…

Solar and Stellar Astrophysics · Physics 2011-02-25 Katie Mussack , Werner Dappen

Dark matter detectors will soon be sensitive to Solar neutrinos via two distinct channels: coherent neutrino-nucleus scattering and neutrino electron elastic scattering. We establish an analysis method for extracting Solar model properties…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 J. Billard , L. Strigari , E. Figueroa-Feliciano

With latest experimental data the solar neutrino problem enters new phase when crucial aspects of the problem can be formulated in an essentially (solar) model independent way. Original neutrino fluxes can be considered as free parameters…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Yu. Smirnov