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Recent reports of periodic fluctuations in nuclear decay data of certain isotopes have led to the suggestion that nuclear decay rates are being influenced by the Sun, perhaps via neutrinos. Here we present evidence for the existence of an…

High Energy Physics - Phenomenology · Physics 2017-08-23 Ephraim Fischbach , Peter A. Sturrock , Jere H. Jenkins , Daniel Javorsek , John B. Buncher , John T. Gruenwald

Intense fluxes of neutrinos are emitted by the hot neutron star produced in a supernova. The electron neutrino and antineutrino capture reactions on neutrons and protons, respectively, provide heating to drive a wind from the hot neutron…

Astrophysics · Physics 2009-10-31 Yong-Zhong Qian

We present new results on the structure of the solar core, obtained with new sets of frequencies of solar low-degree p modes obtained from the BiSON network. We find that different methods used in extracting the different sets of…

Solar and Stellar Astrophysics · Physics 2009-07-22 Sarbani Basu , William J. Chaplin , Yvonne Elsworth , Roger New , Aldo M. Serenelli

The X-ray emission from the Sun reveals a very dynamic hot atmosphere, the corona, which is characterized by a complex morphology and broad range of timescales of variability and spatial structuring. The solar magnetic fields play a…

Solar and Stellar Astrophysics · Physics 2022-06-09 Paola Testa , Fabio Reale

The four operating solar neutrino experiments confirm the hypothesis that the energy source for solar luminosity is hydrogen fusion. However, the measured rate for each of the four solar neutrino experiments differs significantly (by…

Astrophysics · Physics 2015-06-24 John N. Bahcall

The neutrino flux from the sun is predicted to have a CNO-cycle contribution as well as the known pp-chain component. Previously, only the fluxes from beta+ decays of 13N, 15O, and 17F have been calculated in detail. Another neutrino…

High Energy Physics - Phenomenology · Physics 2009-11-10 L. C. Stonehill , J. A. Formaggio , R. G. H. Robertson

The Sun is a source of high energy neutrinos (E > 10 GeV) produced by cosmic ray interactions in the solar atmosphere. We study the impact of three-flavor oscillations (in vacuum and in matter) on solar atmosphere neutrinos, and calculate…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. L. Fogli , E. Lisi , A. Mirizzi , D. Montanino , P. D. Serpico

The studies of solar neutrinos and helioseismology have been closely intertwined since the first neutrino experiment and the first observations of solar oscillations in the sixties. Early detailed helioseismic analyses provided strong…

Solar and Stellar Astrophysics · Physics 2020-01-08 J. Christensen-Dalsgaard

The first lecture describes the conflicts between the combined standard model (minimal electroweak and solar) predictions and the results of solar neutrino experiments. The second lecture discusses the possibilities for detecting with solar…

High Energy Physics - Phenomenology · Physics 2007-05-23 John Bahcall

The theory of stellar structure can be used to identify the most plausible mechanisms for the irradiance variations associated with the solar cycle. Changes in surface emissivity, i.e. the reduced cooling in spots and enhanced emission by…

Astrophysics · Physics 2007-05-23 H. C. Spruit

We discuss a limitation on extracting bounds on the scattering cross section of dark matter with nucleons, using neutrinos from the Sun. If the dark matter particle is sufficiently light (less than about 4 GeV), the effect of evaporation is…

High Energy Physics - Phenomenology · Physics 2013-07-09 Giorgio Busoni , Andrea De Simone , Wei-Chih Huang

Polarization of photons emitted in weak decays occuring at distant star allows to determine whether this star is made from antimatter. Even more promissing is the observation of neutrinos (antineutrinos) produced at neutronization…

High Energy Physics - Phenomenology · Physics 2015-06-17 A. D. Dolgov , V. A. Novikov , M. I. Vysotsky

The flux of neutrino-induced muons at the surface of the Earth is calculated from injection of neutralino annihilation products in the core of the Sun and the Earth. An improved treatment of neutrino propagation through the Sun is performed…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. Edsjo

Remote sensing observations meet some limitations when used to study the bulk atmospheric composition of the giant planets of our solar system. A remarkable example of the superiority of in situ probe measurements is illustrated by the…

The high resolution non-dispersive spectroscopy and unprecedented sensitivity of Athena+ will revolutionize solar system observing: the origin of the ions producing Jupiter's X-ray aurorae via charge exchange will be conclusively…

Observed hyperbolic minor bodies might have an interstellar origin, but they can be natives of the Solar system as well. Fly-bys with the known planets or the Sun may result in the hyperbolic ejection of an originally bound minor body; in…

Earth and Planetary Astrophysics · Physics 2018-03-20 C. de la Fuente Marcos , R. de la Fuente Marcos , S. J. Aarseth

The most pristine remnants of the Solar system's planet formation epoch orbit the Sun beyond Neptune, the small bodies of the trans-Neptunian object populations. The bulk of the mass is in ~100 km objects, but objects at smaller sizes have…

Earth and Planetary Astrophysics · Physics 2024-02-19 Andrew Shannon , Alain Doressoundiram , Françoise Roques , Bruno Sicardy , Quentin Kral

We derive analytic approximations for the neutrino luminosities and the heat capacities of neutron stars with isothernal nucleon cores as functions of the mass and radius of stars. The neutrino luminosities are approximated for the three…

High Energy Astrophysical Phenomena · Physics 2017-09-13 D. D. Ofengeim , M. Fortin , P. Haensel , D. G. Yakovlev , J. L. Zdunik

The observed deficit of $\rm ^8B$ solar neutrinos may call for an improved standard model of the sun or an expanded standard model of particle physics ({\it e.g.,} with neutrino masses and mixing). In the former case, contemporary fluid…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. De Rújula , S. L. Glashow

We discuss the gravitational lensing of neutrinos by astrophysical objects. Unlike photons, neutrinos can cross a stellar core; as a result, the lens quality improves. We also estimate the depletion of the neutrino flux after crossing a…

High Energy Physics - Phenomenology · Physics 2009-11-07 R. Escribano , J. -M. Frere , D. Monderen , V. Van Elewyck