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Over the last several years, experiments have conclusively demonstrated that neutrinos are massive and that they mix. There is now direct evidence for $\nu_e$s from the Sun transforming into other active flavors while en route to the Earth.…

High Energy Physics - Experiment · Physics 2009-11-11 A. W. P. Poon

After a short survey of the physics of solar neutrinos, giving an overview of hydrogen burning reactions, predictions of standard solar models and results of solar neutrino experiments, we discuss the solar-model-independent indications in…

Astrophysics · Physics 2011-01-04 V. Castellani , S. Degl'Innocenti , G. Fiorentini , M. Lissia , B. Ricci

Cosmic rays hitting the solar atmosphere generate neutrinos that interact and oscillate in the Sun and oscillate on the way to Earth. These neutrinos could potentially be detected with neutrino telescopes and will be a background for…

High Energy Astrophysical Phenomena · Physics 2017-07-11 Joakim Edsjo , Jessica Elevant , Rikard Enberg , Carl Niblaeus

The planets of our solar system formed from a gas-dust disk. However, there are some properties of the solar system that are peculiar in this context. First, the cumulative mass of all objects beyond Neptune (TNOs) is only a fraction of…

Astrophysics of Galaxies · Physics 2018-08-15 Susanne Pfalzner , Asmita Bhandare , Kirsten Vincke , Pedro Lacerda

Oscillations detected on the solar surface provide a unique possibility for investigations of the interior properties of a star. Through major observational efforts, including extensive observations from space, as well as development of…

Astrophysics · Physics 2008-11-26 J. Christensen-Dalsgaard

We consider the use of directionality in the search for monoenergetic sub-GeV neutrinos arising from the decay of stopped kaons, which can be produced by dark matter annihilation in the core of the Sun. When these neutrinos undergo…

High Energy Physics - Phenomenology · Physics 2017-01-13 Carsten Rott , Seongjin In , Jason Kumar , David Yaylali

If axions or axion-like particles exist and are detected, they will not only extend the standard model of particle physics but will also open a new way to probe their sources. Axion helioscopes aim to detect axions which are produced in the…

Solar and Stellar Astrophysics · Physics 2020-01-28 Joerg Jaeckel , Lennert J. Thormaehlen

The Sun provides a critical benchmark for the general study of stellar structure and evolution. Also, knowledge about the internal properties of the Sun is important for the understanding of solar atmospheric phenomena, including the solar…

Solar and Stellar Astrophysics · Physics 2021-05-17 Joergen Christensen-Dalsgaard

Measurements are needed of low energy, anti-neutrinos generated by possible neutron decay at the core of the Sun. The measurement will test the validity of a proposal that solar luminosity, neutrinos, and the solar wind are products of a…

Astrophysics · Physics 2016-08-30 O. Manuel

We know that giant planets played a crucial role in the making of our Solar System. The discovery of giant planets orbiting other stars is a formidable opportunity to learn more about these objects, what is their composition, how various…

Astrophysics · Physics 2009-11-10 Tristan Guillot

Isotope analyses on meteorites, planets, lunar samples, the solar wind, and solar flares show that heterogeneous debris of a supernova (SN) that exploded here 5 Gy ago formed the solar system. The Sun formed on the collapsed SN core. Iron…

Astrophysics · Physics 2007-05-23 O. Manuel

We search for an excess of electrons and positrons in the interplanetary space from the decays of heavy neutrinos produced in nuclear reactions in the Sun. Using measurements of the electron spectra in the MeV range from the Ulysses and…

High Energy Astrophysical Phenomena · Physics 2025-05-14 Marco Drewes , Jan Heisig , Valentin Weber

The Sun is a main source of high energy neutrinos. These neutrinos appear as secondary particles after the Sun absorbs high-energy cosmic rays, that find there a low-density environment (much thinner than our atmosphere) where most…

High Energy Physics - Phenomenology · Physics 2017-12-06 M. Masip

Axions generated thermally in the solar core can convert nearly directly to X-rays as they pass through the solar atmosphere via interaction with the magnetic field. The result of this conversion process would be a diffuse…

Solar and Stellar Astrophysics · Physics 2012-01-24 Hugh S. Hudson , L. W. Acton , E. DeLuca , I. G. Hannah , K. Reardon , K. Van Bibber

Much of our understanding of the internal structure of the Sun derives from so-called standard theoretical solar models. Unfortunately, none of those models agrees completely with observation. The discrepancy is commonly associated with…

Solar and Stellar Astrophysics · Physics 2019-04-10 Douglas Gough

The hypothesis of quantization of masses of the solar system planets is considered. It is supposed that the solar system was bearing during the Protosun squeezing from the red giant to a yellow dwarf. According to mass and orbit…

General Physics · Physics 2007-05-23 A. M. Ilyanok , I. A. Timoshchenko

As dark matter appears to comprise most of the Galactic mass, some of it may accumulate in the cores of stars, thereby making the Sun a laboratory for constraining various dark matter theories. We consider the effects on the solar structure…

Solar and Stellar Astrophysics · Physics 2025-05-06 Earl Patrick Bellinger , Matt E. Caplan

We consider liquid xenon dark matter detectors for searching a light scalar particle produced in the solar core, specifically one that couples to electrons. Through its interaction with the electrons, the scalar particle can be produced in…

High Energy Physics - Phenomenology · Physics 2020-09-01 Ranny Budnik , Oz Davidi , Hyungjin Kim , Gilad Perez , Nadav Priel

Implications of the recently discovered systematic abundance difference between the Sun and two collections of `solar twins' are discussed. The differences can be understood as an imprint on the abundances of the solar convection zone…

Solar and Stellar Astrophysics · Physics 2009-08-26 A. Nordlund

The Juno mission has provided an accurate determination of Jupiter's gravitational field, which has been used to obtain information about the planet's composition and internal structure. Several models of Jupiter's structure that fit the…

Earth and Planetary Astrophysics · Physics 2020-07-17 Shang-Fei Liu , Yasunori Hori , Simon Müller , Xiaochen Zheng , Ravit Helled , Doug Lin , Andrea Isella