Results 111 to 120 of about 469,962 (235)

Extended Scenarios for Solar Radio Emissions With Downshifted Electron Beam Plasma Excitations

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.
Abstract First‐principle studies of radiative processes aimed at explaining the origin of type II and type III solar radio bursts raise questions on the implications of downshifted electron beam plasma excitations with frequency (slightly) below the plasma frequency ω≲ωpe $\left(\omega \lesssim {\omega }_{pe}\right)$ in the generation of radio ...
M. Lazar   +4 more
wiley   +1 more source

Nuclear Problems in Astrophysics

open access: yes, 2003
These lectures, presented at the International School of Physics ``Enrico Fermi,'' deal with two major themes. The first is the remarkable story of the solar neutrino problem, which (along with the atmospheric neutrino anomaly) recently led to the discovery of massive neutrinos and neutrino oscillations, physics beyond the standard model.
openaire   +3 more sources

Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post‐2011 ACE Data Limitations

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Upcoming imaging missions—NASA's LEXI and ESA/CAS's SMILE—will target solar wind charge exchange X‐ray (SWCX) emission from Earth's magnetosheath. This emission is generated by highly charged ions colliding with neutrals in Earth's exosphere.
D. Koutroumpa   +5 more
wiley   +1 more source

LUNA: Present status and future prospects

open access: yesEPJ Web of Conferences, 2016
One of the main ingredients of nuclear astrophysics is the knowledge of the thermonuclear reactions responsible for powering the stellar engine and for the synthesis of the chemical elements.
Caciolli A.
doaj   +1 more source

Quark matter and nuclear astrophysics: Recent developments [PDF]

open access: yesEPJ Web of Conferences
Does deconfined cold quark matter occur in nature? This is currently one of the fundamental open questions in nuclear astrophysics. In these proceedings, I review the current state-of-the-art techniques to address this question in a model-agnostic manner,
Gorda Tyler
doaj   +1 more source

Thunderstorm Charge Distribution Determination Using Cosmic Rays Induced Air Showers and Lightning Imaging at LOFAR

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract The LOw Frequency ARray (LOFAR) radio telescope possesses the unique capability to measure ultra‐high energy cosmic rays as well as image lightning discharges. This study presents a comparison between the inferred thunderstorm charge structures derived from cosmic‐ray measurements and from lightning flashes.
T. N. G. Trinh   +26 more
wiley   +1 more source

THE TROJAN HORSE METHOD IN NUCLEAR ASTROPHYSICS [PDF]

open access: green, 2004
C. Spitaleri   +7 more
  +4 more sources

Nuclear forces from chiral effective field theory [PDF]

open access: yesarXiv, 2007
In this lecture series, I present the recent progress in our understanding of nuclear forces in terms of chiral effective field theory.
arxiv  

Laboratory Observations of Hall Magnetic Field in Electron‐Only Magnetic Reconnection With a Guide Field

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Recently, electron‐only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron‐only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device.
Fa Yang   +13 more
wiley   +1 more source

The Influence of Nuclear Reactions and Nuclear Structure in Astrophysics

open access: yesEPJ Web of Conferences, 2017
Nuclear reactions play an important role for the energy production and the nucleosynthesis in stars. New facilities, able to accelerate radioactive nuclei or high-intensity stable beams have allowed us to measure in the laboratory reactions involving ...
Rehm K. E.
doaj   +1 more source

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