Towards the first plasma-electron screening experiment
Frontiers in Physics, 2023 The enhancement of fusion reaction rates in a thermonuclear plasma by electron screening of the Coulomb barrier is an important plasma-nuclear effect that is present in stellar models but has not been experimentally observed.
Daniel T. Casey +11 more
doaj +1 more source
MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS [PDF]
, 2013 We substantially update the capabilities of the open source software package Modules for Experiments in Stellar Astrophysics (MESA), and its one-dimensional stellar evolution module, MESAstar.
B. Paxton +10 more
semanticscholar +1 more source
Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation [PDF]
Astrophysical Journal Supplement Series, 2019 We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the nonlinear radial stellar pulsations that characterize RR Lyrae, Cepheids ...
B. Paxton +18 more
semanticscholar +1 more source
The neutrino magnetic moment portal: cosmology, astrophysics, and direct detection [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We revisit the physics of neutrino magnetic moments, focusing in particular on the case where the right-handed, or sterile, neutrinos are heavier (up to several MeV) than the left-handed Standard Model neutrinos.
V. Brdar +3 more
semanticscholar +1 more source
Testing Noncommutativity-Like Model as a Galactic Density Profile
Galaxies, 2021 Noncommutative-like model (NC-like) is an interesting alternative inspired by string theory to understand and describe the velocity rotation curves of galaxies without the inclusion of dark matter particles.
Juan Jordi Ancona-Flores +2 more
doaj +1 more source
Modules for Experiments in Stellar Astrophysics ( ): Convective Boundaries, Element Diffusion, and Massive Star Explosions [PDF]
, 2017 We update the capabilities of the software instrument Modules for Experiments in Stellar Astrophysics (MESA) and enhance its ease of use and availability.
B. Paxton +17 more
semanticscholar +1 more source
ASTROPHYSICS OF WORMHOLES [PDF]
International Journal of Modern Physics D, 2007 We consider the hypothesis that some active galactic nuclei and other compact astrophysical objects may be current or former entrances to wormholes (WHs). A broad mass spectrum for astrophysical WHs is possible. We consider various new models of the static WHs including WHs maintained mainly by an electromagnetic field.
Igor D. Novikov +3 more
openaire +3 more sources
Metals, 2015 Planets and stars are often capable of generating their own magnetic fields. This occurs through dynamo processes occurring via turbulent convective stirring of their respective molten metal-rich cores and plasma-based convection zones.
Adolfo Ribeiro +3 more
doaj +1 more source
Practical Limits on Nanosatellite Telescope Pointing: The Impact of Disturbances and Photon Noise
Frontiers in Astronomy and Space Sciences, 2021 Accurate and stable spacecraft pointing is a requirement of many astronomical observations. Pointing particularly challenges nanosatellites because of an unfavorable surface area–to-mass ratio and a proportionally large volume required for even the ...
Ewan S. Douglas +2 more
doaj +1 more source
Radiochemical capabilities for astrophysics experiments at the national ignition facility
Frontiers in Physics, 2022 The Nuclear and Radiochemistry Group at Lawrence Livermore National Laboratory (LLNL) has developed a suite of diagnostics and techniques that can be used for astrophysics experiments at the National Ignition Facility (NIF).
John D. Despotopulos +5 more
doaj +1 more source