Results 51 to 60 of about 115,080 (337)
Vlasov methods in space physics and astrophysics [PDF]
Living Reviews in Computational Astrophysics, 2018 This paper reviews Vlasov-based numerical methods used to model plasma in space physics and astrophysics. Plasma consists of collectively behaving charged particles that form the major part of baryonic matter in the Universe.
M. Palmroth +9 more
semanticscholar +1 more source
Visualization in astrophysics [PDF]
, 1989 This paper reports on progress we have made in modelling cosmic X·ray sources on supercomputers. The results we present are meant to serve as an example for the fact that sophisticated visualization techniques play a crucial role in scientific computing.
Ertl, Thomas +8 more
openaire +3 more sources
The astrophysics of nanohertz gravitational waves [PDF]
The Astronomy and Astrophysics Review, 2018 Pulsar timing array (PTA) collaborations in North America, Australia, and Europe, have been exploiting the exquisite timing precision of millisecond pulsars over decades of observations to search for correlated timing deviations induced by gravitational ...
S. Burke-Spolaor, S. Taylor
semanticscholar +1 more source
NO ASTROPHYSICAL DYADOSPHERES [PDF]
The Eleventh Marcel Grossmann Meeting, 2008 64 pages ...
openaire +3 more sources
Estimated equivalent radiation dose at different altitudes in Earth’s atmosphere
Solar-Terrestrial Physics, 2022 The paper reports the results of simulation of cosmic ray proton transport through Earth’s atmosphere. The main objective of this work is to obtain characteristics of secondary particle fluxes at different altitudes and to convert them to equivalent dose
Maurchev E. A. +4 more
doaj +1 more source
Generation of High‐Brilliance Polarized γ‐Rays Via Vacuum Dichroism‐Assisted Vacuum Birefringence
Advanced Science, EarlyView.A novel method is proposed for generating such γ‐photon beams via the vacuum‐dichroism‐assisted quantum vacuum birefringence effect, only utilizing well‐established unpolarized electron beams and solving the critical problem of demanding polarized ones.
Chong Lv +6 more
wiley +1 more source
Astrophysical symmetries [PDF]
Proceedings of the National Academy of Sciences, 1996 Astrophysical objects, ranging from meteorites to the entire universe, can be classified into about a dozen characteristic morphologies, at least as seen by a blurry eye. Some patterns exist over an enormously wide range of distance scales, apparently as a result of similar underlying physics.
openaire +5 more sources
Astrophysical Naturalness [PDF]
Frontiers in Astronomy and Space Sciences, 2022 I suggest that stars introduce mass and density scales that lead to “naturalness” in the Universe. Namely, two ratios of order unity. 1) The combination of the stellar mass scale, M*(c, ℏ, G, mp, me, e, …), with the Planck mass, MPl, and the Chandrasekhar mass leads to a ratio of order unity that reads NPl*≡MPl/(M*mp2)1/3≃0.15−3, where mp is the proton
openaire +3 more sources
Laboratory Astrophysics and the State of Astronomy and Astrophysics [PDF]
Astrophysics, 2009 Position paper submitted by the AAS Working Group on Laboratory Astrophysics (WGLA) to the State of the Profession (Facilities, Funding and Programs Study Group) of the Astronomy and Astrophysics Decadal Survey (Astro2010)
WGLA, AAS +12 more
openaire +4 more sources
A Periodic Error Correction Method for Terahertz Coded‐Aperture Imaging
Advanced Intelligent Systems, EarlyView.A physics‐constrained unsupervised learning framework with periodic error correction is proposed for terahertz coded‐aperture imaging. The method improves reconstruction robustness against noise and model mismatch, while reducing reliance on large‐scale labeled data.
Hongxu Wu +8 more
wiley +1 more source