Results 91 to 100 of about 458,052 (359)
Chiral Matter, 2023 Chirality, or handedness, enters astrophysics in three distinct ways. Magnetic field and vortex lines tend to be helical and have a systematic twist in the northern and southern hemispheres of a star or a galaxy. Helicity is here driven by external factors.
openaire +2 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez +2 more
wiley +1 more source
Fundamental Physics and Relativistic Laboratory Astrophysics with Extreme Power Lasers
, 2012 The prospects of using extreme relativistic laser-matter interactions for laboratory astrophysics are discussed. Laser-driven process simulation of matter dynamics at ultra-high energy density is proposed for the studies of astrophysical compact objects ...
Bulanov, S. V., Esirkepov, T. Zh.
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Uncertainties in Ground‐Based Visual Double Star Measures—II Accuracy of Measures
Astronomische Nachrichten, EarlyView.ABSTRACT Letchford and White 2025, Paper I, determined the uncertainties in ground‐based historic measures of double stars. In this paper, the accuracy of 26,205 ground‐based measures of 857 visual double stars, made since ∼$$ \sim $$1780, is determined relative to space‐based measures based on positions and proper motion from the HIPPARCOS (via ASCC ...
Graeme L. White, Roderick R. Letchford
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AI, 2022 Diverse phenomena such as positron annihilation in the Milky Way, merging binary neutron stars, and dark matter can be better understood by studying their gamma ray emission.
Brandon Khek +3 more
doaj +1 more source
Phenomenology, astrophysics and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity [PDF]
, 1998 We recently proposed a solution to the hierarchy problem not relying on low-energy supersymmetry or technicolor. Instead, the problem is nullified by bringing quantum gravity down to the TeV scale.
N. Arkani-Hamed, S. Dimopoulos, G. Dvali
semanticscholar +1 more source
A Romantic Genius? The Experience of Knowledge that Shaped Werner Heisenberg's Scientific Persona
Berichte zur Wissenschaftsgeschichte, EarlyView.In 1976, the year that Werner Heisenberg passed away, Armin Hermann published a short biography, titled Werner Heisenberg in Selbstzeugnissen und Bilddokumenten. Since then, historians and biographers have offered their accounts on Heisenberg's life and his contributions to modern physics. Many of these biographies present Heisenberg as a genius.
Elena Schaa
wiley +1 more source
Effective geometry in Astrophysics
, 2004 The effective metric is introduced by means of two examples (non-linear electromagnetism and hydrodynamics),along with applications in Astrophysics.
Barcelo C. +8 more
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Physics ReportsStars have been recognized as optimal laboratories to probe axion properties. In the last decades there have been significant advances in this field due to a better modelling of stellar systems and accurate observational data. In this work we review the current status of constraints on axions from stellar physics.
Pierluca Carenza +4 more
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ChemPhysChem, Volume 26, Issue 6, March 15, 2025.The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
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