Results 1 to 10 of about 145,288 (313)

Spin and Maximal Acceleration

open access: yesGalaxies, 2017
We study the spin current tensor of a Dirac particle at accelerations close to the upper limit introduced by Caianiello. Continual interchange between particle spin and angular momentum is possible only when the acceleration is time-dependent.
Giorgio Papini
doaj   +1 more source

Light, Gravity and Matter (with emphasis on thermo-gravity waves) [PDF]

open access: yesINCAS Bulletin
What are light, gravity, and regenerating matter? Where do they originate and where do they go? The answers to these questions lie in one of the most powerful equations ever discovered: Euler's formula (i.e., complex analysis).
Horia DUMITRESCU   +2 more
doaj   +1 more source

Calculating the ionization rate induced by GCR and SCR protons in Earth’s atmosphere

open access: yesSolar-Terrestrial Physics, 2019
This paper explores the applied use of the RUSCOSMICS software package [http://ruscosmics.ru] designed to simulate propagation of primary cosmic ray (CR) particles through Earth’s atmosphere and collect information about characteristics of their ...
Maurchev E.A.   +4 more
doaj   +1 more source

The modern paradigm shift in basic science: conceptual meaning Современые парадигмальные сдвиги в фундаментальной науке: мировозренческое значение Сучасне парадигмальне зрушення в фундаментальній науці: світоглядне значення

open access: yesAntropologìčnì Vimìri Fìlosofsʹkih Doslìdžen', 2012
The article analyzes the paradigmatic shift in contemporary basic science. Analyzed the worldview of the last discoveries in fundamenta lphysics and astrophysics.Статья посвящена анализу парадигмальных сдвигов в современной фундаментальной науке ...
T. V. Gorbatiuk
doaj  

Exploring acknowledgement practices in English-medium astrophysics research papers: Implications on authorship

open access: yesRevista de Lenguas para Fines Específicos, 2015
This article reports the findings of a diachronic study of acknowledgement practices in 300 randomly collected research papers published during three different periods (1998, 2004 and 2012) in the most prestigious American and European astrophysics ...
David I. Méndez, M. Ángeles Alcaraz
doaj  

Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions

open access: yesLiving Reviews in Relativity, 2012
A wealth of astronomical data indicate the presence of mass discrepancies in the Universe. The motions observed in a variety of classes of extragalactic systems exceed what can be explained by the mass visible in stars and gas. Either (i) there is a vast
Stacy S. McGaugh, Benoît Famaey
doaj  

Unlocking the Future of X-Ray Polarimetry with IXPE: Lessons Learned and Next Steps

open access: yesParticles
This paper discusses issues encountered during the early development of the instrument on the Imaging X-ray Polarimetry Explorer (IXPE), a NASA–ASI Small Explorer mission launched on 9 December 2021.
Paolo Soffitta   +9 more
doaj   +1 more source

Relativistic Binaries in Globular Clusters

open access: yesLiving Reviews in Relativity, 2006
The galactic population of globular clusters are old, dense star systems, with a typical cluster containing 10^4 - 10^7 stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars,
Benacquista Matthew J.
doaj  

Physics of Neutron Star Crusts

open access: yesLiving Reviews in Relativity, 2008
The physics of neutron star crusts is vast, involving many different research fields, from nuclear and condensed matter physics to general relativity.
Chamel Nicolas, Haensel Pawel
doaj  

The Imaging X-ray Polarimetry Explorer (IXPE) and New Directions for the Future

open access: yesInstruments
An observatory dedicated to X-ray polarimetry has been operational since 9 December 2021. The Imaging X-ray Polarimetry Explorer (IXPE), a collaboration between NASA and ASI, features three X-ray telescopes equipped with detectors sensitive to linear ...
Paolo Soffitta
doaj   +1 more source

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