Results 31 to 40 of about 20,645 (111)
The Fractal Geometry of the Cosmic Web and Its Formation
Advances in Astronomy, Volume 2019, Issue 1, 2019., 2019 The cosmic web structure is studied with the concepts and methods of fractal geometry, employing the adhesion model of cosmological dynamics as a basic reference. The structures of matter clusters and cosmic voids in cosmological N‐body simulations or the Sloan Digital Sky Survey are elucidated by means of multifractal geometry.
Jose Gaite, Geza Kovacs
wiley +1 more source
The Neutron as an Alternative Explanation for the Trans GZK Cosmic Rays [PDF]
Mod.Phys.Lett.A22:2593-2603,2007, 2006 We consider the possibility that the particles in the Ultra High Energy Cosmic Rays arriving to Earth might be neutrons instead of protons. We stress that in such case the argument for the GZK cutoff is weaker and that it is conceivable that neutrons would not be affected by it.
arxiv +1 more source
Propagation of UHE protons through a magnetized large scale structure [PDF]
J.Phys.Conf.Ser.120:062025,2008, 2007 The propagation of UHECRs is affected by the intergalactic magnetic fields that were produced during the course of the large scale structure formation of the universe. We adopt a novel model where the large scale extragalactic magnetic fields (EGMF) are estimated from local dynamic properties of the gas flows in hydrodynamic simulations of a ...
arxiv +1 more source
Carbon Energy, Volume 7, Issue 2, February 2025.In this review, we aim to provide a comprehensive understanding of plasma and its application in energy storage and conversion. The classification of plasma technologies and principles are summarized. Recent developments in the synthesis or modification of multiscale materials based on plasma techniques including conversion, doping, deposition, and ...
Chen Li +10 more
wiley +1 more source
Gamma‐Ray Burst Prompt Correlations
Advances in Astronomy, Volume 2018, Issue 1, 2018., 2018 The mechanism responsible for the prompt emission of gamma‐ray bursts (GRBs) is still a debated issue. The prompt phase‐related GRB correlations can allow discriminating among the most plausible theoretical models explaining this emission. We present an overview of the observational two‐parameter correlations, their physical interpretations, and their ...
M. G. Dainotti +3 more
wiley +1 more source
Evidence for a new light spin-zero boson from cosmological gamma-ray propagation? [PDF]
Phys.Rev.D76:121301,2007, 2007 Recent findings by Imaging Atmospheric Cherenkov Telescopes indicate a large transparency of the Universe to gamma rays, which can be hardly explained within the current models of extragalactic background light. We show that the observed transparency is naturally produced by an oscillation mechanism -- which can occur inside intergalactic magnetic ...
arxiv +1 more source
The Journal of Popular Culture, Volume 57, Issue 3, Page 175-188, June 2024.Abstract Hulu's Prey (2022), the fifth installment of the Predator franchise, is set in 1719 and features a Comanche female protagonist. The setting is unlike the 1987 Predator and its sequels, with their hardbody machismo and conservative politics. We argue that Prey is a small but significant step in Hollywood, but its inclusivity comes at a price ...
César Albarrán‐Torres, Andrew Lynch
wiley +1 more source
Gamma‐Ray Bursts: A Radio Perspective
Advances in Astronomy, Volume 2016, Issue 1, 2016., 2016 Gamma‐ray bursts (GRBs) are extremely energetic events at cosmological distances. They provide unique laboratory to investigate fundamental physical processes under extreme conditions. Due to extreme luminosities, GRBs are detectable at very high redshifts and potential tracers of cosmic star formation rate at early epoch. While the launch of Swift and
Poonam Chandra, WeiKang Zheng
wiley +1 more source
The Adventures of the Rocketeer: Accelerated Motion Under the Influence of Expanding Space [PDF]
, 2009 It is well known that interstellar travel is bounded by the finite speed of light, but on very large scales any rocketeer would also need to consider the influence of cosmological expansion on their journey. This paper examines accelerated journeys within the framework of Friedmann- Lemaitre-Robertson-Walker universes, illustrating how the duration of ...
arxiv +1 more source
Interacting Dark Matter and q‐Deformed Dark Energy Nonminimally Coupled to Gravity
Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016 In this paper, we propose a new approach to study the dark sector of the universe by considering the dark energy as an emerging q‐deformed bosonic scalar field which is not only interacting with the dark matter, but also nonminimally coupled to gravity, in the framework of standard Einsteinian gravity.
Emre Dil, Sergei D. Odintsov
wiley +1 more source