English
Related papers

Related papers: From Cherenkov Radiation to Generalized Super-Cher…

200 papers

The presence of nearby discrete cosmic-ray (CR) sources can lead to many interesting effects on the observed properties of CRs. In this paper, we study about the possible effects on the CR primary and secondary spectra and also the…

Astrophysics · Physics 2009-11-13 Satyendra Thoudam

The time-dependent nonlinear kinetic theory for cosmic ray (CR) acceleration in supernova remnants (SNRs) is applied studying the properties of the synchrotron emission from SNRs, in particular, the surface brightness-diameter ($\Sigma-D$)…

Astrophysics · Physics 2009-11-10 E. G. Berezhko , H. J. Völk

The paper investigates the overall and detailed features of cosmic ray (CR) spectra in the knee region using the scenario of nuclei-photon interactions around the acceleration sources. Young supernova remnants can be the physical realities…

High Energy Astrophysical Phenomena · Physics 2015-03-13 Bo Wang , Qiang Yuan , Chao Fan , Jianli Zhang , Hongbo Hu , Xiaojun Bi

The correlation between baryon number and strangeness is used to discern the nature of the deconfined matter produced at vanishing chemical potential in high-energy nuclear collisions at the BNL RHIC. Comparisons of results of various…

Nuclear Theory · Physics 2009-11-11 A. Majumder , V. Koch , J. Randrup

For usual radiation the integral of the electric field strength over the time is zero. First time the possibility of unipolar radiation generation has been considered theoretically in the paper [EG.Bessonov. Preprint No 76 of the Lebedev…

Accelerator Physics · Physics 2020-12-30 G. Naumenko , M. Shevelev , K. E. Popov

We have obtained general expressions for the intensity of radiation, decelerating force, the rate of heating and acceleration of a small polarizable particle under the conditions of Cherenkov friction: at relativistic motion parallel to the…

Mesoscale and Nanoscale Physics · Physics 2017-08-04 G. V. Dedkov , A. A. Kyasov

Type II-P supernov\ae~(SNe), the most common core-collapse SNe type, result from the explosions of red supergiant stars. Their detection in the radio domain testifies of the presence of relativistic electrons, and shows that they are…

High Energy Astrophysical Phenomena · Physics 2022-02-09 P. Cristofari , A. Marcowith , M. Renaud , V. V. Dwarkadas , V. Tatischeff , G. Giacinti , E. Peretti , H. Sol

The spectrum of extra-galactic cosmic rays (CRs) is expected to follow the Greisen-Zatsepin-Kuzmin (GZK) cutoff at about 5x10^10 GeV which results from energy losses of charged nuclei in the cosmic microwave background. So far the…

Astrophysics · Physics 2007-05-23 Markus Ahlers

Future galactic supernovae will provide an extremely long baseline for studying the properties and interactions of neutrinos. In this paper, we discuss the possibility of using such an event to constrain (or discover) the effects of exotic…

High Energy Astrophysical Phenomena · Physics 2010-10-01 Chris Kelso , Dan Hooper

Within the scope of the relativistic quantum theory for electron-laser interaction in a medium and using the resonant approximation for the two degenerated states of an electron in a monochromatic radiation field [1] a nonperturbative…

Quantum Physics · Physics 2007-05-23 H. K. Avetissian , A. L. Khachatryan , G. F. Mkrtchian

Cherenkov radiation in uniformly moving homogenous isotropic medium without dispersion is studied. Formula for the spectrum of Cherenkov radiation of fermion was derived for the case when the speed of the medium is less than the speed of…

Accelerator Physics · Physics 2011-11-29 Mihail Alfimov

According to the most popular model for the origin of cosmic rays (CRs), supernova remnants (SNRs) are the site where CRs are accelerated. Observations across the electromagnetic spectrum support this picture through the detection of…

High Energy Astrophysical Phenomena · Physics 2021-01-27 S. Orlando , M. Miceli , S. Ustamujic , A. Tutone , E. Greco , O. Petruk , F. Bocchino , G. Peres

Transrelativistic supernovae (SNe), which are likely driven by central engines via jets or winds, have been among candidate sources of ultrahigh-energy cosmic rays (UHECRs). We investigate acceleration and survival of UHECR nuclei in the…

High Energy Astrophysical Phenomena · Physics 2019-11-13 B. Theodore Zhang , Kohta Murase

The paper is devoted to the study of the influence of crystalline lattice distortions due to external excitations (acoustic vibrations, temperature gradient, etc.) on the Quasicerenkov radiation. Equations describing Quasicerenkov radiation…

Accelerator Physics · Physics 2007-05-23 H. A. Aslanyan , A. R. Mkrtchyan , A. H. Mkrtchian

It is shown that the radio and gamma-ray emission observed from newly-found "GeV-bright" supernova remnants (SNRs) can be explained by a model, in which a shocked cloud and shock-accelerated cosmic rays (CRs) frozen in it are simultaneously…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Yasunobu Uchiyama , Roger Blandford , Stefan Funk , Hiroyasu Tajima , Takaaki Tanaka

Any considerations on propagation of particles through the Universe must involve particle interactions: processes leading to production of particle cascades. While one expects existence of such cascades, the state of the art cosmic-ray…

A new analysis of cosmic ray (CR) data collected by the SOKOL experiment in space found that the deuteron-to-helium ratio at energies between 500 and 2000 GeV/nucleon takes the value d/He ~ 1.5. As we will show, this result cannot be…

High Energy Astrophysical Phenomena · Physics 2018-07-31 Nicola Tomassetti , Jie Feng

Strange stars (SSs) are compact objects made of deconfined quarks. It is hard to distinguish SSs from neutron stars as a thin crust composed of normal hadronic matter may exist and obscure the whole surface of the SS. Here we suggest that…

High Energy Astrophysical Phenomena · Physics 2021-08-17 Jin-Jun Geng , Bing Li , Yong-Feng Huang

The general aim of this work is to obtain the lateral distribution of atmospheric Cherenkov light in extensive air showers produced by different primary particles precisely by. protons, Helium, Iron, Oxygen, Carbon, Nitrogen, Calcium,…

Astrophysics · Physics 2007-05-23 A. Mishev , J. Stamenov

The origin of the ultrahigh-energy (UHE) cosmic rays (CRs) from the second knee ($\sim6\times10^{17}$eV) above in the CR spectrum is still unknown. Recently, there has been growing evidence that a peculiar type of supernovae, called…

Astrophysics · Physics 2008-12-18 Xiang-Yu Wang , Soebur Razzaque , Peter Meszaros , Zi-Gao Dai
‹ Prev 1 3 4 5 6 7 10 Next ›