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We discuss the generic characteristics of stochastic particle acceleration by a fully developed turbulence spectrum and show that resonant interactions of particles with high speed waves dominate the acceleration process. To produce the…

Astrophysics · Physics 2009-11-13 Siming Liu , Zhong-Hui Fan , Christopher L. Fryer

$\alpha$-clustering study since the pioneering discovery of $^{12}$C+$^{12}$C molecular resonances half a century ago. Our knowledge on physics of nuclear molecules has increased considerably and nuclear clustering remains one of the most…

Nuclear Experiment · Physics 2017-08-23 C. Beck

Recent progress in numerical simulations of thermonuclear supernova explosions brings up a unique opportunity in studying the progenitors of Type Ia supernovae. Coupling state-of-the-art explosion models with detailed hydrodynamical…

High Energy Astrophysical Phenomena · Physics 2015-03-26 D. Kosenko , W. Hillebrandt , M. Kromer , S. I. Blinnikov , R. Pakmor , J. S. Kaastra

Most neutron stars are expected to be born in supernovae, but only about half of supernova remnants (SNRs) are associated with a compact object. In many cases, a supernova progenitor may have resulted in a black hole. However, there are…

High Energy Astrophysical Phenomena · Physics 2021-04-02 S. Sett , R. P. Breton , C. J. Clark , M. H. Kerkwijk , D. L. Kaplan

The origin of cosmic rays in our Galaxy remains a subject of active debate. While supernova remnant shocks are often invoked as the sites of acceleration, it is now widely accepted that the difficulties of such sources in reaching PeV…

High Energy Astrophysical Phenomena · Physics 2021-03-24 Giovanni Morlino , Pasquale Blasi , Enrico Peretti , Pierre Cristofari

Many supernova remnants (SNRs) are considered to evolve in molecular environments, but the associations between SNRs and molecular clouds (MCs) are often unclear. Being aware of such ambiguous case, we report our study on the molecular…

High Energy Astrophysical Phenomena · Physics 2020-07-15 Xin Zhou , Yang Su , Ji Yang , Yang Chen , Ye Xu , Xuepeng Chen , Shaobo Zhang

Recent studies using 21 cm HI line and $^{13}$CO line observations in the inner part of the Galaxy have resulted in new distances for 30 Galactic supernova remnants (SNRs). 15 of those remnants have observed X-ray spectra, for which…

Astrophysics of Galaxies · Physics 2018-10-17 D. A. Leahy , S. Ranasinghe

For the first time, we use relativistic mean-field (RMF) approximation with density-dependent couplings, adjusted by the DDME2 parameterization, to investigate the effects of dark matter on supernova remnants. We calculate the nuclear…

High Energy Physics - Phenomenology · Physics 2025-03-07 Adamu Issifu , Prashant Thakur , Franciele M. da Silva , Kau D. Marquez , Débora P. Menezes , M. Dutra , O. Lourenço , Tobias Frederico

In cores of supernovae and crusts of neutron stars, nuclei can adopt interesting shapes, such as rods or slabs, etc., which are referred to as nuclear "pasta." In recent years, we have studied the pasta phases focusing on their dynamical…

Nuclear Theory · Physics 2008-11-26 Gentaro Watanabe

Water ice has been detected in several supernova remnants despite the strong heating and radiation in these environments. This challenges standard expectations for dust survival. Using two dimensional magnetohydrodynamic simulations, we…

High Energy Astrophysical Phenomena · Physics 2026-02-17 A. Yeghikyan , M. Rah , S. Shamyar , S. Khachatryan

Pulsars are one of the possible final stages in the evolution of massive stars. If a supernova explosion is anisotropic, it can give the pulsar a powerful kick, propelling it to supersonic speeds. The resulting pulsar wind nebula is…

High Energy Astrophysical Phenomena · Physics 2025-03-28 D. M. A. Meyer , D. F. Torres , Z. Meliani

We propose a simple explanation for the apparent dearth of radio pulsars associated with young supernova remnants (SNRs). Recent X-ray observations of young remnants have revealed slowly rotating (P ~ 10-s) central pulsars with pulsed…

Astrophysics · Physics 2007-05-23 E. V. Gotthelf , G. Vasisht

The hope is that in the near future neutrino astronomy, born with the identification of thermonuclear fusion in the sun and the particle processes controlling the fate of a nearby supernova, will reach throughout and beyond our Galaxy and…

Astrophysics · Physics 2009-10-28 S. Barwick , F. Halzen , P. B. Price

Recent years have seen some significant progress in theoretical studies of physics of dense matter. Combined with the observational data now available from the successful launch of Chandra and XMM/Newton X-ray space missions as well as…

Astrophysics · Physics 2009-11-11 Sachiko Tsuruta

We performed millimeter observations in CO lines toward the supernova remnant (SNR) G127.1+0.5. We found a molecular filament at 4--13 km s$^{-1}$ consisting of two distinct parts: a straight part coming out of the remnant region and a…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Xin Zhou , Ji Yang , Min Fang , Yang Su

I outline the dynamical evolution of the shell remnants of supernovae (SNRs), from initial interaction of supernova ejecta with circumstellar material (CSM) through to the final dissolution of the remnant into the interstellar medium (ISM).…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Stephen P. Reynolds

We present a review of the first six years of Chandra X-ray Observatory observations of supernova remnants. From the official "first-light" observation of Cassiopeia A that revealed for the first time the compact remnant of the explosion,…

Astrophysics · Physics 2015-06-24 Martin C. Weisskopf , John P. Hughes

The question "Are supernovae important sources of dust?" is a contentious one. Observations with the Infrared Astronomical Satellite (IRAS) and the Infrared Space Observatory (ISO) only detected very small amounts of hot dust in supernova…

Astrophysics · Physics 2009-11-13 H L Gomez , S A Eales , L Dunne

Experiments using slow neutrons address a growing range of scientific issues spanning nuclear physics, particle physics, astrophysics, and cosmology. The field of fundamental physics using neutrons has experienced a significant increase in…

Nuclear Experiment · Physics 2009-01-06 J. S. Nico , W. M. Snow

We present two-dimensional MHD simulations of the evolution of a young Type Ia supernova remnant during its interaction with an interstellar cloud of comparable size at impact. We include for the first time in such simulations explicit…

Astrophysics · Physics 2009-10-30 Byung-Il Jun , T. W. Jones
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