Results 111 to 120 of about 2,169 (225)

Supernovae Drive Large-scale, Incompressible Turbulence through Small-scale Instabilities

The Astrophysical Journal Letters
The sources of turbulence in our Galaxy may be diverse, but core-collapse supernovae (SNe) alone provide enough energy to sustain a steady-state galactic turbulence cascade at the observed velocity dispersion.
James R. Beattie
doaj   +1 more source

Constraining the Circumstellar Medium Structure and Progenitor Mass-loss History of Interacting Supernovae Through 3D Hydrodynamic Modeling: The Case of SN 2014C

The Astrophysical Journal
We investigate SN 2014C using three-dimensional (3D) hydrodynamic modeling, focusing on its early interaction with a dense circumstellar medium (CSM). Our objective is to uncover the pre-supernova (SN) CSM structure and constrain the progenitor star’s ...
Salvatore Orlando, Emanuele Greco, Ryosuke Hirai, Tomoki Matsuoka, Marco Miceli, Shigheiro Nagataki, Masaomi Ono, Ke-Jung Chen, Dan Milisavljevic, Daniel Patnaude, Fabrizio Bocchino, Nancy Elias-Rosa   +11 more
doaj   +1 more source

THE MORPHOLOGY AND DYNAMICS OF JET-DRIVEN SUPERNOVA REMNANTS: THE CASE OF W49B

, 2013
The circumstellar medium (CSM) of a massive star is modified by its winds before a supernova (SN) explosion occurs, and thus the evolution of the resulting supernova remnant (SNR) is influenced by both the geometry of the explosion as well as the complex
Ramirez-Ruiz, Enrico, Lopez, Laura A., González-Casanova, Diego F., De Colle, Fabio   +3 more
core   +1 more source

Three-dimensional Simulations from Supernovae to Their Supernova Remnants: The Dynamical and Chemical Evolution of Supernova 1987A [PDF]

Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15), 2020
Masaomi Ono, Salvatore Orlando, Marco Miceli, Shigehiro Nagataki, Koh Takahashi, Hideyuki Umeda, Takashi Yoshida, Takaya Nozawa, Oleh Petruk, Fabrizio Bocchino, Gilles Ferrand   +10 more
openaire   +1 more source

Local 2D Simulations of the Ignition of a Helium Shell Detonation on a White Dwarf by an Impacting Stream

The Astrophysical Journal
The double detonation model is one of the prevalent explosion mechanisms of Type Ia supernovae (SNe Ia) wherein an outer helium shell detonation triggers a core detonation in the white dwarf (WD).
Nethra Rajavel, Dean M. Townsley, Ken J. Shen   +2 more
doaj   +1 more source

How high energy fluxes may affect Rayleigh–Taylor instability growth in young supernova remnants

, 2018
Energy-transport effects can alter the structure that develops as a supernova evolves into a supernova remnant. The Rayleigh–Taylor instability is thought to produce structure at the interface between the stellar ejecta and the circumstellar matter ...
A. Shimony, R. P. Drake, D. C. Marion, E. Giraldez, H. F. Robey, D. Kalantar, W. C. Wan, A. R. Miles, E. C. Harding, C. M. Huntington, D. Shvarts, J. Kline, K. A. Flippo, T. A. Handy, C. C. Kuranz, K. Raman, C. M. Krauland, B. A. Remington, G. Malamud, S. Prisbrey, M. J. Grosskopf, S. MacLaren, R. Wallace, S. R. Klein, M. R. Trantham, T. Plewa, F. W. Doss, H.-S. Park   +27 more
core   +1 more source

A Core-collapse Supernova Neutrino Parameterization with Enhanced Physical Interpretability

The Astrophysical Journal Supplement Series
We introduce a novel parameterization of supernova neutrino energy spectra with a clear physical motivation. Its central parameter, τ ( t ), quantifies the characteristic thermal-diffusion area during the explosion.
Haihao Shi, Zhenyang Huang, Junda Zhou, Guoliang Lü, Xuefei Chen   +4 more
doaj   +1 more source

Dynamics and Nonthermal Emission of Shell Supernova Remnants / Reynolds S. // X-Ray and Radio

, 2020
Supernova remnants illustrate the return of mass and energy from stars to the interstellar medium, connecting one generation of star formation with the next.
S P Reynolds
core  

Highlight on Supernova Early Warning at Daya Bay

, 2015
Providing an early warning of supernova burst neutrinos is of importance in studying both supernova dynamics and neutrino physics. The Daya Bay Reactor Neutrino Experiment, with a unique feature of multiple liquid scintillator detectors, is sensitive to ...
Wei, Hanyu, Wei, H., Hanyu Wei
core   +1 more source

Modeling supernova remnants: effects of diffusive cosmic-ray acceleration on the evolution and application to observations

, 2011
We present numerical models for supernova remnant evolution, using a new version of the hydrodynamical code SUPREMNA. We added a cosmic-ray diffusion equation to the code scheme, employing a two-fluid approximation.
S. I. Blinnikov, Astrophysics, D. Kosenko, Blinnikov, S., Vink, J., Dep Natuurkunde, Kosenko, D., Afd Astrophysics begr 1/1/17, Sub High energy Astrophysics begr 1/1/15, J. Vink   +9 more
core   +1 more source