Results 31 to 40 of about 3,393,330 (216)

IMPACT OF SUPERNOVA DYNAMICS ON THE νp-PROCESS [PDF]

open access: yesThe Astrophysical Journal, 2012
We study the impact of the late time dynamical evolution of ejecta from core-collapse supernovae on νp-process nucleosynthesis. Our results are based on hydrodynamical simulations of neutrino wind ejecta. Motivated by recent two-dimensional wind simulations, we vary the dynamical evolution during the νp-process and show that final abundances strongly ...
Arcones, A.   +2 more
openaire   +2 more sources

Dynamics of Kepler's supernova remnant

open access: yesThe Astrophysical Journal, 1992
Observations of Kepler's SNR have revealed a strong interaction with the ambient medium, far in excess of that expected at a distance of about 600 pc away from the Galactic plane where Kepler's SNR is located. This has been interpreted as a result of the interaction of supernova ejecta with the dense circumstellar medium (CSM).
Kazimierz J. Borkowski   +2 more
openaire   +1 more source

Approaching the dynamics of hot nucleons in supernovae [PDF]

open access: yesNuclear Physics A, 2005
All recent numerical simulations agree that stars in the main sequence mass range of 9-40 solar masses do not produce a prompt hydrodynamic ejection of the outer layers after core collapse and bounce. Rather they suggest that stellar core collapse and supernova explosion are dynamically distinct astrophysical events, separated by an unspectacular ...
Liebendoerfer, M.   +2 more
openaire   +2 more sources

The origin of cosmic rays and TeV gamma-ray astronomy

open access: yesEPJ Web of Conferences, 2013
Cosmic rays are accelerated to high energies in Galactic and extragalactic objects like Supernova remnants (SNR) and active galactic nuclei (AGN). How these accelerators work and how efficient they accelerate different types of particles to energies of ...
Maier Gernot
doaj   +1 more source

Dynamics of supernova remnants in the Galactic Centre

open access: yes, 2016
2 pages, 2 figures; To appear in: "Cosmic-Lab: Star Clusters as Cosmic Laboratories for Astrophysics, Dynamics and Fundamental Physics", F.R. Ferraro & B. Lanzoni eds, Mem.
Bortolas E., Mapelli M., Spera M.
openaire   +4 more sources

Simulations of coherent nonlinear neutrino flavor transformation in the core collapse supernova environment [PDF]

open access: yes, 2006
We describe a set of codes developed under the auspices of the Terascale Supernova Initiative to simulate the coherent, nonlinear evolution of the neutrino and antineutrino fields in the core collapse supernova environment. Ours are the first simulations
Carlson, J, Fuller, GM, Duan, H
core   +1 more source

Consistency of Cubic Galileon Cosmology: Model-Independent Bounds from Background Expansion and Perturbative Analyses

open access: yesUniverse, 2021
We revisit the cosmological dynamics of the cubic Galileon model in light of the recently proposed model-independent analyses of the Pantheon supernova data.
Suddhasattwa Brahma, Md. Wali Hossain
doaj   +1 more source

DESTRUCTION OF THE INTERSTELLAR CLOUDS BY THESHOCK WAVES

open access: yesOdessa Astronomical Publications, 2008
We study the influence of the interstellar cloud structure irregularity on the dynamics of its destruction by a supernova shock wave. It is shown that irregular clouds are destroyed twice quickly as the spherical ones.
E. E. Matvienko, Yu. A. Shchekinov
doaj   +1 more source

Evoluzione temporale di una supernova di tipo II nella fase di Plateau [PDF]

open access: yes, 2022
Studio dell'evoluzione spettroscopica della supernova SN 2013ds esplosa nella galassia PGC 57429 e classificata come supernova di tipo IIP. Riduzione dei dati opportunamente eseguita con IRAF. Vengono identificate specifiche righe spettrali per la stima
Milan, Michela
core  

Contributions of supernovae to the chemical and dynamical evolution of the ism [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
ABSTRACT:Supernovae of Types Ia, Ib, and II contribute, on average, 1051 ergs of turbulent energy to the interstellar medium for each 2 Mo of new heavy elements. This permits a dynamical extension of the homogeneous one-zone model (with constant IMF and instantaneous recycling) that is familiar from studies of galactic chemical evolution.
openaire   +1 more source

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