Results 251 to 260 of about 140,146 (287)

60Fe and 244Pu deposited on Earth constrain the r-process yields of recent nearby supernovae

Science, 2021
Natural plutonium from supernovae The rapid neutron capture process (r-process) produces many of the heavy chemical elements, but the astrophysical settings where it occurs remain unclear.
Anton Wallner, M. Froehlich, Michael Hotchkis, Norikazu Kinoshita, Michael Paul, M. Martschini, S. Pavetich, S. Tims, N. Kivel, D. Schumann, M. Honda, Hiroyuki Matsuzaki, T. Yamagata   +12 more
semanticscholar   +1 more source

Observational properties of thermonuclear supernovae

Nature Astronomy, 2019
The explosive death of a star as a supernova is one of the most dramatic events in the Universe. Supernovae have an outsized impact on many areas of astrophysics: they are major contributors to the chemical enrichment of the cosmos and significantly ...
S. Jha, K. Maguire, M. Sullivan
semanticscholar   +1 more source

Observational properties of extreme supernovae

Nature Astronomy, 2019
The past ten years have opened up a new parameter space in time-domain astronomy with the discovery of transients defying our understanding of how stars explode.
C. Inserra
semanticscholar   +1 more source

Super Supernovae

Scientific American, 2012
The largest stars die in explosions more powerful than anyone thought possible—some triggered in part by the production of antimatter. ; © 2012 Scientific American, a division of Nature America, Inc. Published online: 15 May 2012.
openaire   +3 more sources

Cosmic Ray Production in Supernovae

Supernovae, 2018
We give a brief review of the origin and acceleration of cosmic rays (CRs), emphasizing the production of CRs at different stages of supernova evolution by the first-order Fermi shock acceleration mechanism.
A. Bykov, A. Bykov, D. Ellison, A. Marcowith, S. Osipov   +4 more
semanticscholar   +1 more source

Intensive Supernovae Searches

Astrophysics and Space Science, 2003
In the coming years, a number of projects will start intensive supernov esearches resulting in an increase of the current statistics by a factor of 10. At low redshift, the Nearby Supernova Factory will detect and follow spectrophotometricly ~ 400 of SNe Ia with a redshift at z ~ 0.05, and improve our understanding of the intrinsic properties of SNe Ia.
openaire   +1 more source

SUPERNOVA EXPLOSIONS AND SUPERNOVA NEUTRINOS

Neutrinos in Physics and Astrophysics, 2000
We summarize the current status of core-collapse supernova theory, in particular as it relates to multi-dimensional effects and neutrino transport . Highlighted are pulsar kicks , neutrino burst signatures, many-body effects, and observed asphericities that may have a bearing on the mechanism of supernova explosions .
openaire   +1 more source

Supernovae and Supernova Remnants

1983
Supernovae are the result of explosions which terminate the life of massive stars. The amount of energy released by the supernovae in our galaxy is so large that these explosions provide the dominant energy for the heating of the hot (T ≳ 106 K) IS component and for the kinetic energy of the large scale motions of the interstellar clouds.
openaire   +1 more source

Supernovae and supernova remnants

2001
A supernova explosion is among the most dramatic events that can be seen. The term ‘supernova’ is somewhat misleading, as such an event represents not a new star (that is, a ‘nova’), but instead the end of a star’s life. Nuclear fusion, the energy source of the stars, creates heavier elements from lighter elements.
openaire   +1 more source

Supernovae And Supernova Remnants

Annual Review of Astronomy and Astrophysics, 1988
Kurt W. Weiler, Richard A. Sramek
openaire   +2 more sources