Results 51 to 60 of about 32,797 (265)

Essential ingredients in core-collapse supernovae

open access: yesAIP Advances, 2014
Carrying 1044 joules of kinetic energy and a rich mix of newly synthesized atomic nuclei, core-collapse supernovae are the preeminent foundries of the nuclear species which make up our solar system and ourselves.
W. Raphael Hix   +9 more
doaj   +1 more source

Hydrogen-Rich Core-Collapse Supernovae [PDF]

open access: yes, 2016
Hydrogen-rich core collapse supernovae, known as "Type II" supernovae, are the most common type of stellar explosion realized in nature. They are defined by the presence of prominent hydrogen lines in their spectra. Type II supernovae are observed only in star-forming galaxies, and several events have been directly linked to massive star progenitors ...
openaire   +2 more sources

The Effects of Thomson Scattering and Chemical Mixing on Early-time Light Curves of Double-peaked Type IIb Supernovae

open access: yesThe Astrophysical Journal, 2023
Previous numerical simulations of double-peaked Type IIb supernova (SN IIb) light curves have demonstrated that the radius and mass of the hydrogen-rich envelope of the progenitor star can significantly influence the brightness and timescale of the early-
Seong Hyun Park   +2 more
doaj   +1 more source

Non-spherical core collapse supernovae and nucleosynthesis [PDF]

open access: yes, 2000
Motivated by observations of supernova SN 1987A, various authors have simulated Rayleigh-Taylor (RT) instabilities in the envelopes of core collapse supernovae (for a review, see Mueller 1998).
Kifonidis, K., Mueller, E., Plewa, T.
core   +3 more sources

Understanding Core-Collapse Supernovae

open access: yesNuclear Physics A, 2010
Our understanding of core-collapse supernovae continues to improve as better microphysics is included in increasingly realistic neutrino-radiationhydrodynamic simulations. Recent multi-dimensional models with spectral neutrino transport, which slowly develop successful explosions for a range of progenitors between 12 and 25 solar mass, have motivated ...
W.R. Hix   +8 more
openaire   +2 more sources

Topics in core-collapse supernova-theory [PDF]

open access: yes, 2004
10 pages, 2 color figures, to be published in the proceedings of ``3-D Signatures in Stellar Explosions: A Workshop honoring J.
Burrows, Adam   +2 more
openaire   +2 more sources

The Type Ibn Supernova 2019kbj: Indications for Diversity in Type Ibn Supernova Progenitors

open access: yesThe Astrophysical Journal, 2023
Type Ibn supernovae (SNe) are a rare class of stellar explosions whose progenitor systems are not yet well determined. We present and analyze observations of the Type Ibn SN 2019kbj, and model its light curve in order to constrain its progenitor and ...
Tom Ben-Ami   +11 more
doaj   +1 more source

Near-infrared Spectroscopy of Dense Ejecta Knots in the Outer Eastern Area of the Cassiopeia A Supernova Remnant

open access: yesThe Astrophysical Journal, 2023
The Cassiopeia A supernova remnant has a complex structure, manifesting the multidimensional nature of core-collapse supernova explosions. To further understand this, we carried out near-infrared multiobject spectroscopy on the ejecta knots located in ...
Bon-Chul Koo   +3 more
doaj   +1 more source

Supernovae in the nuclear regions of starburst galaxies [PDF]

open access: yes, 2000
The feasibility of using near-infrared observations to discover supernovae in the nuclear and circumnuclear regions of nearby starburst galaxies is investigated. We provide updated estimates of the intrinsic core-collapse supernova rates in these regions.
Mattila, S., Meikle, W. P. S.
core   +3 more sources

Production of Radioactive 22Na in Core-collapse Supernovae: The Ne-E(L) Component in Presolar Grains and Its Possible Consequences on Supernova Observations

open access: yesThe Astrophysical Journal
Presolar graphite grains carry the isotopic signatures of their parent stars. A significant fraction of presolar graphites show isotopic abundance anomalies relative to solar for elements such as O, Si, Mg, and Ca, which are compatible with ...
Marco Pignatari   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy