Results 91 to 100 of about 5,737 (225)

Neutrino radiation hydrodynamics in hot and dense nuclear matter and the role of microphysics in simulations of massive stars [PDF]

open access: yes, 2010
The main results of my doctoral studies were obtained from core collapse simulations of massive stars using a numerical model based on radiation hydrodynamics and three-flavour Boltzmann neutrino transport in spherical symmetry.
Fischer, Tobias
core   +1 more source

Explosion Parameters of SN 2013df and Properties of Its Progenitor Star [PDF]

open access: yes, 2014
Type IIb supernovae have only recently been identified as a distinct flavor of core-collapse stellar explosions. These supernovae represent a transitional type between Type II and Type Ib supernovae.
Powell, Diana K.   +1 more
core   +1 more source

Pulsed‐Laser‐Driven CO2 Reduction Reaction for the Control of the Photoluminescence Quantum Yield of Organometallic Gold Nanocomposites

open access: yesSmall Science, Volume 4, Issue 7, July 2024.
Pulsed‐laser‐driven CO2 reduction reaction allows the synthesis of carbon‐monoxide‐rich gold nanoparticles and organometallic nanocomposites composed by gold nanoclusters and carboxylic salts, characterized by a photoluminescent quantum yield of 20% in the visible (blue) region.
Tahir   +34 more
wiley   +1 more source

Evolution, Explosion, and Nucleosynthesis of Core‐Collapse Supernovae

open access: yesThe Astrophysical Journal, 2003
We present a new set of presupernova evolutions and explosive yields of massive stars of initial solar composition (Y=0.285, Z=0.02) in the mass range 13-35 Msun. All the models have been computed with the latest version (4.97) of the FRANEC code that now includes a nuclear network extending from neutrons to Mo98. The explosive nucleosynthesis has been
Limongi, Marco, Chieffi, Alessandro
openaire   +5 more sources

Nucleosynthesis in Core-Collapse Supernovae [PDF]

open access: yes, 2018
The nucleosynthesis which occurs in core-collapse supernovae (CCSN) is one of the most important sources of elements in the universe. Elements from Oxygen through Iron come predominantly from supernovae, and contributions of heavier elements are also ...
Stevenson, Taylor
core   +1 more source

Prompt Convection in Core Collapse Supernovae [PDF]

open access: yes, 1994
We investigate prompt convection in core collapse supernovae and its consequences for the late-time shock evolution and supernova outcome. We examine the evolution of the core prior to the onset of convection and find that the negative entropy gradients ...
Bruenn, Stephen W.   +3 more
core   +2 more sources

Strontium-84 Enrichments in Presolar Grains Provide First Evidence of p-process Nucleosynthesis in Core-collapse Supernovae

open access: yesThe Astrophysical Journal Letters
This study reports detection of rare p -process isotopes within presolar grains. Presolar grains are relic dust grains from dying stars. These microscopic dust particles are found in primitive solar system materials.
Ishita Pal   +11 more
doaj   +1 more source

Nucleosynthesis and Clump Formation in a Core-Collapse Supernova

open access: yesThe Astrophysical Journal, 2000
High-resolution two-dimensional simulations were performed for the first five minutes of the evolution of a core collapse supernova explosion in a 15 solar mass blue supergiant progenitor. The computations start shortly after bounce and include neutrino-matter interactions by using a light-bulb approximation for the neutrinos, and a treatment of the ...
Kifonidis, K.   +3 more
openaire   +3 more sources

Dust Formation and Destruction in Core Collapse Supernovae Explosions [PDF]

open access: yes
Dust is a crucial component of the Interstellar Medium (ISM) and an important driver in many astrophysical processes. Dust formed from evolved stars increases the metallicity of the ISM, enriching it with heavier elements.
Stangl, Sarah
core  

Computational models of stellar collapse and core-collapse supernovae [PDF]

open access: yes, 2009
Core-collapse supernovae are among Nature's most energetic events. They mark the end of massive star evolution and pollute the interstellar medium with the life-enabling ashes of thermonuclear burning.
Livne, Eli   +5 more
core  

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