Explosive nucleosynthesis is a research area in nuclear astrophysics that investigates the production of chemical elements and isotopes in environments where rapid energy release drives nonequilibrium nuclear reactions, typically associated with stellar explosions such as core-collapse and thermonuclear supernovae, novae, and neutron star mergers. It focuses on reaction networks under extreme temperatures, densities, and dynamic timescales, including rapid neutron capture (r-process), rapid proton capture (rp-process), and explosive silicon and oxygen burning. The field integrates nuclear reaction cross sections, equation-of-state physics, hydrodynamic simulations, and observational abundance patterns to constrain explosion mechanisms and the origin of heavy elements in the universe.
Understanding the origin of heavy elements on the periodic table is one of the most challenging open problems in all of physics. In the search for conditions suitable for these elements via "nucleosynthesis," a Los Alamos ...
Astronomy
Apr 25, 2025
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Most of the diverse elements in the universe come from supernovae. We are, quite literally, made of the dust of those long-dead stars and other astrophysical processes. But the details of how it all comes about are something ...
Astronomy
Nov 2, 2024
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What is the heaviest element in the universe? Are there infinitely many elements? Where and how could superheavy elements be created naturally?
A study published in The Astrophysical Journal presents new simulation results of supernova explosions that explain the latest observational data from the James Webb Space Telescope (JWST).
Astronomy
Oct 23, 2024
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When a massive star explodes as a supernova, it does more than release an extraordinary amount of energy. Supernovae explosions are responsible for creating some of the heavy elements, including iron, which is blasted out ...
Astronomy
Sep 25, 2024
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Low-energy nuclear fusion reactions can potentially provide clean energy. In stars, low-energy fusion reactions during the stages of carbon and oxygen burning are critical to stellar evolution. These reactions also offer ...
General Physics
Jun 10, 2024
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A new nucleosynthesis process denoted as the νr-process has been suggested by scientists from GSI Helmholtzzentrum für Schwerionenforschung, Technische Universität Darmstadt, and the Max Planck Institute for Astrophysics. ...
General Physics
May 13, 2024
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The origin of heavy elements in our universe is theorized to be the result of neutron star collisions, which produce conditions hot and dense enough for free neutrons to merge with atomic nuclei and form new elements in a ...
General Physics
Mar 13, 2024
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