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Astrophysics

Reconnecting the Dots
6 years ago

Reconnecting the Dots

By  •  6 years ago  •  Science

Of particular importance to Bhattacharjee’s team is reconnection and shocks in systems where the plasma particles do not collide very often, both of which can serve as mechanisms for cosmic ray acceleration.
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Wells meets AAS

By  •  6 years ago  •  People

The OLCF’s Jack Wells was an invited speaker at the American Astronomical Society’s (AAS’s) Exascale Radio Astronomy conference from March 30 to April 4 in Monterrey, CA, where he detailed recent advances in computational astrophysics on Department of Energy supercomputing systems such as Titan.
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‘Engine of Explosion’ Discovered at OLCF now Observed in Nearby Supernova Remnant

By  •  6 years ago  •  Science

Now, more than a decade later, researchers mapping radiation signatures from the Cassiopeia A supernova with NASA’s NuSTAR high-energy x-ray telescope array have published observational evidence that supports the SASI model.
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Code for Largest Cosmological Simulations Ever on GPUs Is Gordon Bell Finalist
7 years ago

Code for Largest Cosmological Simulations Ever on GPUs Is Gordon Bell Finalist

By  •  7 years ago  •  Science

Researchers are using DOE’s most powerful computing systems, including the nation’s top-ranked machine, ORNL’s Titan, to simulate the evolution of the universe as it expands across billions of years.
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Supernovas as Nuclear Pasta Factories

By  •  8 years ago  •  Science

Using OLCF resources, scientists have simulated matter at the core’s bounce, when the shock wave starts to develop.
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Experts Converge for Computational Nuclear Physics Town Hall Meeting

By  •  8 years ago  •  People

Nuclear physics experts from around the country gathered July 23–24 in Washington, D.C., to discuss the future of computational nuclear physics.
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INCITE/OLCF Team’s Research Earns Prominent Placement

By  •  8 years ago  •  Science

A recent cover of Science magazine features a visualization from a long-standing INCITE/OLCF user team’s quest to discover the mechanism behind the explosions of core-collapse supernovas.
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Supernovas Explode in 3D Detail at Oak Ridge National Laboratory

By  •  8 years ago  •  Science

A team of astrophysicists and computational scientists is using the power of the OLCF’s Jaguar to virtually blow up dwarf stars, revealing the secrets of the biggest thermonuclear explosions in the universe.
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When Worlds Collide

By  •  9 years ago  •  Science

Homa Karimabadi’s team, in close collaboration with William Daughton at Los Alamos National Laboratory, is currently using the OLCF’s Jaguar supercomputer to better understand the processes giving rise to space weather.
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Another High-Definition Plasma

By  •  10 years ago  •  Science

A team led by University of Iowa astrophysicist Gregory Howes is using ORNL’s Jaguar supercomputer to explore astrophysical plasma.
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ORNL Supercomputers Help Studies of Supernovas, Space

By  •  11 years ago  •  Science

Researchers use Jaguar to simulate ignition in type Ia supernova explosions.

Type Ia supernovas are the largest thermonuclear explosions in nature, expelling mass greater than that of the Sun and …
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