Realistic Accretion Dynamics of Black Hole Binaries Approaching Merger(bayh)
Apr 2019 - Dec 2019
Collaborative Research: Photons from Binary Black Hole Inspirals(baqi)
Mar 2018 - Mar 2019
Scott Noble: Accretion Dynamics of Black Hole Binaries
Blue Waters Symposium 2019, Jun 4, 2019
Manuela Campanelli: Revealing the Hidden Universe: Black Hole Mergers
NCSA Colloquium, Apr 23, 2015
Scott Noble: The Influence of Strong Field Spacetime Dynamics and MHD on Circumbinary Disk Physics
Blue Waters Symposium 2014, May 14, 2014
New Simulation Sheds Light on Spiraling Supermassive Black Holes
Oct 2, 2018
For the first time, a new computer simulation that fully incorporates the physical effects of Einstein's general theory of relativity shows that gas in such systems will glow predominantly in ultraviolet and X-ray light.
Supermassive black hole model predicts characteristic light signals at cusp of collision
Feb 14, 2018
A new simulation of supermassive black holes--the behemoths at the centers of galaxies--uses a realistic scenario to predict the light signals emitted in the surrounding gas before the masses collide, said Rochester Institute of Technology researchers.
Supercomputing Black Hole Mergers with Blue Waters
May 6, 2015
The observation of supermassive black holes on the verge of merger has numerous exciting consequences for our understanding of galactic evolution, black hole demographics, plasmas in strong-field gravity, and general relativity. Near black holes not only gravity is so extreme to generate observable gravitational waves, but accretion of magnetized, relativistic gas can lead to very powerful observable electromagnetic signals that astronomers are searching for. The collision of supermassive black holes is so powerful tat it is also believed to be responsible of the launching of powerful jets across the universe. The mathematics involved in simulating these events is very sophisticated because one has to solve the equations of Einstein’s general relativity and magneto-hydrodynamics all together. The problem also requires very advanced supercomputers running programs on tens of thousands of CPUs simultaneously, and the use of sophisticated techniques for data extraction and visualization. Petascale numerical simulation is therefore the only tool available to accurately model these systems. Fortunately, thanks to new developments in the field of numerical relativity, we can now simulate and visualize the innermost workings of these violent astrophysical phenomena.
PRAC winners represent a range of disciplines
Apr 21, 2010
Petascale Computing Resource Allocations (PRAC awards) from the National Science Foundation allow research teams to work closely with the Blue Waters project team in preparing their codes. The codes and projects address key challenges faced by our society and explore fundamental scientific and engineering problems. These multiyear collaborations include help porting and re-engineering existing applications. In some cases, the teams will build entirely new applications based on new programming models. Current projects—18 representing about 30 institutions—represent a wide range of scientific disciplines. They will drive scientific discovery for years to come.
Astrophysicists, cosmologists to tap power of Blue Waters
Mar 18, 2010
Blue Waters is expected to be the most powerful supercomputer in the world for open scientific research when it comes online at Illinois in 2011. Scientists and engineers who are eager to tap this sustained-petaflop powerhouse for breakthrough research are already working closely with the Blue Waters project team to prepare their codes. The National Science Foundation provides Petascale Computing Resource Allocations (PRAC awards) to support these collaborations, which include help porting and re-engineering existing applications and in some cases building entirely new applications based on new programming models. Current PRAC projects—18 representing about 30 institutions—represent a wide range of scientific disciplines: biology and health, weather and climate, earthquakes and geophysics, and cosmology and our universe.