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Center For Computational Relativity And Gravitation
The Center for Computational Relativity and Gravitation (CCRG) is a research center of the College of Science (COS) and a Research Center of Excellence at Rochester Institute of Technology (RIT) dedicated to research at the frontiers of numerical relativity and relativistic astrophysics, gravitational-wave physics, its connection to experiments and observations, and high-performance computation and scientific visualization. Faculty members currently include Hans-Peter Bischof, Joshua Faber, Manuela Campanelli (Director), Carlos Lousto, David Merritt, John Whelan, Yosef Zlochower and Richard O'Shaughnessy. Computing facilities in the CCRG include gravitySimulator, a 32-node computer that uses special-purpose GRAPE A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus '' Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years a ... hardware to achi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIT 2018 Logo COS Center For Computational Relativity And Gravitation Rgb Hor K1
Rit is a brand of dye first sold in 1916. , it is owned by Phoenix Brands. Rit is a commercial dye used for household purposes, including dyeing clothes and wood. It is sold in solid and powdered forms. The items being dyed are soaked with Rit in hot water. Cloth dyed with Rit can be undyed with Rit Color Remover. References Further reading * * * External links Dyes {{textile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rochester Institute Of Technology
Rochester Institute of Technology (RIT) is a private university, private research university in the town of Henrietta, New York, Henrietta in the Rochester, New York, metropolitan area. The university offers undergraduate and graduate degrees, including Doctorate, doctoral and professional degrees and Online degree, online masters as well. The university was founded in 1829 and is the tenth largest private university in the United States in terms of full-time students. It is internationally known for its science, computer, engineering, and art programs, as well as for the National Technical Institute for the Deaf, a leading deaf-education institution that provides educational opportunities to more than 1000 deaf and hard-of-hearing students. RIT is known for its Cooperative education, C o-op program, which blends professional and industrial experience with traditional classroom based instruction. It has the fourth oldest and one of the largest co-op programs in the world. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manuela Campanelli (scientist)
Manuela Campanelli is a distinguished professor of astrophysics of the Rochester Institute of Technology,. She also holds the John Vouros endowed professorship at RIT and is the director of its Center for Computational Relativity and Gravitation. Her work focuses on the astrophysics of merging black holes and neutron stars, which are powerful sources of gravitational waves, electromagnetic radiation and relativistic jets. This research is central to the fields of relativistic astrophysics and gravitational-wave astronomy. She is a Fellow of the American Physical Society (2009), a Fellow of International Society on General Relativity and Gravitation Fellowship (2019), , and a recipient of the Richard A. Isaacson award in Gravitational-Wave Science of the APS (2024). Professional work Campanelli is known for her groundbreaking work in gravitational wave astrophysics. She was lead author on a paper that produced a breakthrough in gravitational wave astrophysics in 2005; she also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlos Lousto
Carlos O. Lousto is DistinguishedProfessor in the School of Mathematical Sciences in Rochester Institute of Technology, known for his work on black hole collisions. Professional career Lousto is aDistinguished Professor in the RIT's School of Mathematical Sciences and co-director of the Center for Computational Relativity and Gravitation. He holds two PhDs, one in Astronomy (studying accretion disks around black holes and the structure of neutron stars) from the National University of La Plata, and one in Physics from the University of Buenos Aires (on Quantum Field Theory in curved spacetimes), received in 1987 and 1992. Carlos Lousto has an extensive research experience which ranges from observational astronomy to black hole perturbation theory and numerical relativity to string theory and quantum gravity. He has authored and co-authored over 150 papers , including several reviews and book chapters. His research is funded by NSF and NASA grants and supercomputing allocations in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Merritt
David Roy Merritt (born November 16, 1955 in Los Angeles) is an American astrophysicist. Until 2017 he was a professor at the Rochester Institute of Technology in Rochester, New York. He received in 1982 his PhD in Astrophysical Sciences from Princeton University with thesis advisor Jeremiah P. Ostriker and held postdoctoral positions at the University of California, Berkeley and the Canadian Institute for Theoretical Astrophysics in Toronto. Merritt's fields of specialization include dynamics and evolution of galaxies, supermassive black holes, and computational astrophysics. Merritt is a former Chair of the Division on Dynamical Astronomy of the American Astronomical Society. He is a founding member of the Center for Computational Relativity and Gravitation at RIT. His scientific contributions include Osipkov–Merritt models, black hole spin flips, the Leonard–Merritt mass estimator, the M–sigma relation, stellar systems with negative temperatures, and the Schw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GravitySimulator
gravitySimulator is a novel supercomputer that incorporates special-purpose GRAPE hardware to solve the gravitational ''n''-body problem. It is housed in the Center for Computational Relativity and Gravitation (CCRG) at the Rochester Institute of Technology. It became operational in 2005. The computer consists of 32 nodes, each of which contains a GRAPE-6A board ("mini-GRAPE") in a Peripheral Component Interconnect (PCI) slot. The GRAPE boards use pipelines to compute pairwise forces between particles at a speed of 130 Gflops. The on-board memory of each GRAPE board can hold data for 128,000 particles, and by combining 32 of them in a cluster, a total of four million particles can be integrated, at sustained speeds of 4 Tflops. gravitySimulator is used to study the dynamical evolution of galaxies and galactic nuclei An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Pipe
Gravity Pipe (abbreviated GRAPE) is a project which uses hardware acceleration to perform gravitational computations. Integrated with Beowulf-style commodity computers, the GRAPE system calculates the force of gravity that a given mass, such as a star, exerts on others. The project resides at Tokyo University. The GRAPE hardware acceleration component "pipes" the force computation to the general-purpose computer serving as a node in a parallelized cluster as the innermost loop of the gravitational model. Its shortened name, GRAPE, was chosen as an intentional reference to the Apple Inc. line of computers. Method The primary calculation in GRAPE hardware is a summation of the forces between a particular star and every other star in the simulation. Several versions (GRAPE-1, GRAPE-3 and GRAPE-5) use the logarithmic number system (LNS) in the pipeline to calculate the approximate force between two stars and take the antilogarithms of the ''x'', ''y'' and ''z'' components before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teraflop
In computing, floating point operations per second (FLOPS, flops or flop/s) is a measure of computer performance, useful in fields of scientific computations that require floating-point calculations. For such cases, it is a more accurate measure than measuring instructions per second. Floating-point arithmetic Floating-point arithmetic is needed for very large or very small real numbers, or computations that require a large dynamic range. Floating-point representation is similar to scientific notation, except everything is carried out in base two, rather than base ten. The encoding scheme stores the sign, the exponent (in base two for Cray and VAX, base two or ten for IEEE floating point formats, and base 16 for IBM Floating Point Architecture) and the significand (number after the radix point). While several similar formats are in use, the most common is ANSI/IEEE Std. 754-1985. This standard defines the format for 32-bit numbers called ''single precision'', as well as 64-b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
N-body Problem
In physics, the -body problem is the problem of predicting the individual motions of a group of celestial objects interacting with each other gravitationally.Leimanis and Minorsky: Our interest is with Leimanis, who first discusses some history about the -body problem, especially Ms. Kovalevskaya's 1868–1888 twenty-year complex-variables approach, failure; Section 1: "The Dynamics of Rigid Bodies and Mathematical Exterior Ballistics" (Chapter 1, "The motion of a rigid body about a fixed point (Euler and Poisson equations)"; Chapter 2, "Mathematical Exterior Ballistics"), good precursor background to the -body problem; Section 2: "Celestial Mechanics" (Chapter 1, "The Uniformization of the Three-body Problem (Restricted Three-body Problem)"; Chapter 2, "Capture in the Three-Body Problem"; Chapter 3, "Generalized -body Problem"). Solving this problem has been motivated by the desire to understand the motions of the Sun, Moon, planets, and visible stars. In the 20th century, unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy Institutes And Departments
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Nowadays, professional a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Institutes In New York (state)
Research is " creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion on past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, eco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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