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A 3D radiative transfer framework: XIII. OpenCL implementation
Radiative transfer – Scattering
2011/10/20
We discuss an implementation of our 3D radiative transfer (3DRT) framework with the OpenCL paradigm for general GPU computing. We implement the kernel for solving the 3DRT problem in Cartesian coordin...
Gravitationally Induced Density Wake of a Circularly Orbiting Object As an Interpretative Framework of Ubiquitous Spirals and Arcs
Induced Density Circularly Orbiting Interpretative Framework Ubiquitous Spirals
2011/10/9
An orbiting object in a gas rich environment creates a gravitational density wake containing information about the object and its orbit. Using linear perturbation theory, we analyze the observable pro...
Enhanced Inflation in the Dirac-Born-Infeld framework
brane inflation DBI theory form invariance symmetry
2010/11/15
We consider the Einstein equations within the DBI scenario for a spatially flat Friedmann-
Robertson-Walker (FRW) spacetime without a cosmological constant. We derive the inflationary
scenario by ap...
The transition from quasar radio-loud to radio-quiet state in the framework of the black hole scalability hypothesis
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
There are several lines of evidence that active galactic nuclei (AGN) can be regarded as scaled-up X-ray binaries (XRB). The timescales of the evolutionary phenomena in these two classes are proportio...
The riemann framework and higher order godunov schemes for parallel, self-adaptive computational astrophysics
computational astrophysics relativistic hydrodynamics
2009/6/4
The field of computational astrophysics (CA) has seen many recent advances.The emergence of higher order Go dunov schemes for many of the systems of inter-est in CA represents a development of great i...