382 citations · 854 across the 11 of their papers we have counts for
8 papers · 1 filter
X-ray and radio emission from colliding stellar winds
J. M. Pittard, S. M. Dougherty, R. F. Coker +1
The collision of the hypersonic winds in early-type binaries produces shock heated gas, which radiates thermal X-ray emission, and relativistic electrons, which emit nonthermal rad…
A Magnetic Dynamo Origin For The Sub-mm Excess In Sgr A*
Fulvio Melia, Siming Liu, Robert Coker
The sub-mm bump observed in the spectrum of Sgr A* appears to indicate the existence of a compact emitting component within several Schwarzschild radii, , of the nucleus at th…
Polarized mm And sub-mm Emission From Sgr A* At The Galactic Center
Fulvio Melia, Siming Liu, Robert Coker
The recent detection of significant linear polarization at mm and sub-mm wavelengths in the spectrum of Sgr A* (if confirmed) will be a useful probe of the conditions within severa…
The Role of Magnetic Field Dissipation in the Black Hole Candidate Sgr A*
Robert F. Coker, Fulvio Melia
The compact, nonthermal radio source Sgr A* at the Galactic Center appears to be coincident with a 2.6 million solar mass point-like object. Its energy source may be the release of…
Accretion Disk Evolution with Wind Infall II. Results of 3D Hydrodynamical Simulations with an Illustrative Application to Sgr A*
Robert F. Coker, Fulvio Melia, Heino Falcke
In the first paper of this series, using analytic tools, we examined how the evolution and structure of a massive accretion disk may be influenced by the deposition of mass and ang…
3D Simulation of the Gas Dynamics in the Central Parsec of the Galaxy
R. Coker, F. Melia
It is thought that many characteristics of the gaseous features within the central parsec of our Galaxy, are associated with the accretion of ambient plasma by a central concentrat…