2015/08/16 by Thomas Madura, Thomas I. Madura, Nicola Clementel +13
Earth and Planetary Sciences · Physics and Astronomy · #Aeolian processes and effects #FOS: Physical sciences #Ocean Waves and Remote Sensing #Solar and Stellar Astrophysics (astro-ph.SR) #Tropical and Extratropical Cyclones Research #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1508.03861
3 pages, to appear in conference proceedings of the International Workshop on Wolf-Rayet Stars, Potsdam, Germany, 1 - 5 June 2015, Editors W.-R. Hamann, A. Sander, and H. Todt
arxiv created 2015/08/16 · openalex publication_date 2015/08/16 · arxiv updated 2015/08/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present results of full 3D hydrodynamical and radiative transfer simulations of the colliding stellar winds in the massive binary system Eta Carinae. We accomplish this by applying the SimpleX algorithm for 3D radiative transfer on an unstructured Voronoi-Delaunay grid to recent 3D smoothed particle hydrodynamics (SPH) simulations of the binary colliding winds. We use SimpleX to obtain detailed ionization fractions of hydrogen and helium, in 3D, at the resolution of the original SPH simulations. We investigate several computational domain sizes and Luminous Blue Variable primary star mass-loss rates. We furthermore present new methods of visualizing and interacting with output from complex 3D numerical simulations, including 3D interactive graphics and 3D printing. While we initially focus on Eta Car, the methods employed can be applied to numerous other colliding wind (WR 140, WR 137, WR 19) and dusty 'pinwheel' (WR 104, WR 98a) binary systems. Coupled with 3D hydrodynamical simulations, SimpleX simulations have the potential to help determine the regions where various observed time-variable emission and absorption lines form in these unique objects.