Simulating the Homunculus Nebula of Eta Carinae with an Innovative Multi-mass SPH Technique

Details Simulating the Homunculus Nebula of Eta Carinae with an Innovative Multi-mass SPH Technique Simulating the Homunculus Nebula of Eta Carinae with an Innovative Multi-mass SPH Technique

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560628f&link_type=abstract

American Astronomical Society, AAS Meeting #215, #606.28; Bulletin of the American Astronomical Society, Vol. 36, p.1134

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We present a multi-mass, mixed resolution SPH technique which allows greatly reduced particle number while obtaining high resolution in lower density areas. Two sets of SPH particles are used - high mass for high density regions, low mass for low density regions. Hydrodynamic interaction between the sets is performed with the use of 'buffer' or tracer particles for each set. This technique has many applications in high density contrast simulations such as common envelope spin-up and low mass loss winds and mass transfer in binaries. We use this technique to test a common envelope ejection origin for the Homunculus nebula around Eta Carinae.

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