Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560624b&link_type=abstract
American Astronomical Society, AAS Meeting #215, #606.24; Bulletin of the American Astronomical Society, Vol. 36, p.1133
Astronomy and Astrophysics
Astronomy
Scientific paper
Recent theories and simulations suggest that the double degenerate, ultracompact binary systems V407 Vul (RX J1914.4 + 2457) and HM Cnc (RX J0806.3+1527) represent the only two known systems that exhibit Algol-like direct impact behavior within the galaxy. The physical characteristics of these two systems have produced several competing theoretical models. We provide preliminary results from a simulation of the direct impact (DI) accretion model proposed by Marsh and Steeghs (2002) using PLUTO, a numerical hydrodynamics code. Our results consist of qualitative representations depicting a ballistic accretion stream directly striking the atmosphere of a close white dwarf primary. This project was funded by a partnership between the National Science Foundation (NSF AST-0552798), Research Experiences for Undergraduates (REU), and the Department of Defense (DoD) ASSURE (Awards to Stimulate and Support Undergraduate Research Experiences) programs.
Baez William
Silver Isaac
Wood Marion
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