Simulating Emission Line Profiles for Superhumping Cataclysmic Variables

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Date/Time:Friday, 06 Nov 2009 from 4:10 pm to 5:10 pm
Location:Physics Hall 3
Phone:515-294-2298
Channel:Astronomy
Categories:Lectures
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Josh Cardenzana, Iowa State University

Cataclysmic variable (CV) stars are close binary systems with typically a white dwarf primary accreting from a low-mass main-sequence secondary star. One useful technique to study these systems observationally is through time-series spectroscopy. A method by which synthetic line profiles can be produced using the CV modeling program FITDISK will be discussed. Because we compute the velocities and instantaneous energy dissipation ("luminosity") of all the particles in the simulation, we can synthesize line profiles as a function of simulation time. Methods used and results will be presented.