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Analytical Modeling of Radial Velocity Curves of Hα Emission from WW And

Published online by Cambridge University Press:  21 February 2013

Casey Schwarz  and
Michele M. Montgomery
Casey Schwarz
Affiliation:
Dept. of Physics, University of Central Florida, Orlando, Florida 32816, USA email: Casey_Schwarz@knights.ucf.edu
Michele M. Montgomery
Affiliation:
Dept. of Physics, University of Central Florida, Orlando, Florida 32816, USA email: Montgomery@physics.ucf.edu
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Abstract

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Radial Velocity (RV) plots of emission lines, including Hα, from non-magnetic Cataclysmic Variables (CV), are usually fit with a sin curve. This sin fit sometimes does not prove to be the best fit for some non-magnetic CVs with accretion discs. An analytical model is created based on our 3D Smoothed Particle Hydrodynamic (SPH) numerical code in order to simulate the RV curves. The observational target is WW And, a long period non-magnetic CV. The model takes into account disc ellipticity and inclination angle that provide good non-sinusoidal fits to the observed RV data.

Keywords

Binariesradial velocity curvesaccretionnumericalcataclysmic variables, etc.
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 303 - 304
Copyright
Copyright © International Astronomical Union 2013

References

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