Herculis in Profile : Whole Earth Telescope Observa - tions and Smoothed Particle Hydrodynamics Simulations
نویسندگان
چکیده
DQ Herculis was the Summer 1997 WET northernhemisphere primary target. The O − C phase diagram of the 71-s signal reveals out-of-eclipse phase variations resulting from the self eclipses of a nearly edge-on, non-axisymmetric disc. We work the forward problem of simulating DQ Herculis numerically using the method of smoothed particle hydrodynamics (SPH), and from the time-averaged structure calculate the O − C phase variations as a function of inclination angle. The WET and SPH O−C phase variations match to a remarkable degree, and suggest a system inclination in the range 89.5 ≤ i ≤ 89.7.
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