We present a unified model of infrared ( IR ) , optical , ultraviolet ( UV ) , and X-ray light curves for the 1983 outburst of GQ Muscae ( Nova Muscae 1983 ) and estimate its white dwarf ( WD ) mass .
Based on an optically thick wind model of nova outbursts , we model the optical and IR light curves with free-free emission , and the UV 1455 Å and supersoft X-ray light curves with blackbody emission .
The best fit model that reproduces simultaneously the IR , optical , UV 1455 Å , and supersoft X-ray observations is a 0.7 \pm 0.05 ~ { } M _ { \sun } WD for an assumed chemical composition of the envelope , X = 0.35 - 0.55 , X _ { CNO } = 0.2 - 0.35 , and Z = 0.02 , by mass weight .
The mass lost by the wind is estimated to be \Delta M _ { wind } \sim 2 \times 10 ^ { -5 } M _ { \odot } .
We provide a new determination of the reddening , E ( B - V ) = 0.55 \pm 0.05 , and of the distance , \sim 5 kpc .
Finally , we discuss the strong UV flash that took place on JD 2,445,499 ( 151 days after the outburst ) .