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The Temperatures of White Dwarfs in Accreting Binaries
Szkody, Paula; Sion, Edward M.
Long-term observations of the dwarf nova WZ Sge with an outburst recurrence time of 33 years are studied. The results indicate that the UV flux reached an equilibrium value at about the end of 1986; this means that the UV flux continued to decrease for 8 years after outburst. If the underlying dwarf has provided a dominant amount of the UV flux si…
X-Ray Emission from Hot DA White Dwarfs - EXOSAT Results and Implications for Atmospheric Models
Paerels, Frits; Heise, John
We present the observations of the photospheric X-ray spectra of hot DA white dwarfs, obtained with the 500 lines mm -1 Transmission Grating Spectrometer on EXOSAT. These spectra cover the full soft X-ray band, at high wavelength resolution and statistical quality. They allow us to do an accurate measurement of the photospheric paramete…