Abstract
ABSTRACTUsing newly determined parallaxes for dwarf novae, we have derived outburst accretion rates for VY Aqr, RU Peg, and T Leo, and for T Leo during quiescence. The two short‐period dwarf novae, VY Aqr and T Leo, show good agreement with optically thick steady‐state accretion disks in outburst, whereas RU Peg shows a significant departure from a steady‐state disk. We have determined that the white dwarf in T Leo has Teff = 16,000 ± 1000 K, a value consistent with long‐term compressional heating when gravitational‐wave emission drives mass transfer. The white dwarf in T Leo has a temperature in the same narrow range as other WZ Sge–like dwarf novae.
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