NASA NTRS · 19880048390
PG 1346+082 - An interacting binary white dwarf system
Abstract
PG 1346+082 is both a photometric and a spectroscopic variable, spanning the B-magnitude range 13.6-17.2. High-speed photometric data reveal rapid flickering in the low-state light curve. The system also shows spectroscopic variations, displaying broad shallow He I absorption lines at maximum light and a weak emission feature at He I (4471 A) at minimum light. Hydrogen lines are conspicuous by their absence. Is is concluded that PG 1346+082 is an interacting binary white dwarf system. Furthermore, because continuum fits to IUE high-state data suggest temperatures consistent with membership in the DB white dwarf instability strip, it is suggested that some of the photometric variations may arise from pulsations.
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Wood, M. A., Winget, D. E., Nather, R. E., Liebert, James, Wesemael, F.. 1987-01-01. PG 1346+082 - An interacting binary white dwarf system. https://ntrs.nasa.gov/citations/19880048390
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