A new large-amplitude variable white dwarf

Details A new large-amplitude variable white dwarf A new large-amplitude variable white dwarf

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263l..13s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 263, no. 1, p. L13-L15.

Astronomy and Astrophysics

Astronomy

14

Sky Surveys (Astronomy), Space Observations (From Earth), Stellar Oscillations, White Dwarf Stars, Astronomical Photometry, Light Curve, Stellar Color, Stellar Spectra

Scientific paper

A new large-amplitude ZZ Ceti star has been discovered in the Edinburgh-Cape Blue Object Survey. The light curve is non-sinusoidal, with a peak-to-peak variation ranging from 0.06 to 0.24 mag in white light. Six nights of observation show a multiple-period structure, with periods of between 800 and 1000 s. The principal frequency at f - 1.101 mHz is present on most nights observed with variable amplitude, probably caused by the presence of multiple close frequencies.

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