Discovery and seismological interpretation of low-amplitude modes in the pulsating DO white dwarf PG 1707 + 427 (V817 Herculis)

Details Discovery and seismological interpretation of low-amplitude modes in the pulsating DO white dwarf PG 1707 + 427 (V817 Herculis) Discovery and seismological interpretation of low-amplitude modes in the pulsating DO white dwarf PG 1707 + 427 (V817 Herculis)

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...378l..49f&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 378, Sept. 10, 1991, p. L49-L52. Research supported by NSERC, Min

Mathematics

Logic

25

Seismology, Stellar Interiors, Stellar Oscillations, White Dwarf Stars, Light Curve, Power Spectra, Space Observations (From Earth), Stellar Mass

Scientific paper

The discovery of low-amplitude pulsation modes in the faint variable DO white dwarf PG 1707 + 427 (V817 Her) is reported. With the large aperture of the CFHT, enough modes were uncovered to allow the derivation of preliminary asteroseismological estimate of the mass of the star of approximately 0.7 solar mass. This assumes that the modes observed have a spherical harmonic index l = 1.

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