PG 0122+200 - A new member of the GW Virginis (PG 1159-035) class of extremely hot pulsating white dwarfs

Details PG 0122+200 - A new member of the GW Virginis (PG 1159-035) class of extremely hot pulsating white dwarfs PG 0122+200 - A new member of the GW Virginis (PG 1159-035) class of extremely hot pulsating white dwarfs

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321l.123b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 321, Oct. 15, 1987, p. L123-L128.

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Balmer Series, Hot Stars, Planetary Nebulae, Pulsars, Stellar Spectrophotometry, White Dwarf Stars, Computational Astrophysics, H Alpha Line, Hertzsprung-Russell Diagram

Scientific paper

High-speed photometry reveals that the hot (≡100,000K) hydrogen-deficient white dwarf PG 0122+200 is a low-amplitude pulsating variable. The dominant periodicities are in the range 402 - 489 s, and appear to be due to nonradial g-modes. PG 0122+200 thus becomes the fifth known member of the PG 1159-035 (GW Vir) class, which includes three other PG white dwarfs and the central star of the planetary nebula K1-16.

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