Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210l..87h&link_type=abstract
Astrophysical Journal, vol. 210, Dec. 1, 1976, pt. 2, p. L87-L89.
Astronomy and Astrophysics
Astronomy
30
Hot Stars, Stellar Spectrophotometry, Ultraviolet Photometry, Visual Photometry, White Dwarf Stars, Far Ultraviolet Radiation, Main Sequence Stars, Oao 2, Spaceborne Astronomy, Stellar Temperature
Scientific paper
OAO-2 ultraviolet photometry of the composite spectrum white dwarf Feige 24 is compared with model atmospheres to derive an effective temperature of 70,000 (+20,000, -15,000) K. The distance to this star is estimated to be 90 (+55, -31) pc if the cool component is assumed to be a main-sequence star with a red and near-infrared energy distribution that is normal for its spectral type. The derived characteristics of Feige 24 are compatible with its identification as the extreme-ultraviolet source observed by Margon et al.
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