Photoelectric UBV photometry of the peculiar emission-line star Henize 2-467

Details Photoelectric UBV photometry of the peculiar emission-line star Henize 2-467 Photoelectric UBV photometry of the peculiar emission-line star Henize 2-467

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..706a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, Sept. 1985, p. 706-711) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, Sept.-O

Astronomy and Astrophysics

Astronomy

2

Peculiar Stars, Stellar Envelopes, Stellar Spectrophotometry, Ubv Spectra, Ultraviolet Astronomy, Variable Stars, Binary Stars, Emission Spectra, G Stars, H Alpha Line, Light Curve, Stellar Color, Stellar Models

Scientific paper

Photoelectric observations during 1982-1984 indicate that the peculiar emission-line object He 2-467 was variable in all the U, B, V bands, especially U. The U - B fluctuation amplitude exceeds 1.5 m. A strong UV excess is present. He 2-467 is modeled as a binary system comprising a G giant and a hot subdwarf surrounded by a gaseous envelope or disk. The gas emits primarily continuum radiaiation, its emission lines being suppressed by self-absorption. The measured equivalent width of the H-alpha emission line and the object's position in the two-color diagram are consistent with this model.

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