HD 107346, a red subgiant with a strong ultraviolet excess

Details HD 107346, a red subgiant with a strong ultraviolet excess HD 107346, a red subgiant with a strong ultraviolet excess

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..434s&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 10, June 1984, p. 434-438) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, May-June

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Binary Stars, Subdwarf Stars, Subgiant Stars, Spectral Energy Distribution, Stellar Spectra

Scientific paper

Spectral scans of the celestial object HD 107346 were carried out in the 3870-4540 A range on May 9-10, 1982 to study observed V and UV enhancement. The data indicated that the object is approximately a G8 star. Combining the new data with previous observations yielded a mean energy distribution in the V band which was compared with typical G5 IV, G8 IV, and K0 IV stars. Observed anomalies indicate that HD 107346 is a binary system. Synthesis of color indices for the object revealed the presence of a hot component. Subsequent spectroscopy in March-June 1983 failed to resolve the binary components. Further scans at EUV wavelengths are recommended.

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