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- W2080392015 abstract "Omicron Scorpii (HR 6081) is a reddened A5II star situated in the direction of the Rho Ophiuchi dark cloud, and a probable member of the Sco OB2 association. Coté included it in a recent study of bright B and A-type stars detected by IRAS, and deduced that the IRAS data are consistent with the presence of infrared excess radiation characteristic of hot circumstellar dust (Td≃400−3500 K). As the star has been used by various authors to investigate the interstellar extinction and polarization laws in the infrared, it is important to confirm the reality of any infrared excess. In this paper, ground-based broad-band photometry covering the wavelength range 0.36−10 μm is combined with the IRAS measurements to show that no significant infrared excess is, in fact, present: the star's spectral energy distribution is entirely consistent with that of an A5II star with the appropriate degree of reddening. Consideration of the distance to the stellar association and the distribution of reddening along the line-of-sight suggests an absolute visual magnitude for oSco in the range −4.3 to −4.7, indicating that the star may be unusually luminous for its spectral type." @default.
- W2080392015 created "2016-06-24" @default.
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- W2080392015 date "1988-02-01" @default.
- W2080392015 modified "2023-09-25" @default.
- W2080392015 title "On the nature and environment of Omicron Scorpii" @default.
- W2080392015 doi "https://doi.org/10.1093/mnras/230.3.473" @default.
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