A study of the B[e] star AS 160 |
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| Authors: | A S Miroshnichenko V G Klochkova K S Bjorkman |
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| Institution: | (1) Pulkovo Astronomical Observatory, Russian Academy of Sciences, Pulkovskoe sh. 65, St. Petersburg, 196140, Russia;(2) Toledo University, Ohio, USA;(3) Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Stavropolskii Krai, 357147, Russia;(4) University of Toledo, Ohio, USA |
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| Abstract: | We present the results of our study of the poorly known Be] star AS 160=IRAS 07370-2438. The high-resolution spectrum obtained with the 6-m BTA telescope exhibits strong emission in the Hα line with a two-component profile, indicating that the gaseous envelope of the star is nonspherical. Previously nonanalyzed photometric data suggest the presence of a compact dust envelope. The fundamental parameters of the star (log L/L⊙ = 4.4 ± 0.2, v sin i = 200 km s?1 and its distance (3.5±0.5 kpc) have been determined for the first time and are in agreement with published estimates of the MK spectral type of the object (B1.5 V:). Analysis of the object's properties leads us to suggest that this is a binary system that belongs to our recently identified type of Be stars with warm dust. |
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| Keywords: | stars— properties classification |
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