Abstract
Based on the material of multiple high-resolution R = 60 000 observations conducted on the 6-m telescope (BTA) of the Special Astrophysical Observatory in combination with the Nasmyth Echelle Spectrograph (NES), we closely studied the features of the optical spectrum of the star MWC17 with the B[e] phenomenon. In the wavelength interval of 4050–6750 Å, we identified numerous permitted and forbidden emissions, interstellar Na I lines, and diffuse interstellar bands (DIBs). Radial velocities were estimated from lines of different origin. As the systemic velocity, V sys, the velocity of the forbidden emissions can be accepted: −47 kms−1 (relative to the local standard V lsr = −42 kms−1). Comparison of the obtained data with the earlier measurements allows us to conclude on the absence of considerable variability of spectral details.
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Original Russian Text © V.G. Klochkova, E.L. Chentsov, 2016, published in Astrofizicheskii Byulleten, 2016, Vol. 71, No. 1, pp. 34–44.
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Klochkova, V.G., Chentsov, E.L. Detailed optical spectroscopy of the B[e] Star MWC17. Astrophys. Bull. 71, 33–42 (2016). https://doi.org/10.1134/S1990341316010041
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DOI: https://doi.org/10.1134/S1990341316010041