Detailed Optical Spectroscopy of the B[e] Star MWC 17
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 MWC 17 with the B[e] phenomenon. In the wavelength interval of 4050-6750 A, we identified numerous permitted and forbidden emissions, interstellar NaI lines, and diffuse interstellar bands (DIBs). Radial velocities were estimated from lines of different origin. As the systemic velocity, Vsys, the velocity of the forbidden emissions can be accepted: -47 kms-1 (relative to the local standard Vlsr = -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.