SIMBAD references

2005MNRAS.364..335M - Mon. Not. R. Astron. Soc., 364, 335-343 (2005/November-3)

MWC 930 - a new luminous blue variable candidate.

MIROSHNICHENKO A.S., BJORKMAN K.S., GROSSO M., LEVATO H., GRANKIN K.N., RUDY R.J., LYNCH D.K., MAZUK S. and PUETTER R.C.

Abstract (from CDS):

We present the results of optical high-resolution and near-infrared low-resolution spectroscopy and multicolour optical and near-infrared photometry of the emission-line star MWC 930. The spectrum is rich with Feii emissions, most of which have P Cyg-type profiles. The emission lines are strong and narrow, indicating a powerful stellar wind with a low terminal velocity (v∼ 140km/s). The photospheric absorption lines are broad and show splitting, which might be due to the object's binarity. MWC 930 is most probably located in the Norma spiral arm at a distance of D= 3-4kpc. This strong and slow wind as well as the star's luminosity (logL/L∼ 5.5) and the infrared excess shape suggest that MWC 930 is an unusual B-type supergiant, most likely undergoing the luminous blue variable evolutionary phase.

Abstract Copyright: 2005 The Authors. Journal compilation © 2005 RAS

Journal keyword(s): techniques: photometric - techniques: spectroscopic - circumstellar matter - stars: emission-line, Be - stars: individual: MWC 930

Simbad objects: 20

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2020.08.03-21:35:36

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