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Intergal field spectroscopy survey of classical LBV stars in M33

O. Sholukhova·P. Abolmasov·S. Fabrika·V. Afanasiev·M. Roth
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Abstract

Five well-known LBV stars in M33 were observed with the Multi-Pupil Fiber Spectrograph (MPFS) on the 6-m Russian telescope. We observed LBVs varA, varB, varC, var2 and var83. In three of them, var2, var83, varB, large-scale nebulae were found with sizes from 15 pc and larger. The nebula shapes are complex, like one-side tails or conical nebulae. They all are related to their LBV stars. In var2 and var83 stars we found radial velocity gradients 15-30 km/s across their nebulae. The stars varA and varC do not show extended nebulae, but nebular lines are certainty present in their spectra.

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O. Sholukhova, P. Abolmasov, S. Fabrika, V. Afanasiev, M. Roth. 2006-02-17. Intergal field spectroscopy survey of classical LBV stars in M33. https://arxiv.org/abs/astro-ph/0602336

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