Intergal field spectroscopy survey of classical LBV stars in M33

Details Intergal field spectroscopy survey of classical LBV stars in M33 Intergal field spectroscopy survey of classical LBV stars in M33

2006-02-15

arxiv.org/abs/astro-ph/0602336v2

Astronomy and Astrophysics

Astrophysics

Proceedings of the ESO and Euro3D Workshop "Science Perspectives for 3D Spectroscopy", Garching (Germany), October 10-14, 2005

Scientific paper

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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