The nebulae around LBVs: a multiwavelength approach

Journal
Date Issued
2011
Author(s)
•
•
•
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Hora, Joseph L.
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Fazio, Giovanni
Abstract
We present first results of our study of a sample of Galactic LBV, aimed to contribute to a better understanding of the LBV phenomenon, by recovering the mass-loss history of the central object from the analysis of its associated nebula. Mass-loss properties have been derived by a synergistic use of different techniques, at different wavelengths, to obtain high-resolution, multi-wavelength maps, tracing the different emitting components coexisting in the stellar ejecta: the ionized/neutral gas and the dust. Evidence for asymmetric mass-loss and observational evidence of possible mutual interaction between gas and dust components have been observed by the comparison of mid-IR (Spitzer/IRAC, VLT/VISIR) and radio (VLA) images of the nebulae, while important information on the gas and dust composition have been derived from Spitzer/IRS spectra.
Volume
80
Start page
335
Uri
Url
Issn Identifier
0037-9565
Ads BibCode
2011BSRSL..80..335U
Rights
open.access
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