The nebulae around LBVs: a multiwavelength approach

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

http://hdl.handle.net/20.500.12386/32966

Url

https://popups.uliege.be/0037-9565/index.php?id=2785

Issn Identifier

0037-9565

Ads BibCode

2011BSRSL..80..335U

Rights

open.access

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document.pdf

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333.52 KB

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Checksum (MD5)

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Description

arXiv

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The nebulae around LBVs: a multiwavelength approach

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