A Spitzer IRS survey of Wolf-Rayet stars at 10–20 microns

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A Spitzer IRS survey of Wolf-Rayet stars at 10–20 microns
 
Ignace, R.; Cassinelli, J.P.; Tracy, G.; Lamers, H.J.G.L.M.; Churchwell, E.B.
(2008) de Koter, A., Smith, L.J., Waters, L.B.F.M. (eds.), Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006, pp. 177 - 178
Astronomical Society of the Pacific conference series, pp. 177 - 178
(Part of book)
Abstract
We report on a mid-infrared survey of Wolf-Rayet stars using the Spitzer IRS/SH instrument for types WN4-WN7 and WC4-WC7. Strong emission line spectra are seen, including forbidden emission lines. Surprisingly, the WN stars appear to show broad emission “bumps” that may be consistent with silicate dust grains.
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Open Access version via Utrecht University Repository Publisher version
 
ISBN: 978-1-58381-644-8
Publisher: Astronomical Society of the Pacific
(Non peer reviewed)
 
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