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Non-isotropic Outflows in the Infrared: ISO Imaging of LBVs

Published online by Cambridge University Press:  12 April 2016

Norman R. Trams ,
C.I. van Tuyll ,
Robert H.M. Voors ,
Alex de Koter ,
Laurens B.F.M. Waters  and
Patrick W. Morris
Norman R. Trams
Affiliation:
Astrophysics Division, ESA Space Science Department, ESTEC, PO Box 299, 2200 AG Noordwijk, The Netherlands
C.I. van Tuyll
Affiliation:
Astronomical Institute, University of Amsterdam, Kruislaan 403, NL-1098 SJ Amsterdam, The Netherlands
Robert H.M. Voors
Affiliation:
Astronomical Institute Utrecht, Princetonplein 5, Utrecht, The Netherlands
Alex de Koter
Affiliation:
Astronomical Institute, University of Amsterdam, Kruislaan 403, NL-1098 SJ Amsterdam, The Netherlands
Laurens B.F.M. Waters
Affiliation:
Astronomical Institute, University of Amsterdam, Kruislaan 403, NL-1098 SJ Amsterdam, The Netherlands
Patrick W. Morris
Affiliation:
SRON Laboratory for Space Research, Sorbonnelaan 2, NL-3584 CA, Utrecht, The Netherlands

Abstract

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In this review we present the ISO imaging of nebulae around Luminous Blue Variables. Three LBVs have been imaged with ISO: HR Car, AG Car and the LBV candidate G79.29+0.46. The ISOCAM instrument did not resolve the nebula around HR Car. However some nebular emission lines are seen in the spectral energy distribution of this source. A proper deconvolution of the images may resolve the nebula. For AG Car and G79.29+0.46 the nebula is clearly resolved. The structure and intensity distribution of the nebular emission is dependent on the wavelength, indicating a separation between the ionised matter and the dust in the nebulae. Some model calculations are presented for the G79.29+0.46 nebula.

Type
Section I Observations of Non-spherical Winds
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 71 - 79
Copyright
Copyright © Springer-Verlag 1999

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