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Infrared Tracers of Mass-Loss Histories and Wind-ISM Interactions in Hot Star Nebulae

Published online by Cambridge University Press:  01 December 2007

Patrick Morris
Patrick Morris
Affiliation:
NASA Herschel Science Center, IPAC, Caltech, M/C 100-22, Pasadena, CA 91125 email: pmorris@ipac.caltech.edu
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Abstract

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Infrared observations of hot massive stars and their environments provide a detailed picture of mass loss histories, dust formation, and dynamical interactions with the local stellar medium that can be unique to the thermal regime. We have acquired new infrared spectroscopy and imaging with the sensitive instruments onboard the Spitzer Space Telescope in guaranteed and open time programs comprised of some of the best known examples of hot stars with circumstellar nebulae, supplementing with unpublished Infrared Space Observatory spectroscopy. Here wepresent highlights of our work on the environment around the extreme P Cygni-type star HDE316285, providing some defining characteristics of the star's evolution and interactions with the ISM at unprecented detail in the infrared.

Keywords

stars: mass loss – circumstellar matter – stars: windsoutflows – infrared: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S250: Massive Stars as Cosmic Engines , December 2007 , pp. 361 - 366
Copyright
Copyright © International Astronomical Union 2008

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