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Enrichment by Wolf-Rayet Stars and Other Massive Stars in Gas, Dust and Energy

Published online by Cambridge University Press:  03 August 2017

Martin Cohen
Martin Cohen*
Affiliation:
Radio Astronomy Laboratory-University of California Berkeley USA

Abstract

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I update previous estimates of the separate contributions for radiative energy, integrated total stellar wind mass and dust mass from Wolf-Rayet stars and other massive (OBA) stars. In the context of the intriguing dusty WC9 stars, I: (1) discuss the observability (or otherwise) between 0.4 and 23 μm of the condensation route from hot gas to carbon-rich grains; (2) urge caution in the use of 10 μm infrared spectra of these luminous stars to deduce the importance of silicates as a component of the interstellar medium, and (3) speculate on a possible new method for discovering new members of this relatively rare subtype based on IRAS Low Resolution Spectra. I review the observational evidence for dust condensation around SN 1987A.

Type
Session VI. Enrichment
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 323 - 334
Copyright
Copyright © Kluwer 1991 

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