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Are the silicate crystallinities of oxygen-rich evolved stars related to their mass loss rates?

Published online by Cambridge University Press:  30 December 2019

Biwei Jiang ,
Jiaming Liu  and
Aigen Li
Biwei Jiang
Affiliation:
Department of Astronomy, Beijing Normal University, Beijing 100875, China email: [email protected]
Jiaming Liu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: [email protected]
Aigen Li
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA email: [email protected]
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Abstract

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A sample of 28 oxygen-rich evolved stars is selected based on the presence of crystalline silicate emission features in their ISO/SWS spectra. The crystallinity, measured as the flux fraction of crystalline silicate features, is found not to be related to mass loss rate that is derived from fitting the spectral energy distribution.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 425 - 426
Copyright
© International Astronomical Union 2019 

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