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Non-LTE Analysis of CNO Lines in Vega
Published online by Cambridge University Press: 12 April 2016
Abstract
Non–LTE calculations for neutral C, N, and O are performed to determine the accurate abundances of these elements in the atmosphere of Vega by taking the non–LTE effects realistically into consideration. It is shown that C and O are mildly deficient by ∼0.2–0.3dex while N shows an appreciably large underabundance by ∼0.8dex.
- Type
- V. Theory of CP Star Photospheres
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- Copyright © Astronomical Society of the Pacific 1993