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The Deuterium Abundance in QSO Absorption Systems: A Mesoturbulent Approach1
Published online by Cambridge University Press: 25 May 2016
Abstract
A new method, based on simulated annealing technique and aimed at the inverse problem in the analysis of intergalactic or interstellar complex spectra of hydrogen and metal lines, is outlined. We consider the process of line formation in clumpy stochastic media accounting for fluctuating velocity and density fields self-consistently. Two examples of the analysis of ‘H+D’-like absorptions seen at za = 3.514 and 3.378 towards APM 08279+5255 are presented.
- Type
- 3. Abundances of D, 3He and 4He
- Information
- Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 135 - 140
- Copyright
- Copyright © Astronomical Society of the Pacific 2000
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