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Metal Abundances and Kinematics of Ly-α Absorbers
Published online by Cambridge University Press: 26 May 2016
Abstract
Both high resolution spectra of QSOs observed at the 8-10 m telescopes and advanced methods of data analysis are crucial for accurate measurements of the chemical composition and physical parameters of the intervening clouds. An overview of our recent results obtained with the Monte Carlo inversion (MCI) procedure is presented. This includes: (1) variations of the shape of the local background ionizing continuum in the 1-5 Ryd range at redshift z ~ 2.8 – 3.0; (2) an inverse correlation between the measured metallicity, [C/H], and the absorber line-of-sight linear size, L; (3) a functional dependence between the line-of-sight velocity dispersion, σv, and L.
- Type
- Part 2. Origin
- Information
- Symposium - International Astronomical Union , Volume 217: Recycling Intergalactic and Interslettar Matter , 2004 , pp. 234 - 239
- Copyright
- Copyright © Astronomical Society of the Pacific 2004