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This document summarizes a study of hot ionized gas associated with damped Lyman-alpha systems at redshifts between 2.1 and 3.1. The study searched for O VI and N V absorption in 35 damped Lyman-alpha systems using VLT/UVES spectra with signal-to-noise greater than 10. Twelve systems were found to show detections of O VI absorption. Photoionization modeling and analysis of line widths suggest that two gas phases exist - a hot, collisionally ionized phase seen in broad O VI components, and a warm, photoioniz
- Author
- Tuoma2
- Language
- EN