Are Damped Lyman alpha Systems Rotating Disks ?

1998/01/26 by Cedric Ledoux, C. Ledoux, Ledoux, Cedric +5
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9801243

2 pages, LaTeX, 2 PostScript figures, uses conf_iap.sty. To appear in the Proceedings of the 13th IAP Colloquium: Structure and Evolution of the IGM from QSO Absorption Line Systems, eds P. Petitjean and S. Charlot

arxiv created 1998/01/26 · openalex publication_date 1998/01/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report on high spectral resolution observations of five damped Lyman alpha systems whose line velocity profiles and abundances are analyzed. By combining these data with information from the literature, we study the kinematics of the low and high ionization phases of damped systems and discuss the possibility that part of the motions is due to rotation.

Related

• Probing High-Redshift Disks with Damped Lyman Alpha Systems
• On the kinematics of damped Lyman-alpha systems
• Optical Counterparts to Damped Lyman Alpha Systems
• Damped Ly-alpha Systems in Semi-Analytic Models: Sensitivity to dynamics, disk properties, and cosmology
• What Damped Ly-alpha Systems Tell Us About the Radial Distribution of Cold Gas at High Redshift