1998/11/18 by Michael D. Gladders, T. E. Clarke, Tracy E. Clarke +38
Computer Science · Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Advanced Computational Techniques and Applications #Astrophysics (astro-ph) #FOS: Physical sciences #Geophysical Methods and Applications #Seismic Imaging and Inversion Techniques #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9811291
11 pages, 5 figures, to appear in 'High-Velocity Clouds', ASP Conference Series
arxiv created 1998/11/18 · openalex publication_date 1998/11/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present the first set of distance limits from the David Dunlap Observatory Intermediate Velocity Cloud (DDO IVC) distance project. Such distance measures are crucial to understanding the origins and dynamics of IVCs, as the distances set most of the basic physical parameters for the clouds. Currently there are very few IVCs with reliably known distances. This paper describes in some detail the basic techniques used to measure distances, with particular emphasis on the the analysis of interstellar absorption line data, which forms the basis of our distance determinations. As an example, we provide a detailed description of our distance determination for the Draco Cloud. Preliminary distance limits for a total of eleven clouds are provided.