H I in the galaxy.
Abstract
An observational review on H I in the Galaxy is presented. Attention is given to observations of interstellar atomic hydrogen from Lyman-alpha and the 21-cm line through indirect tracers such as dust and gamma rays; to what can be learned from such observations; to what the H I sky looks like; and to the state of knowledge in this area and the future prospects. Consideration is also given to results from recent H I investigations that bear on two important areas: the spatial organization of interstellar H I and its vertical distribution in the Galaxy.
- Publication:
-
Annual Review of Astronomy and Astrophysics
- Pub Date:
- 1990
- DOI:
- 10.1146/annurev.aa.28.090190.001243
- Bibcode:
- 1990ARA&A..28..215D
- Keywords:
-
- H I Regions;
- Milky Way Galaxy;
- Absorption Spectra;
- Lyman Alpha Radiation;
- Molecular Clouds;
- Radio Emission;
- Ultraviolet Astronomy;
- Very Long Base Interferometry;
- Astrophysics