H I and dust in Kutner's cloud
Abstract
A map in the 1.420 GHz line of H I, with an angular resolution of 9.1 arcmin, is made toward Kutner's Cloud and the region between Kutner's Cloud and Heiles' Cloud. It is assumed that the cold H I in the clouds is located only in front of, and absorbs the H I background; the column density of cold H I, N(H I), is obtained from this absorption. The visual extinction for this region is determined from star counts on red and blue POSS prints. It is noted that most of the gas in the cloud is in the form of H2. The column density of H2 is obtained from the visual extinction and the extinction-to-gas ratio given by Bohlin et al. (1978).
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1981
- Bibcode:
- 1981A&A....96..202B
- Keywords:
-
- Cosmic Dust;
- Hydrogen Clouds;
- Interstellar Gas;
- Abundance;
- Gas Density;
- Hydrogen Atoms;
- Interstellar Extinction;
- Optical Thickness;
- Star Distribution;
- Astrophysics