Analysis of a Transverse Section of the Milky way in Aquila.
Abstract
The analysis of this narrow section, 6o° long, across the Milky Way around longitude 13° is based on star counts to magnitude 15, color excesses of stars determined at three centers, and published counts of extragalactic nebulae. The obscuration is ascribed to two clouds: one cloud at 500 parsecs, which covers the entire section and is not far from uniform, aside from darker spots at two places; the second cloud at 2000 parsecs, whose density increases fairly symmetrically from latitude 150 to the galactic equator. The density functions near the galactic plane decrease at first with distance from the sun and then in- crease to values at 2000-3000 parsecs, which are comparable with that near the sun. Some of the results of the analysis are considered provisional
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 1941
- DOI:
- 10.1086/144355
- Bibcode:
- 1941ApJ....94..493B