Deep H $_{\bf \alpha}$ survey of the Milky Way. III. The l = 338 area
Open Access
- 15 November 1996
- journal article
- Published by EDP Sciences in Astronomy and Astrophysics Supplement Series
- Vol. 120 (1) , 41-56
- https://doi.org/10.1051/aas:1996273
Abstract
The Galactic plane has been observed between l = 337 and l = 342 in the frame of an Hα Survey of the Southern Milky Way. This area is known to be rich in radio sources but poor in Hα emission. The analysis of high resolution profiles of the Hα emission observed in this direction nevertheless enabled to distinguish 6 different velocity components: 2 faint layers of diffuse ionized hydrogen at 0 and -12 km (VLSR), 2 brighter layers at -28 and -39 km including individual HII regions, a faint patch at -50 km and two isolated bright HII regions at -61 km . Combining these Hα observations with stellar and radio data we conclude about the most probable distances for the different components.Keywords
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