The motions in N51D, a bubble-like nebula in the Large Magellanic Cloud.
Abstract
A large bubble-like H II region in the Large Magellanic Cloud, N51D is shown to have internal motions of about 30 km/s but structure that is more complex than that expected for an expanding spherical shell. It is proposed that the motions are mainly driven by supersonic stellar winds from early-type stars in the central cluster, NGC 1955, and that the departures from spherical symmetry arise from interactions with a nonuniform component of the interstellar medium.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1980
- DOI:
- 10.1086/158089
- Bibcode:
- 1980ApJ...239...65L
- Keywords:
-
- Gas Dynamics;
- Magellanic Clouds;
- Nebulae;
- Stellar Winds;
- Fabry-Perot Interferometers;
- Flow Velocity;
- H Ii Regions;
- Interstellar Gas;
- Astrophysics