Detection of new ammonia sources
Abstract
A search for ammonia emission from compact H II regions, H2O masers, Herbig-Haro objects and other protostellar indicators has yielded 35 new detections. A comparison of the linewidths of NH3 (J = 1, K = 1) and (C-12)O (J = 1-0) emission indicates that turbulent or systematic velocities do not increase in the central cores of molecular clouds.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 1981
- DOI:
- 10.1093/mnras/195.2.387
- Bibcode:
- 1981MNRAS.195..387M
- Keywords:
-
- Ammonia;
- Astronomical Spectroscopy;
- Emission Spectra;
- Molecular Clouds;
- Astronomical Catalogs;
- H Ii Regions;
- Herbig-Haro Objects;
- Interstellar Masers;
- Nebulae;
- Protostars;
- Water Masers;
- Astrophysics