1. High-resolution Ammonia Mapping of the Protostellar Core Cha-MMS1
- Author
-
Miikka S. Väisälä, Maarit Mantere, Oskari Miettinen, Jorma Harju, and Malcolm Walmsley
- Subjects
Physics ,Core (optical fiber) ,Space and Planetary Science ,High resolution ,Astronomy ,Astronomy and Astrophysics ,Astrobiology - Abstract
The nearby protostellar core Cha-MMS1 has been mapped in the NH3 (1, 1) line and the 1.2 cm continuum using the Australia Telescope Compact Array, ATCA. In addition, observations from Spitzer Space Telescope and Herschel Space Observatory are used to help the interpretation. An elongated condensation with a maximum length of 9000 AU is seen in ammonia. The condensation has a clear velocity gradient directed perpendicularly to the axis of elongation. The gradient can be interpreted as rotation around this axis. We suggest that the observed ammonia structure delineates a rotating envelope and dense gas entrained by a very young protostellar outflow.
- Published
- 2012