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HH 114 MMS: a new chemically active outflow.
- Source :
-
Astronomy & Astrophysics / Astronomie et Astrophysique . Apr2013, Vol. 552 Issue 2, pL9-L12. 4p. - Publication Year :
- 2013
-
Abstract
- Context. A small group of bipolar protostellar outflows display strong emission from shock-tracer molecules such as SiO and CH3OH, and are generally referred to as "chemically active". The best-studied outflow from this group is the one in L 1157. Aims. We study the molecular emission from the bipolar outflow powered by the very young stellar object HH 114 MMS and compare its chemical composition with that of the L 1157 outflow. Methods. We have used the IRAM 30 m radio telescope to observe a number of transitions from CO, SiO, CH3OH, SO, CS, HCN, and HCO+ toward the HH 114 MMS outflow. The observations consist of maps and a two-position molecular survey. Results. The HH 114 MMS outflow presents strong emission from a number of shock-tracer molecules that dominate the appearance of the maps around the central source. The abundance of these molecules is comparable to the abundance in L 1157. Conclusions. The outflow from HH 114 MMS is a spectacular new case of a chemically active outflow. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BIPOLAR outflows (Astrophysics)
*RADIO telescopes
*SILICON oxide
*METHANOL
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Volume :
- 552
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Astronomy & Astrophysics / Astronomie et Astrophysique
- Publication Type :
- Academic Journal
- Accession number :
- 89750454
- Full Text :
- https://doi.org/10.1051/0004-6361/201321303