Cyanoallene (H2CCCHCN) has been observed with the 100-m Effelsberg Telescope towards the dark Taurus molecular cloud (TMC-1) in four different rotational transitions (JK-K+ = 40,4-30,3, 50,5-40,4, 60,6-50,5 and 70,7-60,6) at the frequency range from 20 to 35 GHz. The existence of its isomer methylcyanoacetylene was confirmed with its K = 0 and K = 1 components of the 5K-4K transition. This result was predicted from laboratory measurements. Our attempt of searching for both isomers towards Orion-KL, however, remains unsuccessful. Possible explanations are briefly discussed.
Astrochemistry - From Laboratory Studies to Astronomical Observations
- Pub Date:
- September 2006
- Molecular and chemical processes and interactions;
- Atomic molecular and chemical and grain processes;
- Molecular clouds H<sub>2</sub> clouds dense clouds and dark clouds