The detection of HC9N in interstellar space.
Abstract
With a molecular weight of 123 amu and 11 atoms, HC9N (cyano-octatetra-yne) is the heaviest and largest molecule yet detected in interstellar space. The J = 18-17 and J = 25-24 transitions have been observed in Heiles's Cloud 2 by using a molecular constant obtained by extrapolation from the lighter cyanopolyyne molecules. The column density is estimated to be trillion per sq cm, down by a factor of 4 from that of HC9N in the same source.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1978
- DOI:
- 10.1086/182739
- Bibcode:
- 1978ApJ...223L.105B
- Keywords:
-
- Brightness Temperature;
- Cyano Compounds;
- Interstellar Chemistry;
- Molecular Spectra;
- Abundance;
- Astronomical Spectroscopy;
- Molecular Weight;
- Astrophysics;
- Interstellar Matter:Molecules