Long Chain Carbon Molecules in the Interstellar Medium
- 1 January 1980
- journal article
- research article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 87, 47-58
- https://doi.org/10.1017/s0074180900072144
Abstract
The long chain carbon molecules known as the cyanopolyynes (HCnN, n=3,5,7,9) are becoming increasingly more important in astrophysics. At present, the smallest member of the family, cyanoacetylene (HC3N), has been observed in at least 32 sources, and cyanodiacetylene (HC5N) in at least ten. Some 29 transitions of these two molecules have been detected to date, and the number of new sources and new lines is increasing quickly. Although the larger members of the family have not yet been found in sufficient abundance to permit studies in more than a few sources, the fact that they exist at all in detectable amounts is of interest from the standpoint of astrochemistry.Keywords
This publication has 20 references indexed in Scilit:
- Observations of HC5N and NH3 in TaurusThe Astrophysical Journal, 1979
- Cyanodiacetylene /HC5N/ in Heiles's cloud 2The Astrophysical Journal, 1979
- Cyanodiacetylene /HC5N/ in Sagittarius B2The Astrophysical Journal, 1979
- Cyanoacetylene and its C-13 species - Evidence against relative isotope fractionation and improved C-12/C-13 abundance ratiosThe Astrophysical Journal, 1978
- A study of the Taurus dark cloud complexThe Astrophysical Journal, 1978
- Microwave spectra of molecules of astrophysical interest XIII. CyanoacetyleneJournal of Physical and Chemical Reference Data, 1978
- Emission from highly excited rotational states of HC3N in dense cloudsThe Astrophysical Journal, 1977
- Theoretical study of the butadiynyl and cyanoethynyl radicals - Support for the identification of C3N in IRC + 10216The Astrophysical Journal, 1977
- Evidence for weak maser action in interstellar cyanodiacetyleneThe Astrophysical Journal, 1976
- Cloud collapse and star formationThe Astronomical Journal, 1976