Rotational temperatures of cyanodiacetylene in Sagittarius B2, TMC-1, and IRC +10216

Details Rotational temperatures of cyanodiacetylene in Sagittarius B2, TMC-1, and IRC +10216 Rotational temperatures of cyanodiacetylene in Sagittarius B2, TMC-1, and IRC +10216

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...254..111j&link_type=abstract

Astrophysical Journal, Part 1, vol. 254, Mar. 1, 1982, p. 111-115.

Astronomy and Astrophysics

Astronomy

13

Acetylene, Cyano Compounds, Hydrogen Clouds, Interstellar Chemistry, Molecular Clouds, Molecular Rotation, Brightness Temperature, Interstellar Matter, Line Spectra, Radio Sources (Astronomy), Sagittarius Constellation

Scientific paper

Four consecutive HC5N transitions J = 7-6, 8-7,9-8, and 10-9 have been recorded for each of the three sources Sgr B2, TMC 1, and IRC + 10216. The observed line brightness temperatures have been used to derive HC5N rotational temperatures: 28 K for Sgr B2, 5.5 K for TMC-1, and 13 K for IRC + 10216. These are consistent with temperatures previously estimated for these molecular clouds. The J = 55-54 transition of HC11N was searched in TMC-1 but was not found.

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