Unidentified lines in molecular clouds and a search for C-14 in IRC +10216

Details Unidentified lines in molecular clouds and a search for C-14 in IRC +10216 Unidentified lines in molecular clouds and a search for C-14 in IRC +10216

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...214..394r&link_type=abstract

Astrophysical Journal, Part 1, vol. 214, June 1, 1977, p. 394-398. Research supported by the Alfred P. Sloan Foundation

Astronomy and Astrophysics

Astronomy

10

Carbon Stars, Carbon 14, Ethylene Oxide, Infrared Astronomy, Interstellar Matter, Nebulae, Atmospheric Attenuation, Brightness Temperature, Radio Sources (Astronomy), Signal To Noise Ratios, Spectrum Analysis

Scientific paper

Two spectral features have been detected toward the Kleinmann-Low infrared nebula in Orion that agree in frequency with the 7(25)-7(16) and 7(35)-7(26) rotational transitions of the ring-structured molecule ethylene oxide (CH2)2O. A feature agreeing in frequency with the 8(24)-8(45) transition probably also was detected; however, seven other transitions in (CH2)2O were not. Additional unidentified lines were detected in Ori A and Sgr B2. Searches for H(C-14)N and (C-14)O in the luminous carbon star IRC +10216 were unsuccessful. However, an unidentified line was found in IRC +10216 that was not detected in the KL nebula.

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