Detection of the J=1-0 and J=2-1 rotational lines of SiS in the molecular envelope of IRC + 10216

Details Detection of the J=1-0 and J=2-1 rotational lines of SiS in the molecular envelope of IRC + 10216 Detection of the J=1-0 and J=2-1 rotational lines of SiS in the molecular envelope of IRC + 10216

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101..238g&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 2, Aug. 1981, p. 238-240.

Astronomy and Astrophysics

Astrophysics

8

Carbon Stars, Line Spectra, Molecular Rotation, Molecular Spectroscopy, Silicon Compounds, Stellar Envelopes, Sulfides, Astronomical Spectroscopy, Brightness Temperature, Interstellar Masers, Interstellar Matter

Scientific paper

Searches for J = 1 → 0 transition in the v = 0,1 states as well for J = 2 → 1 transition in the ground vibrational state are presented. The J = 1 → 0, J = 2 → 1, v = 0 lines were detected toward IRC+102l6. The line temperature of the J = 2 → 1 transition agrees with the value predicted by Norris (1975), but the spikes in the line wings of the J = 1 → 0 profile are larger than the model value. Two possible explanations are: (1) The region emitting the J = 1 → 0 line is more extended than previously thought or (2) maser emission is present.

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