Near-infrared observations of a new molecular feature in IRC + 10216

Details Near-infrared observations of a new molecular feature in IRC + 10216 Near-infrared observations of a new molecular feature in IRC + 10216

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231l..31k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 231, July 1, 1979, p. L31-L35.

Astronomy and Astrophysics

Astronomy

1

Carbon Stars, Infrared Astronomy, Molecular Gases, Stellar Envelopes, Hydrogen, Light Curve, Near Infrared Radiation, Nitrogen, Stellar Spectra

Scientific paper

This letter presents a spectrum of IRC + 10216 in the 3000-4400-kayser region at 9-kayser resolution. A molecular feature at 3400-3600 kaysers has been detected which is attributed to an unspecified N-H bonded molecule; the feature appears to be variable in phase with the infrared light curve. Evidence is given for temperature variations of the emitting dust shell in phase with the infrared light curve. The results suggest that the variability of the molecular feature is due to reversible dissociation of the responsible molecule, which could occur at the higher temperatures accompanying the maxima of the light curve.

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