Variable 2.6 MM CO emission from Chi Cygni and Mira

Details Variable 2.6 MM CO emission from Chi Cygni and Mira Variable 2.6 MM CO emission from Chi Cygni and Mira

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218l..27l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 218, Nov. 15, 1977, p. L27-L30. Research supported by the Miller Ins

Other

32

Binary Stars, Carbon Monoxide, Emission Spectra, Microwave Emission, Mira Variables, Stellar Spectra, Variable Stars, Millimeter Waves, Molecular Excitation, Stellar Envelopes, Stellar Luminosity, Vibrational Spectra

Scientific paper

Time-variable emission from the 2.6-mm, v = 0, J = 1 - 0, transition of (C-12)(O-16) has been observed from the Mira variables Chi Cygni and Mira itself. The time variation could be due to variable vibrational excitation of the CO molecules as a result of changing stellar luminosity. A narrow CO emission line observed from Mira could be enhanced by stimulated emission. CO emission was also detected in five other stars.

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