A search for C2 in the interstellar spectrum of Zeta Ophiuchi

Details A search for C2 in the interstellar spectrum of Zeta Ophiuchi A search for C2 in the interstellar spectrum of Zeta Ophiuchi

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...213l.129l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 213, May 1, 1977, p. L129, L130

Astronomy and Astrophysics

Astrophysics

9

Carbon, Early Stars, Infrared Spectra, Interstellar Matter, Molecular Spectra, Near Infrared Radiation, Astronomical Models, Cosmology, Interstellar Extinction, Spectral Line Width

Scientific paper

A search has been undertaken for interstellar C2 in the near-infrared spectra of moderately and highly reddened early-type stars. In the case of Zeta Oph, an upper limit of 14 mA is reported for the equivalent width of the 1-0 R(0) line of the Phillips system. This upper limit is about a factor of 2 smaller than the upper limit to the equivalent width predicted by Black and Dalgarno (1977) on the basis of cosmochemical models.

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