Detection of Interstellar c2 Toward CYGNUS-OB-2:12 Rho-Persei Omicron-Andromedae Rho-Ophiuchi and Nu-Cygni

Details Detection of Interstellar c2 Toward CYGNUS-OB-2:12 Rho-Persei Omicron-Andromedae Rho-Ophiuchi and Nu-Cygni Detection of Interstellar c2 Toward CYGNUS-OB-2:12 Rho-Persei Omicron-Andromedae Rho-Ophiuchi and Nu-Cygni

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....98..408c&link_type=abstract

Astronomy and Astrophysics, Vol. 98, P. 408, 1981

Astronomy and Astrophysics

Astrophysics

6

Scientific paper

Using a tilting Filter Fabry-Pérot Spectrophotometer mounted at the Cassegrain focus of the 182 cm Asiago telescope we have detected rotational fine structure lines of the Phillips (2-0) band of interstellar C2 toward five stars.
For Cyg No. 12, ο And, and ζ Per rotational temperatures and total column densities could be derived. In the spectrum of ν Cyg, ζ Oph, and ζ Peg a strong unidentified absorption feature at 8759.7 Å is also present.
Cyg No. 12 and ο And show beside the C2-absorption lines, OH emission originating probably from a circumstellar shell.
The results obtained are discussed and compared also with other experimental data.

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