Red spectra of the brightest stars in Cygnus OB2 - Possible detection of two new interstellar bands

Details Red spectra of the brightest stars in Cygnus OB2 - Possible detection of two new interstellar bands Red spectra of the brightest stars in Cygnus OB2 - Possible detection of two new interstellar bands

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102.1406t&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Dec. 1990, p. 1406-1412. Research supported by the

Astronomy and Astrophysics

Astronomy

5

Interstellar Matter, O Stars, Stellar Spectra, Astronomical Spectroscopy, Brightness Distribution, Cosmic Dust, Cygnus Constellation, Spectral Line Width, Supergiant Stars

Scientific paper

The stellar and interstellar spectra of the 12 brightest stars in the Cygnus OB2 association are described. The observations were made in the wavelength range 5800 A-8500 A, at about 7 A resolution. Two new lines, centered near 7430 A and 7932 A, may be previously undetected interstellar bands. The former may be formed in the interstellar medium as well as in the dust environment of Cyg OB2, while the latter may be formed only in the dust environment of Cyg OB2.

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