A survey of 3 microns emission features in stellar spectra

Details A survey of 3 microns emission features in stellar spectra A survey of 3 microns emission features in stellar spectra

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.199.1017a&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 199, June 1982, p. 1017-1024.

Astronomy and Astrophysics

Astronomy

55

Infrared Astronomy, Planetary Nebulae, Stellar Spectra, Atmospheric Windows, Emission Spectra, Molecular Spectra, Tables (Data)

Scientific paper

Spectra between 2.9 and 4.0 microns were taken of 56 emission-line stars and stellar planetary nebulae, and of the bipolar nebulae Roberts 22, M2-9 and Mz3. In seven (possibly eight) cases emission features were found between 3.2 and 3.6 microns. The emission features cover a broad range of wavelengths, and have disparate band shapes, indicating that no single material is responsible in any star. The features are observed both in carbon-rich WC10 stars and in the OH source Roberts 22. Spectra of the WC10 stars between 1.4 and 2.4 microns also show ionic lines which are attributed to H I and C II.

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