Observations of late type objects with a new spectrophotometer in the 8-13 micron range

Details Observations of late type objects with a new spectrophotometer in the 8-13 micron range Observations of late type objects with a new spectrophotometer in the 8-13 micron range

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94..280s&link_type=abstract

Astronomy and Astrophysics, vol. 94, no. 2, Feb. 1981, p. 280-284.

Physics

Optics

2

Infrared Spectrometers, Late Stars, Spectrophotometers, Stellar Spectrophotometry, Cosmic Dust, Optics, Supergiant Stars, Telescopes

Scientific paper

A description of a new Infrared Spectrophotometer using a cooled Circular Variable Filter with a mean spectral resolution of Δλ/λ = 0.02 in the range from 7.3 μm to 14.4 μm is presented. This instrument has been specifically designed for operation at the f/8 Cassegrain focus of the 1.23 m telescope on Calar Alto, Spain, and has been working since 1977. The results of observations of the late type objects BC Cyg, AFGL 2699, AFGL 2901, and AFGL 2613 are reported. The spectral features related to some intrinsic properties of the objects are discussed.

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