Ground-based infrared spectrophotometry of evolved objects and late-type stars

Details Ground-based infrared spectrophotometry of evolved objects and late-type stars Ground-based infrared spectrophotometry of evolved objects and late-type stars

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...54..309e&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 54, Nov. 1983, p. 309-314.

Astronomy and Astrophysics

Astronomy

24

Infrared Astronomy, Late Stars, Planetary Nebulae, Stellar Spectrophotometry, Absorption Spectra, Infrared Spectrophotometers, Line Spectra, M Stars, Stellar Evolution

Scientific paper

Spectrophotometry in the 2 - 4 μm and 8 - 13 μm bands is presented for 7 objects representing late stages of stellar evolution: the "protoplanetary" nebulae M 2-9 and M 1-92, the nebular objects CRL 2088 and CRL 3181, and the late-type oxygen-rich stars CRL 2413, CRL 3022 and W 80-IR star. The Br γ line has been detected in M 2-9. A weak absorption feature at 3.08 μm due to water ice is present in the spectrum of M 1-92. It does not exhibit the long wavelength wing characteristic of many IR sources associated with molecular clouds. The data for the W 80 star rule out the recent suggestion that it may be an exciting star of the NGC 7000/IC 5070 complex.

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