Observations of 40-70 micron bands of ice in IRAS 09371+1212 and other stars

Details Observations of 40-70 micron bands of ice in IRAS 09371+1212 and other stars Observations of 40-70 micron bands of ice in IRAS 09371+1212 and other stars

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290..379o&link_type=abstract

In ESA, Infrared Spectroscopy in Astronomy p 379-380 (SEE N90-19084 11-89)

Astronomy and Astrophysics

Astronomy

Giant Stars, Ice, Line Spectra, M Stars, Stellar Envelopes, Carbon Monoxide, Infrared Spectroscopy, Interplanetary Dust, Stellar Color, Stellar Spectra, Stellar Temperature

Scientific paper

The observations of the M giant star, IRAS 09371+1212, in the 40 to 70 microns emission bands, are reported. This star has a circumstellar CO envelope, and a unique infrared color, attributed to ice emission bands. The observations performed in February 1988, using grating spectrometer, showed that the far infrared bands of ice are the strongest known in the sky, and that its dust temperature (50K) is the lowest known for a circumstellar envelope. The 43 microns band of ice is also detected in several very cold circumstellar envelopes.

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