Ice grains in the dust disk of the bipolar nebula M 1-92

Details Ice grains in the dust disk of the bipolar nebula M 1-92 Ice grains in the dust disk of the bipolar nebula M 1-92

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290..351e&link_type=abstract

In ESA, Infrared Spectroscopy in Astronomy p 351-353 (SEE N90-19084 11-89)

Astronomy and Astrophysics

Astronomy

1

Accretion Disks, Ice, Infrared Astronomy, Infrared Spectra, Interplanetary Dust, Nebulae, Infrared Telescopes, Nasa Space Programs, Spectrum Analysis, Two Body Problem

Scientific paper

The 2.4 to 3.8 microns spectra of the bipolar nebula M 1-92 is investigated. The data is obtained with the cooled grating array spectrometer at the NASA infrared telescope facility. Data is obtained at five positions of the object: one coinciding with the illuminating star, and the rest distributed along the dust torus of the bipolar nebula. No spectral signature is observed at the position of the star. A narrow 3.1 microns absorption is observed in all four positions of the torus. The feature is interpreted as being due to a mixture of pure amorphous and crystalline water ices.

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