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Comparison of 3 Micron Features of Trapped H2O and H2O Frost in SiO Condensate with Observed Dust Features

Published online by Cambridge University Press:  12 April 2016

S. Wada
Affiliation:
Dept. of Chemistry, University of Electro-Communications, Chofugaoka, Chofu, Tokyo 182, Japan
A. Sakata
Affiliation:
Dept. of Applied Phys. and Chem., University of Electro-Communications, Chofugaoka, Chofu, Tokyo 182, Japan
A.T. Tokunaga
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Dr., Honolulu, HI 96822U.S.A.

Abstract

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We synthesized a SiO condensate trapping H20 and H20 ice deposited on it. An IR spectrum of the condensate and that of a protostar NGC 7538/IRS 9 were compared. The spectrum of the condensate agreed well with the protostellar spectrum.

Type
Origin of Interplanetary Dust: from Comets and Asteroids, Back to Interstellar Dust
Copyright
Copyright © Kluwer 1991

References

Aitken, D.K., Roche, P.F., Bailey, J.A., Briggs, G.P., Hough, J.H., and Thomas, J.A. (1986) ‘Infrared spectropolarimetry of the Galactic Centre: magnetic alignment in the discrete sourcesMon. Not. R. astr. Soc. 218, 363384.CrossRefGoogle Scholar
Butchart, I., McFadzean, A.D., Whittet, D.C.B., Geballe, T.R., and Greenberg, J.M. (1986) #x2019;Three micron spectroscopy of the Galactic Center Source IRS 7.’ Astron. Astrophys. 154, L5L7.Google Scholar
Day, K.L., and Donn, B. (1978) ’An Experimental Investigation of the Condensation of Silicate Grains.’ Ap. J. 222, L45L48.CrossRefGoogle Scholar
Léger, A., Klein, J., de Cheveigne, S., Guinet, C., Defourneau, D., and Belin, M. (1979) ’The 3.1 μm absorption in molecular clouds is probably due to amorphous H2O iceAstron. Astrophys. 79, 256259.Google Scholar
McFadzean, A. D., Whittet, D.C.B., Longmore, A.J., Bode, M.F., and Adamson, A.J., (1989) ’Infrared studies of dust and gas towards the Galactic Centre: 3-5 μm spectroscopyMon. Not. R. astr. Soc. 241, 873882.CrossRefGoogle Scholar
Nuth, J.A., and Donn, B. (1982) ’Laboratory Measurements of Amorphous Silicate Smokes and the Infrared Spectra of Oxygen-rich Star.’ Ap. J. 257, L103L105.CrossRefGoogle Scholar
Tanaka, M., Sato, S., Nagata, T., and Yamamoto, T. (1990) ’Three micron ice-band features in the ρ Ophuchi sourceAp. J. 352, 724730.CrossRefGoogle Scholar
Wada, S., Sakata, A., and Tokunaga, A.T. (1990) ’Trapped H2O in SiO condensate: an explanation for the 3 μm band observed toward the Galactic Center’ Ap. J. submitted.CrossRefGoogle Scholar
Willner, S.P. Gillett, F.C., Herter, T.L., Jones, B., Krassner, J., Merrill, K.M., Pipher, J.L., Puetter, R.C., Rudy, R.J., Russell, R.W., and Soifer, B.T. (1982) ‘Infrared Spectra of Protostars: Composition of the Dust ShellsAp. J. 253, 174187.CrossRefGoogle Scholar