A new method for determining the internal rotational angular velocity of the stars |
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Authors: | Hiroyasu Ando |
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Institution: | (1) Universitäts-Sternwarte Jena, G.D.R.;(2) Physics Dept., York University, Downsview, Canada |
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Abstract: | Infrared spectra of submicrometre-sized particles of several protosilicates have been used to derive mass absorption coefficients. These data have been applied in order to describe the infrared radiation from the source OH 26.5+0.6 in terms of a simple model. A good fit of the 10 m absorption feature could be achieved, but some discrepancies remain in the 20 m region. The reasons for the weakness of the 20 m band in infrared sources are discussed.The laboratory spectra revealed that the samples contained a small admixture of carbonates. Thus, some statements about the infrared spectrum of submicrometre-sized carbonate particles could also be made. |
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