Astrophysics and Space Science

, Volume 181, Issue 2, pp 237–250 | Cite as

Optical properties of circumstellar silicate grains

  • Kyung-Won Suh


The optical properties of circumstellar silicate dust grains around oxygen-rich giant stars are investigated with close attention to infrared observations of OH/IR stars. The optical constants are deduced from available astronomical and laboratory data. The deduced opacities at longer wavelengths (λ≥12 μm) for OH/IR stars are higher than the one for M-type Miras possibly because of the change of optical constants depending on temperature of dust grains. Absorption and scattering efficiencies are evaluated for various grain size distributions and shapes. The results of detailed radiative transfer model calculations based on our dust parameters are compared with observational data. The Planck mean values incorporating substantial far-infrared absorption are also calculated.


Dust Optical Property Observational Data Grain Size Distribution Radiative Transfer 
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  1. Bedijin, P. J.: 1987,Astron. Astrophys. 186, 136.Google Scholar
  2. Blanco, A., Bussoletti, E., Colangeli, L., Fonti, S., and Orofino, V.: 1988, in E. Bussoletti, C. Fusco, and G. Longo (eds.),Experiments on Cosmic Dust Analogues, Kluwer Academic Publishers, Dordrecht, Holland, p. 137.Google Scholar
  3. Bohren, C. F. and Huffman, D. R.: 1983,Absorption and Scattering of Light by Small Particles, Wiley and Sons, New York.Google Scholar
  4. Bowen, G. H.: 1988,Astrophys. J. 329, 299.Google Scholar
  5. Day, K. L.: 1976a,Astrophys. J. 203, L99.Google Scholar
  6. Day, K. L.: 1976b,Astrophys. J. 210, 614.Google Scholar
  7. Day, K. L.: 1979,Astrophys. J. 234, 158.Google Scholar
  8. Day, K. L.: 1981,Astrophys. J. 246, 110.Google Scholar
  9. Deguchi, S.: 1980,Astrophys. J. 236, 567.Google Scholar
  10. Draine, B. T. and Lee, H. M.: 1984,Astrophys. J. 285, 89.Google Scholar
  11. Egan, M. P., Leung, C. M., and Spagna, G. F.: 1987, ‘CSDUST 3: A Radiation Transport Code for a Dusty Medium with 1-D Planar, Spherical or Cylindrical Geometry’, preprint.Google Scholar
  12. Engels, D., Kreysa, E., Schultz, G. V., and Sherwood, W. A.: 1983,Astron. Astrophys. 124, 123.Google Scholar
  13. Forrest, W. J., Gillet, F. C., Houck, J. R., McCarthy, J. F., Merrill, K. M., Pipher, J. L., Puetter, R. C., Russel, R. W., Soifer, B. T., and Willner, S. P.: 1978,Astrophys. J. 219, 114.Google Scholar
  14. Gilman, R. C.: 1974,Astrophys. J. Suppl. 28 397.Google Scholar
  15. Herman, J., Isaacman, R., Sargent, A., and Habing, H. J.: 1984,Astron. Astrophys. 139, 171.Google Scholar
  16. IRAS Catalogues and Atlases: 1986,Point Source Catalogue, US Government Publication Office.Google Scholar
  17. Jones, T. W. and Merrill, K. M.: 1976,Astrophys. J. 209, 509.Google Scholar
  18. Kleinmann, S. G., Gillet, F. C., and Joyce, R. R.: 1981,Ann. Rev. Astron. Astrophys. 19, 411.Google Scholar
  19. Kozasa, T., Hasegawa, H., and Seki, J.: 1984,Astrophys. Space Sci. 98, 61.Google Scholar
  20. Kwok, S.: 1975,Astrophys. J. 198, 583.Google Scholar
  21. Leung, C. M.: 1976,J. Quant. Spectr. Rad. Trans. 16, 559.Google Scholar
  22. Merrill, K. M. and Stein, W. A.: 1976,Publ. Astron. Soc. Pacific 88, 285.Google Scholar
  23. Papoular, R. and Pégourié, B.: 1986,Astron. Astrophys. 156, 199.Google Scholar
  24. Prégourié, B. and Papoular, R.: 1985,Astron. Astrophys. 142, 451.Google Scholar
  25. Suh, K.-W.: 1988, Ph.D. Thesis, University of Minnesota, Minneapolis.Google Scholar
  26. Suh, K.-W., Jones, T. J., and Bowen, G. H.: 1990,Astrophys. J. 358, 588.Google Scholar
  27. Treffers, R. and Cohen, M.: 1974,Astrophys. J. 188, 545.Google Scholar
  28. Volk, K. and Kwok, S.: 1988,Astrophys. J. 331, 435.Google Scholar
  29. Werner, M. W., Beckwith, S., Gatley, I., Sellgren, K., Berriman, G., and Whiting, D. L.: 1980,Astrophys. J. 239, 540.Google Scholar
  30. Woolf, N. J. and Ney, E. P.: 1969,Astrophys. J.,155, 181.Google Scholar
  31. Yamamoto, T. and Hasegawa, H.: 1977,Prog. Theor. Phys. 58, 816.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Kyung-Won Suh
    • 1
  1. 1.Department of Astronomy and MeteorologyYonsei UniversitySeoulKorea

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