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Optical Properties of Cometary Dust

Published online by Cambridge University Press:  12 April 2016

David J. Lien
David J. Lien*
Affiliation:
Steward Observatory

Abstract

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Cometary dust is observed in a variety of ways: scattered light, thermal emission, stellar occultations, coma and tail morphology, radar echoes, and meteors associated with comets. To interpret these observations with respect to the physical parameters of the dust (size, shape, and composition) and the properties of the dust-emitting region, the physics of how electromagnetic radiation interacts with small particles must be understood.

The interaction between electromagnetic radiation and a small particle depends on the size, shape, and composition of the particle. The composition determines the optical constants of the material. Classically, a solid can be approximated by a collection of bound charges with a number of resonant frequencies. The optical constants (the index of refraction or dielectric constant) are a measure of the ability of the material to vibrate in response to an incoming electromagnetic wave. The laboratory measurement of optical constants is very difficult, and many published optical constants may be in error. Care must also be taken in choosing the optical constants that best represent the assumed composition of the cometary dust.

Scattering theory is usually synonymous with Mie theory, although Mie theory pertains only to spherical particles. In many cases, homogeneous spheres may be good approximations of the dust in the coma, but an understanding of the effects of non-sphericity and heterogeneity is essential to determine the limitations of the spherical approximation. A variety of methods exist that, although computationally intensive, do provide insight into shape effects.

Type
Section VI: Cometary Dust
Information
International Astronomical Union Colloquium , Volume 116 , Issue 2: Comets in the Post-Halley Era , 1991 , pp. 1003 - 1041
Copyright
Copyright © Kluwer 1991

References

A’Hearn, M. F., 1982. In Comets, ed. Wilkening, L.L., University of Arizona Press, Tucson, p. 433.Google Scholar
A’Hearn, M. F., and Millis, R., 1980. Astron. J. 85, 1528.Google Scholar
A’Hearn, M.F., Schleicher, D., Feldman, P., Millis, R., and Thompson, D., 1984. Astron. J. 89, 579.Google Scholar
Alexander, N., and Bates, C.W., 1984. Sol. State Comm., 51, 331.Google Scholar
Asano, S., and Yamamoto, G., 1975. Appl. Opt. 14, 962.Google Scholar
Aspnes, D.E., 1985. In Handbook of Optical Constants of Solids, ed. Palik, E.D., Academic Press, New York, p. 89.Google Scholar
Barber, P., and Yeh, C., 1975. Appl. Opt. 14, 2864.Google Scholar
Bell, E.E., 1967. In Handbuch der Physik, ed. Flügge, S., Springer-Verlag, New York, Vol. 25, 2a, p. 1.Google Scholar
Bell, R.J., Ordal, M.A., and Alexander, R.W., 1985. Appl. Opt. 24, 3680.Google Scholar
Berry, M.V., and Percival, I.C., 1986. Optica Acta 33, 577.Google Scholar
Bobrovnikoff, N.T., 1929. Publ. Astron. Soc. Pacific 40, 164.Google Scholar
Bohren, C.F., 1986. J. Atmos. Sci. 43, 468.Google Scholar
Bohren, C.F., and Battan, L.J., 1980. J. Atmos. Sci. 37, 1821.Google Scholar
Bohren, C.F., and Huffman, D.R., 1983. Absorption and Scattering of Light by Small Particles, Wiley-Interscience, New York. (BH)Google Scholar
Bohren, C.F., and Nevitt, T.J., 1983. Appl. Opt. 22, 774.Google Scholar
Bregman, J.D., et al., 1987. Astron. Astrophys. 187, 616.Google Scholar
Brooke, T.Y., Knacke, R.F., and Joyce, R.R., 1987. Astron. Astrophys. 187, 621.Google Scholar
Bruggeman, D.A.G., 1935. Ann. Phys. (Leipzig) 24, 636.Google Scholar
Burns, J.A., Lamy, P.L., and Soter, S., 1979. Icarus 55, 1.Google Scholar
Campins, H., Decher, R., Telesco, C.M., and Lien, D.J., 1990. Icarus (submitted).Google Scholar
Campins, H., and Hanner, M., 1982. In Comets, ed. Wilkening, L.L., University of Arizona Press, Tucson, p. 341.CrossRefGoogle Scholar
Campins, H., Lien, D.J., Decher, R., Telesco, C.M., and Clifton, K.S., 1989. Icarus 80, 289.Google Scholar
Campins, H., and Ryan, E.V., 1989. Astrophys. J. 341, 1059.Google Scholar
Campins, H., Telesco, C.M., Decher, R., and Ramsey, B.B., 1987. Astron. Astrophys. 187, 601.Google Scholar
Campins, H., Walker, R.G., and Lien, D.J., 1990. Icarus (submitted).Google Scholar
Capps, C.D., and Hess, G.K., 1984. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E, CRDEC, Aberdeen, p. 139.Google Scholar
Coletti, A., 1984. Aerosol Sci. Tech. 3, 39.Google Scholar
Combes, M., Lecacheux, J., Encrenaz, T., Sicardy, B., and Zeau, Y., 1983. Icarus 56, 229.Google Scholar
Crifo, J.F., 1988a. Proc. Xth European Regional Astronomy Meeting of the IAU, Tchecoslovac Academy of Sciences.Google Scholar
Crifo, J.F., 1988b. Part. Part. Syst. Charact. 5, 38.Google Scholar
Deirmendjian, D., 1969. Electromagnetic Scattering on Spherical Polydispersions, Elsevier, New York.Google Scholar
Divine, N., et al., 1986. Space Sci. Rev. 43, 1.Google Scholar
Dollfus, A., 1989. Astron. Astrophys. 213, 469.Google Scholar
Dollfus, A., and Suchail, J.-L., 1987. Astron. Astrophys. 187, 669.Google Scholar
Dollfus, A., Bastien, P., LeBorgne, P., Levasseur-Regourd, J.-F., and Mukai, T., 1988. Astron. Astrophys. 206, 348.Google Scholar
Domingue, D., Hapke, B., Lockwood, W., and Thompson, D., 1989. B.A.A.S. 21, 984.Google Scholar
Draine, B.T., 1988. Astrophys. J. 333, 848.Google Scholar
Drolen, B.L., and Tien, C.L., 1987. J. Quant. Spectrosc. Radiat. Transfer 37, 433.Google Scholar
Eaton, N., 1984. Vistas in Astr., 27, 111.Google Scholar
Eaton, N., Scarrott, S.M., and Warren-Smith, R.F., 1988. In Infrared Observations of Comets Halley and Wilson and Properties of the Grains, ed. Hanner, M.S., NASA CP3004, p. 139.Google Scholar
Edoh, O., 1983. Ph.D. Thesis, University of Arizona, Tucson.Google Scholar
Egan, W.G., and Hilgeman, T.W., 1979. Optical Properties of Inhomogenous Materials. Applications to Geology, Astronomy, Chemistry, and Engineering, Academic Press, New York.Google Scholar
Emslie, A.G. and Aronson, J.R., 1973. Appl. Opt. 12, 2563.Google Scholar
Finson, M.L., and Probstein, R.F., 1968a. Astrophys. J. 154, 327.Google Scholar
Finson, M.L., and Probstein, R.F., 1968b. Astrophys. J. 154, 353.Google Scholar
Fraundorf, P., Brownlee, D.E., and Walker, R.M., 1982. In Comets, ed. Wilkening, L.L., University of Arizona Press, Tucson, p. 383.Google Scholar
Fulle, M., 1987. Astron. Astrophys. 171, 327.Google Scholar
Fulle, M., 1989. Astron. Astrophys. 217, 283.Google Scholar
Gallily, I., 1985. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E., CRDEC, Aberdeen, p. 115.Google Scholar
Gerber, H.E. and Hindeman, E.E., eds., 1980. Light Absorption by Aerosol Particles, Spectrum, Hampton.Google Scholar
Gillespie, J.B., and Goedecke, G.H., 1989. Appl. Opt. 28, 3985.Google Scholar
Glaccum, W., Moseley, S.H., Campins, H., and Loewenstein, R.F., 1987. Astron. Astrophys. 187, 635.Google Scholar
Goedecke, G.H., and O’Brien, S.G., 1988. Apl. Opt. 27, 2431.Google Scholar
Hanner, M. S., 1980. Solid Particles in the Solar System, eds. Halliday, I. and Mcintosh, B. D.Reidel, Dordrecht, p. 223.Google Scholar
Hanner, M.S., Giese, R.S., Weiss, K., and Zerull, R., 1981. Astron. Astrophys. 104, 42.Google Scholar
Hanner, M.S., Tokunaga, A.T., Golisch, W.F., Griep, D.M., and Kaminski, C.D., 1987. Astron. Astrophys. 187, 653.Google Scholar
Hansen, J.E., and Travis, L.D., 1974. Space Sci. Rev. 16, 527.Google Scholar
Hartmann, W.K., and Cruikshank, D.P., 1984. Icarus 57, 55.Google Scholar
Heintzenberg, J., and Baker, M., 1976. Appl. Opt. 15, 1178.Google Scholar
Heintzenberg, J., and Welch, R.M., 1982. Appl. Opt. 21, 822.Google Scholar
Herter, T., Campins, H., and Gull, G.E., 1987. Astron. Astrophys. 187, 629.Google Scholar
Hodkinson, J.R., 1966. Appl. Optics 5, 839.Google Scholar
Holland, A.C., and Draper, J.S., 1967. Appl. Opt. 6, 511.Google Scholar
Holland, A. C., and Gagne, G., 1970. Appl. Opt. 9, 1113.Google Scholar
Huffman, D.R., 1975. Astrophys. Space Sci., 34, 175.Google Scholar
Huffman, D.R., 1977. Adv. in Physics, 26, 129.Google Scholar
Huffman, D.R., 1989. In Optical Effects Associated with Small Particles, eds. Barber, P.W. and Chang, R.K., World Scientific, New Jersey, p. 279.Google Scholar
Huffman, D.R., and Stapp, J.L., 1973. IAU Symp. 52 Interstellar Dust and Related Topics, p. 297.Google Scholar
Hunter, W.R., 1985. In Handbook of Optical Constants of Solids, ed. Palik, E.D., Academic Press, New York, p. 69.Google Scholar
Iskander, M.F., Chen, H.Y., and Penner, J.E., 1989. Appl. Opt. 28, 3083.Google Scholar
Iskander, M.F., Lakhtakia, A., and Durney, C.H., 1983. IEEE Trans. Antennas Propag. AP-31, 317.Google Scholar
Isobe, S., Saito, K., Tomita, K., and Maehara, H., 1978. Publ. Ast. Soc. Japan 30, 687.Google Scholar
Jensen, B., 1985. In Handbook of Optical Constants of Solids, ed. Palik, E.D., Academic Press, New York, p. 169.Google Scholar
Jewitt, D., and Meech, K., 1986. Astrophys. J. 310, 937.Google Scholar
Kattawar, G.W., and Humphreys, T.J., 1980. In Light Scattering by Irregularly Shaped Particles, ed. Schuerman, D., Plenum, New York, p. 177.Google Scholar
Kennedy, I.M., and Harris, S.J., 1989. J. Colloid, Interface Sci. 130, 489.Google Scholar
Kerker, M., 1969. The Scattering of Light and Other Electromagnetic Radiation, Academic Press, New York.Google Scholar
Kerker, M., Schemer, P., and Cooke, D.D., 1978. J. Opt. Soc. Am. 68, 135.Google Scholar
Khare, B.N., Sagan, C., Arakawa, E.T., Suits, F., Callcott, T.A., and Williams, M.W., 1984. Icarus 60, 127.Google Scholar
Khare, B.N., Sagan, C., Thompson, W.R., Arakawa, E.T., and Votaw, P., 1987. J. Geophys. Res. 92, 15,067.Google Scholar
Kikuchi, S., Mikami, Y., Mukai, T., Mukai, S., and Hough, J.H., 1987. Astron. Astrophys. 187, 689.Google Scholar
Kimura, H., and Liu, C.-R., 1977. Chin. Astr. 1, 235.Google Scholar
Koike, C., Hasegawa, H., Asada, N., and Komatuzaki, T., 1989. Mon. Not. R. Astr. Soc. 239, 127.Google Scholar
Krishna Swamy, K.S., Sanford, S.A., Allamandola, L.J., Witteborn, F.C., and Bregman, J.D., 1988. Icarus, 75, 351.Google Scholar
Lamy, P.L., 1974. Astron. Astrophys. 35, 197.Google Scholar
Lamy, P. 1988. Infrared Observations of Comets Halley and Wilson and Properties of the Grains, ed. Hanner, M.S., NASA CP3004, p. 29.Google Scholar
Lamy, P.L., and Perrin, J., 1988. Icarus 76, 100.Google Scholar
Lien, D.J., 1990. Astrophys. J. 355, 680.Google Scholar
Lien, D.J., and Hanner, M.S., 1989. B.A.A.S. 21, 940.Google Scholar
Mandelbrot, B.B., 1975. Les Objets Fractals: Forme et Dimension, Flammarion, Paris.Google Scholar
Mandelbrot, B.B., 1977. Fractals: Form, Chance, and Dimension, W.H. Freeman, San Francisco.Google Scholar
Mandelbrot, B.B., 1982. The Fractal Geometry of Nature, W.H Freeman, New York.Google Scholar
Martin, J.E., and Hurd, A.J., 1987. J. Appl. Cryst., 20, 61.Google Scholar
Maxwell-Garnett, J.C., 1904. Phil. Trans. R. Soc. A203, 385.Google Scholar
McDonnell, J.A.M., et al., 1987. Astron. Astrophys. 187, 719.Google Scholar
Meakin, P., 1988. Adv. Colloid and Interface Science, 28, 249.Google Scholar
Meakin, P., and Julien, R., 1985. J. Physique. 46, 1543.Google Scholar
Meakin, P., and Julien, R., 1988. J. Chem Phys. 89, 246 Google Scholar
Meech, K., 1988. Infrared Observations of Comets Halley and Wilson and Properties of the Grains, ed. Hanner, M.S., NASA CP3004, p. 172.Google Scholar
Meech, K., and Jewitt, D., 1987. Astron. Astrophys. 187, 585.Google Scholar
Mors, P.M., Botet, R., and Julien, R., 1987. J. Phys A. 20, L975.Google Scholar
Mugnai, A., and Wiscombe, W.J., 1980. J. Atmos. Sci. 37, 1291.Google Scholar
Mugnai, A., and Wiscombe, W.J., 1989. Appl. Opt. 28, 3061.Google Scholar
Mukai, T., 1977. Astrophys. Space Sci. 51, 165.Google Scholar
Mukai, T., 1986. Astron. Astrophys. 153, 213.Google Scholar
Mukai, T., Fechtig, H., Grun, E., Giese, R.H., and Mukai, S., 1986. Astron. Astrophys. 167, 364.Google Scholar
Mukai, T., and Koike, C., 1989. Preprint.Google Scholar
Mukai, T., Mukai, S., and Kukuchi, A., 1987. Astron. Astrophys. 187, 650.Google Scholar
Myers, R.V., 1985. Icarus 63, 206.Google Scholar
Ney, E.P., 1982. In Comets, ed. Wilkening, L.L., University of Arizona Press, Tucson, p. 323.Google Scholar
Ney, E.P., and Merrill, K.M., 1976. Science 194, 1051.Google Scholar
Nussenzveig, H.M., and Wiscombe, W.J., 1980. Phys. Rev. Letters 45, 1490.Google Scholar
Ostro, S.J., 1987. Astron. Astrophys. 176, 358.Google Scholar
Palik, E.D., ed. 1985. Handbook of Optical Constants of Solids, Academic Press, New York.Google Scholar
Perrin, J.M., and Chiappetta, P., 1985. Optica Acta 32, 907.Google Scholar
Perrin, J.M., and Lamy, P.L., 1986. Optica Acta 33, 1001.Google Scholar
Pollack, J.B., and Cuzzi, J.N., 1980. J. Atmos. Sci. 37, 868.Google Scholar
Potter, R.F., 1985. In Handbook of Optical Constants of Solids, ed. Palik, E.D., Academic Press, New York, p. 11.Google Scholar
Purcell, E.M., and Pennypacker, C.R., 1973. Astrophys. J. 186, 705.Google Scholar
Querry, M., 1984. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E, CRDEC, Aberdeen, p. 147.Google Scholar
Querry, M., 1985. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E, CRDEC, Aberdeen, p. 145.Google Scholar
Querry, M., 1986. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E, CRDEC, Aberdeen, p. 163.Google Scholar
Remillard, R.P., and Jewitt, D.C., 1985. Icarus 64, 27.Google Scholar
Schleusner, S.A., Lindberg, J.D., and White, K.O., 1975. Appl. Opt. 15, 2564.Google Scholar
Schleicher, D., Millis, R.L., Osip, D.J., A’Hearn, M.F., and Birch, P.V., 1989. B.A.A.S. 21, 936.Google Scholar
Schuerman, D., ed., 1980. Light Scattering by Irregularly Shaped Particles, Plenum, New York.Google Scholar
Schuerman, D., Wang, R., Gustafson, B., and Schaefer, R., 1981. Appl. Opt. 20, 4039.Google Scholar
Sekanina, Z. and Farrell, J.A., 1980. Astron. J. 85, 1538.Google Scholar
Sekanina, Z., Larson, S.M., Emerson, G., Helin, E.F., and Schmidt, R.E., 1987. Astron. Astrophys. 187, 645.Google Scholar
Sekanina, Z., and Miller, F.D., 1973. Science 179, 565.Google Scholar
Sekanina, Z., and Schuster, A.E., 1978a. Astron. Astrophys. 65, 29.Google Scholar
Sekanina, Z., and Schuster, A.E., 1978b. Astron. Astrophys. 68, 429.Google Scholar
Singham, S.B., and Bohren, C.F., 1989. Appl. Opt. 28, 517.Google Scholar
Smith, D.Y., 1985. In Handbook of Optical Constants of Solids, ed. Palik, E.D., Academic Press, p. 35.Google Scholar
Sood, A.K., 1987. Hyperfine Int. 37, 365.Google Scholar
Spitzer, W.G. and Kleinman, D.A., 1961. Phys. Rev. 121, 1324.Google Scholar
Steyer, T.R., 1974. Ph.D. Thesis, University of Arizona, Tucson.Google Scholar
Stroud, D. and Pan, F.P., 1978. Phys. Rev. B17, 1602.Google Scholar
Sykes, M., Lien, D.J., and Walker, R.G., 1989. Icarus, submitted.Google Scholar
Telesco, C.M., Decher, R., Baugher, C., Campins, H., Mozurkewich, D., Thronson, A., Cruikshank, D.D., Hammel, H.B., Larson, S., and Sekanina, Z., 1986. Astrophys. J. (Letters) 310, L61.Google Scholar
Tence, M., Chevalier, J.P., and Julien, R., 1986. J. Physique 47, 1989.Google Scholar
Toon, O.B., Pollack, J.B., and Khare, B.N., 1976. J. Geophys. Res. 81, 5733.Google Scholar
Ungat, A., Grehan, G., and Gouesbat, G., 1981. Appl. Opt. 20, 2911.Google Scholar
van de Hulst, H.C., 1957. Light Scattering by Small Particles, Dover, New York.Google Scholar
van de Hulst, H.C., 1980. Multiple Light Scattering, Vols. 1 and 2, Academic, New York.Google Scholar
Voltz, F.E., 1972. Appl. Opt. 11, 755.Google Scholar
Walker, R.G., Aumann, H.H., Davies, J., Green, S., de Jong, T., Houck, J.R., and Soifer, B.T., 1984. Astrophys. J. (Letters) 278, L11.Google Scholar
Wang, R.T., 1980. In Proceedings of the 1984 CSL Conference on Obscuration and Aerosol Research, ed. Kohl, R.E, CRDEC, Aberdeen, p. 111.Google Scholar
Ward, L., 1988. The Optical Constants of Bulk Materials and Films, Adam Hilger, Philedelphia.Google Scholar
Warren, S.G., 1984. Appl. Opt. 23, 1206.Google Scholar
Warren, S.G., 1986. Appl. Opt. 25, 2650.Google Scholar
Waterman, P.C., 1965. Proc. IEEE, 53, 805.Google Scholar
Weiss-Wrana, K, 1983. Astron. Astrophys. 126, 240.Google Scholar
Werby, M.F., and Chin-Bing, S.A., 1985. Comp. Math. With Appl. 11, 717.Google Scholar
West, R.A., Orton, G.S., Draine, B.T., and Hubbard, E.A., 1989. Icarus 80, 220.Google Scholar
Wiscombe, W.J., and Mugnai, A., 1986. NASA Ref Publ. 1157, NASA/GSFC, Greenebelt.Google Scholar
Wright, E.L., 1989. Preprint.Google Scholar
Yeh, C., 1964. Phys. Rev. 135, A1193.Google Scholar
Yeh, C., and Mei, K.K., 1980. In Light Scattering by Irregularly Shaped Particles, ed. Schuerman, D., Plenum, New York, p. 201.Google Scholar
Zerull, R.H., 1976. Beit. Phys. Atmos. 49, 168.Google Scholar