Abstract
Silicates are one of the principal components present in Solar System objects.Silicates evolve in space modifying their physical properties according to theastronomical environments they go through. To characterise the nature of TNOsin the framework of the formation and evolution of the Solar System, experimentson structural transitions of silicates have been performed in the laboratoryto simulate some of the processing suffered by the dust. The infrared spectralproperties of possible silicate candidates thought to be present in TNOs have beenstudied. The results of thermal annealing of amorphous silicates and amorphisationof crystalline forsterite (pure-Mg olivine) by ion irradiation are presented. Theobservable properties of TNOs surfaces are inferred.
Article PDF
Similar content being viewed by others
References
Baratta, G. A., Palumbo, M. E., and Strazzulla, G.: 2000, ‘Laboratory and Astronomical IR Spectra: An Experimental Clue for Their Comparison’Astronomy and Astrophysics 357, 1045–1050.
Bockelée-Morvan, D., Gautier, D., Hersant, F., Hure, J. M., and Robert, F.: 2002, ‘Turbulent Radial Mixing in the Solar Nebula as the Source of Crystalline Silicates in Comets’ Astronomy and Astrophysics, 384, 1107–1118.
Brucato, J. R., Colangeli, L., Mennella, V., Palumbo, P., and Bussoletti, E.: 1999, ‘Mid-Infrared Spectral Evolution of Thermally Annealed Amorphous Pyroxene’ Astronomy and Astrophysics 348, 1012–1019.
Brucato, J. R., Mennella, V., Colangeli, L., Rotundi A., and Palumbo, P.: 2002, ‘Production and Processing of Silicates in Laboratory and in Space’ Planetary and Space Science 50, 829–837.
Brucato, J. R., Strazzulla, G., Baratta, G. A., and Colangeli, L.: 2004, ‘Forsterite Amorphysation by Ion Irradiation: Monitoring by Infrared Spectroscopy’Astronomy and Astrophysics 413, 395–401.
Campins, H. and Ryan, E.: 1989, ‘The Identification of Crystalline Olivine in Cometary Silicates’ Astrophysical Journal 341, 1059–1066.
Cooper, J. F., Christian, E. R., and Johnson, R. E.: 1998, ‘Heliospheric Cosmic Ray Irradiation of Kuiper Belt Comets’ Advances Space Research 21(11), 1611–1614.
Crovisier, J., Leech, K., Bockelée-Morvan, D. et al.: 1997, ‘The Spectrum of Comet Hale–Bopp (C/1995 01) Observed with the Infrared Space Observatory at 2.9 AU from the Sun’ Science 275, 1904–1907.
Demyk, K., Jones, A. P., Dartois, E., Cox, P., and d’Hendecourt, L.: 1999, ‘The Chemical Composition of the Silicate Dust around RAFGL7009S and IRAS 19110+1045’Astronomy and Astrophysics 349, 267–275.
Fabian, D., Jäger, C., Henning, Th., Dorschner, J., and Mutschke, H.: 2000, ‘Steps Toward Interstellar Silicate Mineralogy. V. Thermal Evolution of Amorphous Magnesium Silicates and Silica’Astronomy and Astrophysics 364, 282–292.
Hallenbeck, S. L., Nuth, J. A., and Daukantas, P. L.: 1998, ‘Mid-Infrared Spectral Evolution of Amorphous Magnesium Silicate Smokes Annealed in Vacuum: Comparison to Cometary Spectra’ Icarus 131, 198–209.
Hanner, M. S., Lynch, D. K., and Russell, R. W.: 1994a, ‘The 8–13 Micron Spectra of Comets and the Composition of Silicate Grains’Astrophysical Journal 425, 274–285.
Hanner, M. S., Hackwell, J. A., Russell, R. W., and Lynch, D. K.: 1994b, ‘Silicate Emission Feature in the Spectrum of Comet Mueller 1993a’ Icarus 112, 490–495.
Harker, D. E., Wooden, D. H., Woodward, C. E., and Lisse, C. M.: 2002, ‘Grain Properties of Comet C/1995 O1 (Hale-Bopp)’ Astrophysical Journal 580, 579–597.
Harker, D. E. and Desch, S. J.: 2002, ‘Annealing of Silicate Dust by Nebular Shocks at 10 AU’ Astrophysical Journal 56, L109–L112.
Li, A. and Draine, B. T.: 2001, ‘On Ultrasmall Silicate Grains in the Diffuse Interstellar Medium’ Astrophysical Journal 550, L213–L217.
Nuth, J. A., Hill, H. G. M., Kletetschka, G.: 2000, ‘Determining the Ages of Comets from the Fraction of Crystalline Dust’ Nature 406, 275–276.
Rietmeijer, F. J. M., Nuth III, J. A., and Karner, J. M.: 1999, ‘Metastable Eutectic Condensation in a Mg-Fe-SiO-H2-O2 Vapor: Analogs to Circumstellar Dust’Astrophysical Journal 527, 395–404.
Strazzulla, G. and Johnson, R. E.: 1991, ‘Irradiation Effects on Comets and Cometary Debris’ in R. Newburn, Jr., M. Neugebauer and J. Rahe (eds.), In Comets in the Post-Halley Era, Kluwer, Dordrecht, pp. 243–275.
Strazzulla, G., Baratta, G. A., Palumbo, M. E., and Satorre, M. A.: 2000, ‘Ion Implantation in Ices’ Nuclear Instruments and Methods B166–167, 13–18.
Strazzulla, G., Baratta, G. A., and Palumbo, M. E.: 2001, ‘Vibrational Spectroscopy of Ion-Irradiated Ices’ Spectrochimica Acta 57, 825–842.
Strazzulla, G., Baratta, G. A., Domingo, M., and Satorre, M. A.: 2002, ‘Ion Irradiation of Frozen C2Hn (n = 2, 4, 6)’ Nuclear Instruments and Methods B191,714–717.
Wooden, D.H., Harker, D. E., and Woodward, C. E. et al.: 1999, ‘Silicate Mineralogy of the Dust in the Inner Coma of Comet C/1995 01 (Hale–Bopp) Pre-and Post-Perihelion’ Astrophysical Journal 517, 1034–1058.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Brucato, J.R., Strazzulla, G., Baratta, G. et al. Laboratory Studies on Silicates Relevant for the Physics of TNOs. Earth, Moon, and Planets 92, 307–314 (2003). https://doi.org/10.1023/B:MOON.0000031947.25811.4a
Issue Date:
DOI: https://doi.org/10.1023/B:MOON.0000031947.25811.4a