Abstract
An important step in the characterisation of cosmic analogues is represented by the study and comparison of morphological, chemical and spectroscopical properties of “crystalline” and “amorphous” materials. In order to achieve this aim we have determined the mass extinction coefficient in the infrared region, between 2.5 and 200 µm, of Fayalite (Fe2SiO4) in the two forms. Amorphous materials were obtained by laser vaporisation of a crystalline target. We have studied the morphology of the grains, computed their dimensional distribution and average diameter and analysed the elemental composition, using a field emission Scanning Electron Microscope equipped with an Energy Dispersive X-ray detection system.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Wynn-Williams, C. G. and Becklin, E. E. (1974) Infrared emission from HII regions, Publications of the Astronomical Society of the Pacific 86, 5–25.
Roche, P. F. (1989) Spectroscopy of galaxies in the mid infrared, in ESA, Infrared Spectroscopy in Astronomy, pp. 447–453.
Merrill, K. M. and Stein, W. A. (1976) 2–14 µm M stellar spectrophotometry I. Stars of the conventional spectral sequence, Publications of the Astronomical Society of the Pacific 88, 285–293.
Merrill, K. M. and Stein, W. A. (1976) 2–14 µm M stellar spectrophotometry II. Stars from the 2µmM infrared sky survey, Publications of the Astronomical Society of the Pacific 88, 294–307.
Merrill, K. M. and Stein, W. A. (1976) 2–14 µm stellar spectrophotometry III. AFCRL sky survey objects, Publications of the Astronomical Society of the Pacific 88, 874–887.
Willner, S. P., Gillet, F. C., Heiter, 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 shells, Astrophysical Journal 253, 174–187
Olnon, F. M., Raimond, E., Neugebauer, G., van Duinen, R. J., Habing, H. J., Aumann, H. H., Beintema, D. A., Boggess, N., Borgman, J., Glegg, P. E., Gillett, F. C., Hauser, M. G., Houck, J. R., Jennings, R. E., de Jong, T., Low, F. J., Marsden, P. L., Pottasch, S. R., Soifer, B. T., Walker, R. G., Emerson, J. P., Rowan-Robinson, M., Wesselius, P. R., Baud, B., Beichman, C. A., Gautier, T. N., Harris, S., Miley, G. K. and Young, E. (1986), IRAS catalogues and atlases — Atlas of low-resolution spectra, Astronomy and Astrophysics Supplement Series 65, 607–1065.
Omont, A. (1993), Circumstellar matter: cool IRAS sources, in S. Kwok (eds.), Astronomical Infrared Spectroscopy: Future Observational Directions, ASP Conference Series, San Francisco, vol. 41, pp. 87–95.
Woolf, N. J. (1975), Circumstellar dust, in G. B. Field and A. G. W. Cameron (eds), The Dusty Universe, Neale Watson Academic Publications, Inc., New York, pp. 59–87.
Ney, E. P. (1974), Multiband photometry of Comets Kohoutek, Bennett, Bradfield, and Encke, Icarus 23, 551–560.
Krishna Swamy, K. S., Sandford, S. A., Allamandola, L. J., Witteborn, F. C. and Bregman, J. D. (1989), Infrared emission from comets, Astrophysical Journal 340, 537–549.
Hanner, M. S., Lynch, D. K. and Russell, R. W. (1994), The 8–13 micron spectra of comets and the composition of silicate grains, Astrophysical Journal 425, 274–285.
Lutz, D., Feuchtgruber, H., Genzel, R., Kunze, D., Rigopoulou, D., Spoon, H. W. W., Wright, C. M.; Egami, E., Katterloher, R.; Sturm, E. Wieprecht, E.; Sternberg, A., Moorwood, A. F. M. and de Graauw, T. (1996), SWS observations of the Galactic center, Astronomy and Astrophysics 315, L269–L272.
Crovisier, J.; Brooke, T. Y., Hanner, M. S.; Keller, H. U., Lamy, P. L.; Allien, B., Bockelée-Morvan, D., Jorda, L.; Leech, K. and Lellouch, E. (1996), The infrared spectrum of comet C/1995 O1 (Hale-Bopp) at 4.6 AU from the Sun, Astronomy and Astrophysics 315, L385–L388.
van der Hucht, K. A., Morris, P. W., Williams, P. M., Setia Gunawan, D. Y. A., Beintema, D. A., Boxhoorn, D. R., de Graauw, T., Heras, A., Kester, D. J. M., Ahuis, F., Leech, K. J., Roelfsema, P. R., Salama, A., Valentijn, E. A. and Vandenbussche, B. (1996), ISO-SWS spectrophotometry of galactic Wolf-Rayet stars: preliminary results, Astronomy and Astrophysics 315, L193–L196.
Gürtler, J., Henning, T., Kömpe, C., Pfau, W., Krätschmer, W. and Lemke, D. (1996), Detection of an absorption feature at the position of the 4.27 µm band of solid CO2, Astronomy and Astrophysics 315, L189–L192.
Waelkens, C., Waters, L. B. F. M., de Graauw, M. S., Huygen, E., Malfait, K., Plets, H., Vandenbussche, B., Beintema, D. A., Boxhoorn, D. R., Habing, H. J., Heras, A. M., Kester, D. J. M., Lahuis, F., Morris, P. W., Roelfsema, P. R., Salama, A., Siebenmorgen, R., Trams, N. R., van der Bliek, N. R., Valentijn, E. A. and Wesselius, P. R. (1996), SWS observations of young main-sequence stars with dusty circumstellar disks, Astronomy and Astrophysics 315, L245–L248.
Waters, L. B. F. M., Molster, F. J., de Jong, T., Beintema, D. A., Waelkens, C., Boogert, A. C. A., Boxhoorn, D. R., de Graauw, T., Drapatz, S., Feuchtgruber, H., Genzel, R., Helmich, F. P., Heras, A. M., Huygen, R., Izumiura, H., Justtanont, K., Kester, D. J. M., Kunze, D., Lahuis, F., Lamers, H. J. G. L. M., Leech, K. J., Loup, C., Lutz, D., Morris, P. W., Price, S. D., Roelfsema, P. R., Salama, A., Schaeidt, S. G., Tielens, A. G. G. M., Trams, N. R., Valentijn, E. A., Vandenbussche, B., van den Ancker, M. E., van Dishoeck, E. F., van Winckel, H., Wesselius, P. R. and Young, E. T. (1996), Mineralogy of oxygen-rich dust shells, Astronomy and Astrophysics 315, L361–L364.
Snow, Th. P. and Witt, A. N. (1996), Interstellar Depletions Updated: Where All the Atoms Went, Astrophysical Journal Letters 468, L65–L68.
Dorschner, J., Friedemann, G. and Gürtler, J (1978), Laboratory spectra of phyllosilicates and the interstellar 10-micrometer absorption band, Astronomische Nachrichten 299, 269–282.
Mathis, J. S., Rumpl, W. and Nordsieck, K. H. (1977), The size distribution of interstellar grains, Astrophysical Journal 217, 425433.
Stephens, J. R. and Kothari, B. K. (1978), Laboratory analogues to cosmic dust, The Moon and the Planets 19, 139–152.
Sankur, H. and Cheung, J. T. (1988), Formation of Dielectric and Semiconductor Thin Films by Laser-Assisted Evaporation, Applied Physics A 47, 271–284.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Ferrini, G., Rotundi, A., Colangeli, L., Mennella, V. (1999). Morphology, Composition and Mir-Fir Spectroscopy of Silicates of Astrophysical Interest. In: Greenberg, J.M., Li, A. (eds) Formation and Evolution of Solids in Space. NATO ASI Series, vol 523. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4806-1_19
Download citation
DOI: https://doi.org/10.1007/978-94-011-4806-1_19
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6018-9
Online ISBN: 978-94-011-4806-1
eBook Packages: Springer Book Archive