Abstract
Infrared observations of comets over the 2–4 Μm waveband are interpreted in terms of a model with varying contributions from bacterial-type and viral-type particles, and with small additional contributions arising from degraded organic molecules at grain surfaces.
Article PDF
References
Allen, D. A. and Wickramasinghe, D. T.: 1981, Nature 294, 239.
Allen, D. A. and Wicramasinghe, D. T.: 1987, Nature 329, 615.
Bass, F., Geballe, T. R., and Walther, D. M.: 1986, Astrophys. J. 311, L97.
Bussoletti, E., Barghesi, A., and Colaugeli, L.: 1986, Comet Nucleus Sample Return, ESA SP-249, p. 57.
Crifo, J. F.: 1987, Diversity and Similarity of Comets, ESA SP-278 (in press).
Danks, A., Encrenaz, T., Bouchet, P., Le Bertre, T., Chalabev, A., and Epchtein, N.: 1986, Explorations of Halley's Comet, ESA-SP-250, Proc. 20th ESLAB Symposium on the Exploration of Halley's Comet, p. 103.
Hoyle, F. and Wickramasinghe, N. C.: 1981, in C. Ponnamperuma (ed.), Comets and the Origin of Life, D. Reidel Publ. Co., Dordrecht, Holland.
Hoyle, F., Wickramasinghe, N. C., and Wallis, M. K.: 1985, Earth Moon Planets 33, 179.
Hoyle, F. and Wickramasinghe, N. C.: 1986, Living Comets, University College, Cardiff Press.
Kissel, J. and Krueger, F. R.: 1987, Nature 326, 755.
Kissel, J. et al.: 1986, Nature 321, 280.
Knacke, R. F., Brooke, T. Y., and Joyce, R. R.: 1986, Astrophys. J. 311, L49.
McDonnell, J. A. M., Kissel, J., Grun, E., Grard, R. J. L., Langevin, Y., Olearczyk, R. E., Perry, C. H., and Zarnecki, J. C.: 1986, Explorations of Halley's Comet, ESA SP-250 2, pp. 25–38.
Tokunaga, A. T., Nagata, T., and Smith, R. G.: Astron. Astrophys. (in press).
Tokunaga, A. T., Smith, R. G., Nagata, T., DePoy, Dl. L., and Sellgren, K.: 1986, Astrophys. J. 310, L45.
Vanýsek, V. and Wickramasinghe, N. C.: 1975, Astrophys. Space Sci. 33, L19.
Wallis, M. K., Rabilizirov, R., and Wickramasinghe, N. C.: 1986, Explorations of Halley's Comet, ESA SP-250 2, pp. 215–254.
Wickramasinghe, D. T., Hoyle, F., Wickramasinghe, N. C., and Al-Mufti, S.: 1986, Earth, Moon and Planets 36, 295.
Wickramasinghe, D. T. and Allen, D. A.: 1986, Nature 323, 44.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wickramasinghe, N.C., Wallis, M.K., Al-Mufti, S. et al. The organic nature of cometary grains. Earth Moon Planet 40, 101–108 (1988). https://doi.org/10.1007/BF00057948
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00057948