Hostname: page-component-8448b6f56d-wq2xx Total loading time: 0 Render date: 2024-04-23T23:07:32.368Z Has data issue: false hasContentIssue false
  • English
  • Français

Simulation of organic interstellar dust in the laboratory

Published online by Cambridge University Press:  01 February 2008

Walt W. Duley
Walt W. Duley*
Affiliation:
Department of Physics and Astronomy, University of Waterloo, 200 University Ave. West, Waterloo, Ontario, CanadaN2L3G1 email: wwduley@uwaterloo.ca
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

New techniques for the generation and analysis of carbon nanoparticles (CNPs) have been developed and have resulted in the production of CNP samples whose infrared spectral properties are essentially identical to those observed in interstellar absorption and emission. These particles are of mixed aromatic/aliphatic composition. Spectra of CNPs containing 102–104 atoms will be discussed in relation to spectra of interstellar materials. We find that infrared line widths in these samples are typically 10–30 cm−1, but can be as small as 2 cm−1. Simulation of the 3.28 μm feature is shown to yield important new insight into the nature of interstellar CNPs.

Keywords

Infrared: ISMISM: moleculesISM: lines and bands(stars:) circumstellar matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S251: Organic Matter in Space , February 2008 , pp. 383 - 392
Copyright
Copyright © International Astronomical Union 2008

References

Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. 1989, ApJS, 71, 733CrossRefGoogle Scholar
Dartois, E. 2007, A&A, 463, 635Google Scholar
Dieringer, J. A. 2006, Faraday Disc., 132, 9CrossRefGoogle Scholar
Duley, W. W. 2000, ApJ, 528, 841CrossRefGoogle Scholar
Duley, W. W. & Williams, D. A. 1981, MNRAS, 196, 269CrossRefGoogle Scholar
Duley, W. W. & Williams, D. A. 1983, MNRAS, 205, 67PCrossRefGoogle Scholar
Duley, W. W., et al. 2005, ApJ, 626, 923CrossRefGoogle Scholar
Etchegoin, P., et al. 2003, Chem. Phys. Lett., 367, 223CrossRefGoogle Scholar
Ferrari, A. C. & Robertson, J. 2000, Phys. Rev. B, 61, 14095CrossRefGoogle Scholar
Geballe, T. R. 1997, in: Pendleton, Y. J. & Tielens, A. G. G. M. (eds.), From Stardust to Planetisimals, ASP Conf. Ser. 122, (San Francisco: ASP), p. 109Google Scholar
Grishko, V. & Duley, W. W. 2000, ApJ (Letters), 543, L85CrossRefGoogle Scholar
Hu, A., Alkhesho, I., Duley, W. W., & Zhou, H. 2006, J. Appl. Phys., 100, 084319CrossRefGoogle Scholar
Hu, A., Alkhesho, I., Zhou, H., & Duley, W. W. 2007a, Diamond and Related Materials, 16, 149CrossRefGoogle Scholar
Hu, A. & Duley, W. W. 2007, ApJ, 672, L81CrossRefGoogle Scholar
Hu, A. & Duley, W. W. 2008, ApJ, in pressGoogle Scholar
Hu, A., Lu, Q-B., Duley, W. W., & Rybachuk, M. 2007b, J. Chem. Phys., 126, 154705CrossRefGoogle Scholar
Hudgins, D. M. & Allamandola, L. J. 1999, 513, L69CrossRefGoogle Scholar
Hudgins, D. M. & Allamandola, L. J. 2004, in: Witt, A. N., Clayton, G. C., & Draine, B. T. (eds.), ASP Conf. Ser. 309, Astrophysics of Dust, (San Francisco: ASP), p. 665Google Scholar
Joblin, C., Boissel, P., Leger, A., d'Hendecourt, L., & Defourneau, D. 1995, A&A, 299, 835Google Scholar
Leger, A. & Puget, J. L. 1984, A&A (Letters), 137, L5Google Scholar
Mapelli, C., Castiglione, C., Zerbi, G. & Mullen, K. 1999, Phys. Rev. B, 60, 12710CrossRefGoogle Scholar
Moskovits, M. 1985, Rev. Mod. Phys., 57, 78CrossRefGoogle Scholar
Peeters, E., et al. 2002, A&A, 390, 1089Google Scholar
Peeters, E., Mattioda, A. L., Hudgins, D. M. & Allamandola, L. J. 2004, ApJ (Letters), 617, L65CrossRefGoogle Scholar
Rouan, D., Le Coupanec, P., Lacombe, F., Tiphene, D., Gallais, P., Leger, A., & Boulanger, F. 1999, in The Universe as seen by ISO, ESA, SP-427, p. 743Google Scholar
Scott, A., Duley, W. W., & Jahani, H. R. 1997, ApJ (Letters), 490, L175CrossRefGoogle Scholar
Sellgren, K. 2001, Spectrochimica Acta, A57, 627CrossRefGoogle Scholar
Sloan, G. C., et al. 2005, ApJ, 632, 956CrossRefGoogle Scholar
Tokunaga, A. T. 1996, in: Onaka, H., Matsumoto, T. & Roelig, T. L. (eds.), Diffuse Infrared Radiation and the IRTS, ASP Conf. Ser. 124, (San Francisco:ASP), p. 149Google Scholar
van Diedenhoven, et al. , 2004, ApJ, 611, 928CrossRefGoogle Scholar
Werner, M. W., et al. 2004, ApJS, 154, 309CrossRefGoogle Scholar