Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-25T04:27:13.976Z Has data issue: false hasContentIssue false
  • English
  • Français

H2 formation on Mg-rich amorphous silicates

Published online by Cambridge University Press:  12 October 2020

Vito Mennella Open the ORCID record for Vito Mennella [Opens in a new window]  and
Tushar Suhasaria Open the ORCID record for Tushar Suhasaria [Opens in a new window]
Vito Mennella
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy email: [email protected]
Tushar Suhasaria
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy email: [email protected]
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.

We present the results of an experimental study on the interaction of D atoms with Mg-rich amorphous silicates. The effects of D irradiation have been analyzed by infrared spectroscopy. The results indicate that HD forms by abstraction of hydrogen atoms chemisorbed in the hydroxyl groups of silicate grains. The formation process occurs for grain and atom temperatures relevant to photodissociation regions.

Keywords

Astrochemistrymolecular processesmethods: laboratorytechniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 109 - 113
Copyright
© International Astronomical Union 2020

References

Cazaux, S. & Tielens, A. G. G. M. 2004, ApJ, 604, 222 CrossRefGoogle Scholar
Dyar, M. D., Hibbitts, C. A., & Orlando, T. M. 2010, Icarus, 208, 425 CrossRefGoogle Scholar
Gail, H. P. & Sedlmayr, E. in: T. W. Hartquist & D. A. Williams (eds.) 1998, The molecular astrophysics of stars and galaxies, 285Google Scholar
Hornekær, L., Baurichter, A., Petrunin, V. V., Field, D., & Luntz, A. C. 2003, Science, 302, 1943 CrossRefGoogle Scholar
Iler, R. K. 1979, The chemistry of silica (New York: John Wiley & Sons), 622Google Scholar
Jäger, C., Dorschner, J., Mutschke, H., Posch, T., & Henning, T. 2003, A&A, 408, 193 Google Scholar
Kemper, F., Vriend, W. J., & Tielens, A. G. G. M. 2004, ApJ, 609, 826 CrossRefGoogle Scholar
Manicò, G., Ragunì, G., Pirronello, V., Roser, J. E., & Vidali, G. 2001, ApJL, 548, L253 CrossRefGoogle Scholar
Mennella, V. 2006, ApJL, 647, L49 CrossRefGoogle Scholar
Mennella, V. 2008, ApJL, 684, L25 CrossRefGoogle Scholar
Mennella, V., Hornekæ r, L., Thrower, J. D., & Accolla, M. 2012, ApJL, 745, L2 CrossRefGoogle Scholar
Molster, F. J., Waters, L. B. F. M., & Tielens, A. G. G. M. 2012, A&A, 382, 222 Google Scholar
Pirronello, V., Biham, O., Liu, C., Shen, L., & Vidali, G. 1997, ApJ, 483, L131 CrossRefGoogle Scholar
Schaible, M. J. & Baragiola, R. A. 2014, JGR: Planets, 119, 2017 Google Scholar
Shinoda, K., Yamakata, M., Nanba, T., & Baragiola, R. A. 2002, Phys. Chem. Miner., 29, 396 CrossRefGoogle Scholar
Thrower, J. D., Jørgensen, B., Friis, E. E., Baouche, S., Mennella, V & Hornekær, L. 2012, ApJ, 752, 3 CrossRefGoogle Scholar
Vidali, G., Roser, J., Manicò, G., Pirronello, V., Perets, H. B., & Biham, O. 2005, J. Phys. Conf. Ser., 6, 36 CrossRefGoogle Scholar
Wakelam, V., Bron, E., Cazaux, S., Dulieu, F., Gry, C., Guillard, P., Habart, E., Hornekær, L., Morisset, S., Nyman, G., Pirronello, V., Price, S. D., Valdivia, V., Vidali, G., & Watanabe, N. 2017, Mol. Astrophys., 9, 1 CrossRefGoogle Scholar