Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-25T19:44:37.677Z Has data issue: false hasContentIssue false
  • English
  • Français

Collisional rate coefficients for astrophysics

Published online by Cambridge University Press:  19 March 2024

Alexandre Faure Open the ORCID record for Alexandre Faure [Opens in a new window]
Alexandre Faure*
Affiliation:
Univ. Grenoble Alpes, CNRS, IPAG F-38000 Grenoble,France
*
email: alexandre.faure@univ-grenoble-alpes.fr
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.

In the interstellar medium, inelastic collisions are so rare that they cannot maintain a local thermodynamical equilibrium (LTE). Atomic and molecular populations therefore do not follow a simple Boltzmann distribution and non-LTE spectra are the rule rather than the exception. In such conditions, accurate state-to-state collisional data are crucial for a quantitative interpretation of spectra. In recent years, considerable progress has been made in quantum calculations of inelastic cross sections for a variety of targets, types of transitions and projectiles. For a few benchmark species, detailed comparisons between theory and experiment were also carried out at the state-to-state level and in the quantum regime. In this article, we highlight such comparisons for three important molecules: CO, H2O and CH+. We also describe current computational efforts to extend these advances to ever larger targets, new transition types, and new environments (e.g. stellar envelopes or cometary atmospheres).

Keywords

Molecular datamolecular processesscattering
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S371: Honoring Charlotte Moore Sitterly: Astronomical Spectroscopy in the 21st Century , August 2022 , pp. 123 - 132
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Alexander, M.H. and Dagdigian, P.J. : 1985, Journal of Chemical Physics 83, 2191. doi: 10.1063/1.449311.CrossRefGoogle Scholar
Arthurs, A.M. and Dalgarno, A.: 1960, Proceedings of the Royal Society of London Series A 256, 540. doi: 10.1098/rspa.1960.0125.CrossRefGoogle Scholar
Ayouz, M., Faure, A., Tennyson, J., Tudorovskaya, M., and Kokoouline, V.: 2021, Atoms 9, 62. doi: 10.3390/atoms9030062.CrossRefGoogle Scholar
Ba, Y.-A., Dubernet, M.-L., Moreau, N., and Zwölf, C.M.: 2020, Atoms 8, 69. doi: 10.3390/atoms8040069.CrossRefGoogle Scholar
Belyaev, A.K., Voronov, Y.V., Mitrushchenkov, A., Guitou, M., and Feautrier, N.: 2019, Monthly Notices of the Royal Astronomical Society 487, 5097. doi: 10.1093/mnras/stz1511.CrossRefGoogle Scholar
Bergeat, A., Faure, A., Morales, S.B., Moudens, A., and Naulin, C.: 2020a, Journal of Physical Chemistry A 124, 259. doi: 10.1021/acs.jpca.9b04753.CrossRefGoogle Scholar
Bergeat, A., Morales, S.B., Naulin, C., Wiesenfeld, L., and Faure, A.: 2020b, Physical Review Letters 125, 143402. doi: 10.1103/PhysRevLett.125.143402.CrossRefGoogle Scholar
Chefdeville, S., Stoecklin, T., Bergeat, A., Hickson, K.M., Naulin, C., and Costes, M.: 2012, Physical Review Letters 109, 023201. doi: 10.1103/PhysRevLett.109.023201.CrossRefGoogle Scholar
Chefdeville, S., Stoecklin, T., Naulin, C., Jankowski, P., Szalewicz, K., Faure, A., and, …: 2015, The Astrophysical Journal 799, L9. doi: 10.1088/2041-8205/799/1/L9.CrossRefGoogle Scholar
Dagdigian, P.J.: 2017, Journal of Chemical Physics 146, 224308. doi: 10.1063/1.4984940.CrossRefGoogle Scholar
Dagdigian, P.J.: 2022, Monthly Notices of the Royal Astronomical Society 514, 2214. doi: 10.1093/mnras/stac1430.CrossRefGoogle Scholar
Dubernet, M.L. and Quintas-Sánchez, E.: 2019, Molecular Astrophysics 16, 100046. doi: 10.1016/j.molap.2019.100046.CrossRefGoogle Scholar
Endres, E.S., Ndengué, S., Lakhmanskaya, O., Lee, S., Gianturco, F.A., Dawes, R., and, …: 2021, Physical Review A 103, 052807. doi: 10.1103/PhysRevA.103.052807.CrossRefGoogle Scholar
Faure, A., Halvick, P., Stoecklin, T., Honvault, P., Epée Epée, M.D., Mezei, J.Z., and, …: 2017, Monthly Notices of the Royal Astronomical Society 469, 612. doi: 10.1093/mnras/stx892.CrossRefGoogle Scholar
Faure, A., Dagdigian, P.J., Rist, C., Dawes, R., Quintas-Sánchez, E., Lique, F., and, …: 2019, ACS Earth and Space Chemistry 3, 964. doi: 10.1021/acsearthspacechem.9b00069.CrossRefGoogle Scholar
Faure, A., Lique, F., and Loreau, J.: 2020, Monthly Notices of the Royal Astronomical Society 493, 776. doi: 10.1093/mnras/staa242.CrossRefGoogle Scholar
Flower, D.R. and Launay, J.M.: 1985, Monthly Notices of the Royal Astronomical Society 214, 271. doi: 10.1093/mnras/214.3.271.CrossRefGoogle Scholar
Flower, D.R.: 2001, Journal of Physics B Atomic Molecular Physics 34, 2731. doi: 10.1088/0953-4075/34/13/315.CrossRefGoogle Scholar
Godard, B. and Cernicharo, J.: 2013, Astronomy and Astrophysics 550, A8. doi: 10.1051/0004-6361/201220151.CrossRefGoogle Scholar
Godard, B., Pineau Des Forêts, G., Hennebelle, P., Bellomi, E., and Valdivia, V.: 2022, Astronomy & Astrophysics, in press Google Scholar
González-Lezana, T., Hily-Blant, P., and Faure, A.: 2021, Journal of Chemical Physics 154, 054310. doi: 10.1063/5.0039629.CrossRefGoogle Scholar
Green, S. and Thaddeus, P.: 1976, The Astrophysical Journal 205, 766. doi: 10.1086/154333.CrossRefGoogle Scholar
Hamilton, J.R., Faure, A., and Tennyson, J.: 2016, Monthly Notices of the Royal Astronomical Society 455, 3281. doi: 10.1093/mnras/stv2429.CrossRefGoogle Scholar
Kálosi, Á., Grieser, M., von Hahn, R., Hechtfischer, U., Krantz, C., Kreckel, H., and, …: 2022, Physical Review Letters 128, 183402. doi: 10.1103/PhysRevLett.128.183402.CrossRefGoogle Scholar
Konings, M., Desrousseaux, B., Lique, F., and Loreau, J.: 2021, Journal of Chemical Physics 155, 104302. doi: 10.1063/5.0062388.CrossRefGoogle Scholar
Labiad, H., Fournier, M., Mertens, L.A., Faure, A., Carty, D., Stoecklin, T., and, …: 2022, Physical Review A 105, L020802. doi: 10.1103/PhysRevA.105.L020802.CrossRefGoogle Scholar
Lique, F. and Faure, A.: 2019, Gas-Phase Chemistry in Space; From elementary particles to complex organic molecules, by Lique, François and Faure, Alexandre. ISBN: 978-0-7503-1426-8. IOP ebooks. Bristol, UK: IOP Publishing, 2019. doi: 10.1088/2514-3433/aae1b5.Google Scholar
Mandal, B., Joy, C., Semenov, A., and Babikov, D.: 2022, ACS Earth and Space Chemistry 6, 521. doi: 10.1021/acsearthspacechem.1c00418.Google Scholar
Mengel, M., de Lucia, F.C., and Herbst, E.: 2001, Canadian Journal of Physics 79, 589. doi: 10.1139/p01-010.CrossRefGoogle Scholar
Moore, C.E.: 1956, Smithsonian Contributions to Astrophysics 1, 13.Google Scholar
Rabli, D. and Flower, D.R.: 2011, Monthly Notices of the Royal Astronomical Society 411, 2093. doi: 10.1111/j.1365-2966.2010.17842.x.CrossRefGoogle Scholar
Schinke, R., Engel, V., Buck, U., Meyer, H., and Diercksen, G.H.F.: 1985, The Astrophysical Journal 299, 939. doi: 10.1086/163760.CrossRefGoogle Scholar
Shuai, Q., de Jongh, T., Besemer, M., van der Avoird, A., Groenenboom, G.C., and van de Meerakker, S.Y.T.: 2020, Journal of Chemical Physics 153, 244302. doi: 10.1063/5.0033488.CrossRefGoogle Scholar
Selim, T., van der Avoird, A., and Groenenboom, G.C.: 2022, Journal of Chemical Physics 157, 064105. doi: 10.1063/5.0102224.CrossRefGoogle Scholar
Stoecklin, T., Denis-Alpizar, O., Clergerie, A., Halvick, P., Faure, A., and Scribano, Y.: 2019, Journal of Physical Chemistry A 123, 5704. doi: 10.1021/acs.jpca.9b04052.Google Scholar
Toscano, J., Lewandowski, H.J., and Heazlewood, B.R.: 2020, Physical Chemistry Chemical Physics (Incorporating Faraday Transactions) 22, 9180. doi: 10.1039/D0CP00931H.CrossRefGoogle Scholar
van der Tak, F.F.S., Lique, F., Faure, A., Black, J.H., and van Dishoeck, E.F.: 2020, Atoms 8, 15. doi: 10.3390/atoms8020015.CrossRefGoogle Scholar
van Dishoeck, E.F., Herbst, E., and Neufeld, D.A.: 2013, Chemical Reviews 113, 9043. doi: 10.1021/cr4003177.CrossRefGoogle Scholar
Wernli, M., Valiron, P., Faure, A., Wiesenfeld, L., Jankowski, P., and Szalewicz, K.: 2006, Astronomy and Astrophysics 446, 367. doi: 10.1051/0004-6361:20053919.CrossRefGoogle Scholar
Wiesenfeld, L.: 2021, Journal of Chemical Physics 155, 071104. doi: 10.1063/5.0058755.Google Scholar
Yang, C.-H., Sarma, G., Ter Meulen, J.J., Parker, D.H., McBane, G.C., Wiesenfeld, L., and, …: 2010a, Journal of Chemical Physics 133, 131103. doi: 10.1063/1.3475517.CrossRefGoogle Scholar
Yang, B., Stancil, P.C., Balakrishnan, N., and Forrey, R.C.: 2010b, The Astrophysical Journal 718, 1062. doi: 10.1088/0004-637X/718/2/1062.CrossRefGoogle Scholar
Yang, B., Zhang, P., Wang, X., Stancil, P.C., Bowman, J.M., Balakrishnan, N., and, …: 2015, Nature Communications 6, 6629. doi: 10.1038/ncomms7629.CrossRefGoogle Scholar