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Water in the interstellar media of galaxies

Published online by Cambridge University Press:  27 October 2016

Floris F. S. van der Tak
Floris F. S. van der Tak*
Affiliation:
SRON & Kapteyn Astronomical Institute, P.O. Box 900, 9700 AV Groningen, the Netherlands email: [email protected]
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Abstract

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This paper reviews recent observations of water in Galactic interstellar clouds and nearby galactic nuclei. Two results are highlighted: (1) Multi-line H2O mapping of the Orion Bar shows that the water chemistry in PDRs is driven by photodissociation and -desorption, unlike in star-forming regions. (2) High-resolution spectra of H2O and its ions toward 5 starburst / AGN systems reveal low ionization rates, unlike as found from higher-excitation lines. We conclude that the chemistry of water strongly depends on radiation environment, and that the ionization rates of interstellar clouds decrease by at least 10 between galactic nuclei and disks.

Keywords

galaxies: ISMISM: moleculesastrochemistry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 395 - 399
Copyright
Copyright © International Astronomical Union 2016 

References

Bacmann, A., Taquet, V., Faure, A., Kahane, C., & Ceccarelli, C. 2012, A&A, 541, L12 Google Scholar
Caselli, P., Keto, E., Bergin, E. A., et al. 2012, ApJ (Letters), 759, L37 Google Scholar
Choi, Y., van der Tak, F. F. S., Bergin, E. A., & Plume, R. 2014, A&A, 572, L10 Google Scholar
Giannetti, A., Wyrowski, F., Leurini, S., et al. 2015, A&A, 580, L7 Google Scholar
González-Alfonso, E., Fischer, J., Aalto, S., & Falstad, N. 2014, A&A, 567, A91 Google Scholar
González-Alfonso, E., Fischer, J., Graciá-Carpio, J., et al. 2012, A&A, 541, A4 Google Scholar
Goto, M., Geballe, T. R., Indriolo, N., et al. 2014, ApJ, 786, 96 CrossRefGoogle Scholar
Hollenbach, D., Kaufman, M. J., Bergin, E. A., & Melnick, G. J. 2009, ApJ, 690, 1497 Google Scholar
Hollenbach, D. J. & Tielens, A. G. G. M. 1997, ARAA, 35, 179 Google Scholar
Indriolo, N., Neufeld, D. A., Gerin, M., et al. 2015, ApJ, 800, 40 Google Scholar
Lis, D. C., Bergin, E. A., Schilke, P., & van Dishoeck, E. F. 2013, J. Phys. Chem. A, 117, 9661 CrossRefGoogle Scholar
Lis, D. C. & Schilke, P. 2003, ApJ (Letters), 597, L145 Google Scholar
Melnick, G. J., Tolls, V., Snell, R. L., et al. 2011, ApJ, 727, 13 CrossRefGoogle Scholar
Menten, K. M., Reid, M. J., Forbrich, J., & Brunthaler, A. 2007, A&A, 474, 515 Google Scholar
Omont, A., Yang, C., Cox, P., et al. 2013, A&A, 551, A115 Google Scholar
Pilbratt, G. L., Riedinger, J. R., Passvogel, T., et al. 2010, A&A, 518, L1 Google Scholar
Reid, M. J., Menten, K. M., Brunthaler, A., et al. 2014, ApJ, 783, 130 Google Scholar
Sanna, A., Reid, M. J., Carrasco-González, C., et al. 2012, ApJ, 745, 191 Google Scholar
Van der Tak, F., Black, J., Schöier, F., Jansen, D., & van Dishoeck, E. 2007, A&A, 468, 627 Google Scholar
Van der Wiel, M. H. D., van der Tak, F. F. S., Ossenkopf, V., et al. 2009, A&A, 498, 161 Google Scholar
Van Dishoeck, E. F., Herbst, E., & Neufeld, D. A. 2013, Chemical Reviews, 113, 9043 CrossRefGoogle Scholar