Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-26T17:00:23.030Z Has data issue: false hasContentIssue false
  • English
  • Français

Search for far-IR PAH bands with Herschel: modelling andobservational approaches

Published online by Cambridge University Press:  30 March 2011

C. Joblin ,
A.G.G.M. Tielens ,
C. Joblin ,
G. Mulas ,
G. Malloci  and
E. Bergin
C. Joblin
Affiliation:
Université de Toulouse, UPS, CESR, 9 Av. colonel Roche, 31028 Toulouse Cedex 4, France CNRS, UMR 5187, 31028 Toulouse, France
G. Mulas
Affiliation:
INAF – Osservatorio Astronomico di Cagliari – Astrochemistry Group, Strada 54, Loc. Poggio dei Pini, 09012 Capoterra (CA), Italy
G. Malloci
Affiliation:
INAF – Osservatorio Astronomico di Cagliari – Astrochemistry Group, Strada 54, Loc. Poggio dei Pini, 09012 Capoterra (CA), Italy

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.

Herschel opens the possibility to detect the low-frequency vibrationalbands of individual polycyclic aromatic hydrocarbon (PAH) molecules and therefore toprogress in our understanding of the nature of these species and the properties of theenvironments from which they emit. However, unless one individual molecule dominates thePAH family, this detection will not be straightforward and it is necessary to optimise theobservational search with an educated guess of the band profiles and intensities. Sucheducated guess can be obtained from models that include a detailed description of themolecular properties (anharmonicity, rotation...) in the modelling of the cooling cascadeof the emitting species. First results are expected soon from the observation of the OrionBar as part of the HEXOS Herschel key program.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 46: PAHs and the Universe: A Symposium to Celebrate the 25thAnniversary of the PAH Hypothesis , 2011 , pp. 123 - 130
Copyright
© EAS, EDP Sciences 2011

References

Allamandola, L.J., Tielens, A.G.G.M., & Barker, J.R., 1989, ApJS, 71, 733 CrossRef
Bauschlicher, C.W., Boersma, C., Ricca, A., Mattioda, A.L., et al., 2010, ApJS, 189, 341 CrossRef
Bergin, E.A., Phillips, T.G., Comito, C., et al., 2010, A&A, 521, L20
Désert, F.-X., Boulanger, F., & Puget, J.L., 1990, A&A, 237, 215
Draine, B.T., & Li, A., 2001, ApJ, 551, 807 CrossRef
Draine, B.T., & Li, A., 2007, ApJ, 657, 810 CrossRef
de Graauw, T., Helmich, F.P., Phillips, T.G., et al., 2010, A&A, 518, L4
Griffin, M.J., Abergel, A., Abreu, A., et al., 2010, A&A, 518, L3 PubMed
Habing, H.J., 1968, BAIN, 19, 421
Herbig, G.H., 1995, ARA&A, 33, 19 CrossRef
Joblin, C., Boissel, P., Léger, A., D’Hendecourt, L., & Défourneau, D., 1995, A&A, 299, 835
Joblin, C., Toublanc, D., Boissel, P., & Tielens, A.G.G.M., 2002, Mol. Phys., 100, 3595 CrossRef
Joblin, C., & Mulas, G., 2009, in: Interstellar dust properties: from fundamental studies to astronomical models, ed. F. Boulanger, C. Joblin, A. Jones, & S. Madden, EAS Pub. Series, 35, 133
Kurucz, R.L., 1991, BAAS, 23, 1047
Le Petit, F., Nehmé, C., Le Bourlot, J., & Roueff, E., 2006, ApJS, 164, 506 CrossRef
Malloci, G., Joblin, C., & Mulas, G., 2007, Chem. Phys., 332, 353 CrossRef
Mattioda, A.L., Ricca, A., Tucker, J., Bauschlicher, C.W., & Allamandola, L.J., 2009, AJ, 137, 4054 CrossRef
Mulas, G., 1998, A&A, 338, 243
Mulas, G., Malloci, G., Joblin, C., & Toublanc, D., 2006a, A&A, 460, 93
Mulas, G., Malloci, G., Joblin, C., & Toublanc, D., 2006b, A&A, 456, 161
Pech, C., Joblin, C., & Boissel, P., 2002, A&A, 388, 639 PubMed
Pilbratt, G.L., Riedinger, J.R., Passvogel, T., et al., 2010, A&A, 518, L1
Pirali, O., Van-Oanh, N.-T., Parneix, P., Vervloet, M., & Bréchignac, P., 2006, Phys. Chem. Chem. Phys., 8, 3707 CrossRef
Pirali, O., Vervloet, M., Mulas, G., Malloci, G., & Joblin, C., 2009, Phys. Chem. Chem. Phys., 11, 3443 CrossRef
Poglitsch, A., Waelkens, C., Geis, N., et al., 2010, A&A, 518, L2
Porezag, D., Frauenheim, T., Köhler, T., Seifert, G., & Kaschner, R., 1995, Phys. Rev. B, 51, 12947 CrossRef
Rouan, D., Léger, A., Omont, A., & Giard, M., 1992, A&A, 253, 498
Salama, F., Galazutdinov, G.A., Krełowski, J., Allamandola, L.J., & Musaev, F.A., 1999, ApJ, 526, 265 CrossRef
Ysard, N., & Verstraete, L., 2010, A&A, 509, A12
Zhang, J., Han, F., Pei, L., Kong, W., & Li, A., 2010, ApJ, 715, 485 CrossRef