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Polycyclic aromatic hydrocarbon emission bands in selected planetary nebulae: a study of the behaviour with gas phase C/O ratio |
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| Authors: | Martin Cohen M J Barlow |
| Institution: | Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA;Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT |
| Abstract: | |
| Keywords: | ISM: abundances dust extinction ISM: lines and bands planetary nebulae: general Infrared: ISM |