Volume 396, Number 3, December IV 2002
|Page(s)||987 - 991|
|Published online||05 December 2002|
Fine structure of profiles of weak diffuse interstellar bands*
Center for Astronomy, Nicholas Copernicus University, Gagarina 11, 87-100 Toruń, Poland e-mail: email@example.com; firstname.lastname@example.org
2 Special Astrophysical Observatory, Nizhnij Arkhyz 369167, Russia e-mail: email@example.com; firstname.lastname@example.org
3 Isaac Newton Institute of Chile, SAO Branch
4 Laboratorie d'Astrophysique de Marseille, Traverse du Siphon, Les trois Lucs, BP 8, 13376 Marseille Cedex 12, France e-mail: Claire.Moutou@oamp.fr
5 European Southern Observatory, Alonso De Cordova 3107, Vitacura, Santiago, Chile e-mail: email@example.com
Corresponding author: J. Krełowski, firstname.lastname@example.org
Accepted: 2 September 2002
We present a very high resolution (–220 000) analysis of profiles of selected diffuse interstellar bands (DIBs): 4964, 4980, 4985, 5850 Å. The 4980 Å feature is a very weak one, yet some substructures are proved to be present, as well as within the profiles of another stronger ones where this phenomenon was found several years ago. The presence of substructures inside DIB profiles supports their molecular origin.
Key words: ISM: clouds, molecules
© ESO, 2002
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