Fine structure of profiles of weak diffuse interstellar bands

Details Fine structure of profiles of weak diffuse interstellar bands Fine structure of profiles of weak diffuse interstellar bands

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...396..987g&link_type=abstract

Astronomy and Astrophysics, v.396, p.987-991 (2002)

Astronomy and Astrophysics

Astrophysics

9

Ism: Clouds, Molecules

Scientific paper

We present a very high resolution (R=120 000-220 000) 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. Based on data collected at the ESO 3.6 m telescope operated on La Silla Observatory, Chile and 2-m telescope of the Terskol Observatory, Russia.

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