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C-60(+) as a diffuse interstellar band carrier; a spectroscopic story in 6 acts

Linnartz, H. (author)
Cami, J. (author)
Cordiner, M. (author)
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Cox, N. L. J. (author)
Ehrenfreund, P. (author)
Foing, B. (author)
Gatchell, Michael (author)
Stockholms universitet,Fysikum,Universität Innsbruck, Austria
Scheier, P. (author)
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 (creator_code:org_t)
Elsevier BV, 2020
2020
English.
In: Journal of Molecular Spectroscopy. - : Elsevier BV. - 0022-2852 .- 1096-083X. ; 367
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • In 2019 it was exactly 100 years ago that the first two DIBs, diffuse interstellar bands, were discovered by Mary Lea Heger. Today some 500 + DIBs are known. In numerous observational, modelling and laboratory studies, efforts have been made to identify the carriers of these absorption features that are observed in the light of reddened stars crossing diffuse and translucent clouds. Despite several claims over the years that specific DIBs could be assigned to specific species, not one of these withstood dedicated follow-up studies. An exception is C-60(+). In 2015, Campbell et al. showed that two strong bands, recorded in the laboratory around 960 nm, coincided precisely with known DIBs and in follow-up studies three more matches between C-60(+) transitions and new observational DIB studies were claimed. Over the last four years the evidence for C-60(+) as the first identified DIB carrier - including new laboratory data and Hubble Space Telescope observations - has been accumulating, but not all open issues have been solved yet. This article summarizes 6 spectroscopic achievements that sequentially contributed to what seems to become the first DIB story with a happy end.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

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ref (subject category)
art (subject category)

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