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Identification of More Interstellar C60(+) Bands
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 3242685
Author(s) Walker, G. A. H.; Bohlender, D. A.; Maier, J. P.; Campbell, E. K.
Author(s) at UniBasel Maier, John Paul
Campbell, Ewen
Year 2015
Title Identification of More Interstellar C60(+) Bands
Journal Astrophysical Journal Letters
Volume 812
Number 1
Pages / Article-Number L8
Abstract

Based on gas-phase laboratory spectra at 6 K, Campbell et al. confirmed that the diffuse interstellar bands (DIBs) at 9632.7 and 9577.5 Å are due to absorption by the fullerene ion They also reported the detection of two other, weaker bands at 9428.5 and 9365.9 Å. These lie in spectral regions heavily contaminated by telluric water vapor lines. We acquired CFHT ESPaDOnS spectra of HD 183143 close to the zenith and chopped with a nearby standard to correct for the telluric line absorption which enabled us to detect a DIB at 9365.9 Å of relative width and strength comparable to the laboratory absorption. There is a DIB of similar strength and FWHM at 9362.5 Å. A stellar emission feature at 9429 Å prevented detection of the 9428.5 Å band. However, a CFHT archival spectrum of HD 169454, where emission is absent at 9429 Å, clearly shows the 9428.5 Å DIB with the expected strength and width. These results further confirm as a DIB carrier.

Publisher University of Chicago Press
ISSN/ISBN 0004-637X
URL http://stacks.iop.org/2041-8205/812/i=1/a=L8
edoc-URL http://edoc.unibas.ch/dok/A6438802
Full Text on edoc No
Digital Object Identifier DOI 10.1088/2041-8205/812/1/L8
ISI-Number WOS:000364479800008
Document type (ISI) Article
 
   

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03/05/2024