A search for fine structure inside high resolution profiles of weak diffuse interstellar bands

Details A search for fine structure inside high resolution profiles of weak diffuse interstellar bands A search for fine structure inside high resolution profiles of weak diffuse interstellar bands

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...448..221s&link_type=abstract

Astronomy and Astrophysics, Volume 448, Issue 1, March II 2006, pp.221-229

Astronomy and Astrophysics

Astrophysics

1

Ism: Clouds, Ism: Molecules

Scientific paper

This paper presents a survey of the high-resolution profiles of selected, moderately weak diffuse interstellar bands (DIBs) between 4725 and 6730 Å. In very high signal-to-noise spectra, obtained as a result of averaging several individual exposures of reddened, early-type stars that show Doppler splitting of <2 km s-1 in interstellar gas lines, the profiles seem to have a substructure. This supports the molecular origin hypothesis for DIBs. We studied the profiles of the diffuse interstellar bands at wavelengths of 4726.33, 4963.85, 5418.89, 5541.74, 5544.95, 5546.46, 5762.73, 5766.05, 5769.09, 6439.41, 6445.53, 6449.16, 6729.28 Å.

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