High-resolution spectra of dark interstellar clouds

Details High-resolution spectra of dark interstellar clouds High-resolution spectra of dark interstellar clouds

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003kfnts...4...43k&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, Suppl, no. 4, p. 43-48

Computer Science

Scientific paper

The paper presents brand new spectra acquired with the aid of the coude echelle spectrometer installed at the coude focus of the 2-m telescope at Terskol Peak. Very high resolution (R =500 000), available since very recently, allows analysis of profile shapes of interstellar absorption spectral features. The latter are either very sharp (if originated in gas atoms or simple molecules) or show very complicated profiles (unidentified diffuse interstellar bands - DIBs). DIBs are believed to originate in complex, carbon-bearing molecules, possibly present in dark interstellar clouds. An analysis of their high-resolution profiles seems to be the most prospective way to identify the carriers of these puzzling spectral features.

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