Profiles of blue and infrared diffuse interstellar bands

Citation
Ga. Galazutdinov et al., Profiles of blue and infrared diffuse interstellar bands, M NOT R AST, 323(2), 2001, pp. 293-300
Citations number
28
Categorie Soggetti
Space Sciences
Journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN journal
00358711 → ACNP
Volume
323
Issue
2
Year of publication
2001
Pages
293 - 300
Database
ISI
SICI code
0035-8711(20010511)323:2<293:POBAID>2.0.ZU;2-M
Abstract
The paper presents a survey of profiles of reasonably strong diffuse inters tellar bands (DIBs) based on the extensive set of high-resolution spectra a cquired with the aid of echelle spectrographs installed at the 2-m Terskol, 2-m Pic du Midi and 1-m SAO telescopes. The surveyed diffuse interstellar bands cover the spectral ranges of blue and near-infrared, i.e the DIBs not surveyed by Krelowski & Schmidt. The possible modifications caused by stel lar and telluric lines are discussed. The very broad features such as 4430 are not discussed because the shapes of their profiles, extracted from eche lle spectra, are very uncertain. The signal-to-noise (S/N) ratios of the sp ectra are not high enough to enable discussion of the profiles of numerous weak interstellar features discovered recently.