SIMBAD references

2006A&A...447..589G - Astronomy and Astrophysics, volume 447, 589-595 (2006/2-4)

On the diffuse bands related to the C2 interstellar molecule.

GALAZUTDINOV G.A., GNACINSKI P., HAN I., LEE B.-C., KIM K.-M. and KRELOWSKI J.

Abstract (from CDS):

The recently published idea that intensities of some weak diffuse interstellar bands (DIBs) are related to the C2 molecule column density have been examined. We use a set of high quality echelle spectra of heavily reddened stars, acquired at the Bohyunsan Optical Astronomical Observatory (South Korea), with a resolution R=30000. The high quality (high S/N ratio) of our spectra is proved by the fact that despite using the most widely used Phillips (2, 0) band of the C2 molecule (near 8760Å), we can trace the (3, 0) Phillips band (near 7725Å) as well. Equivalent widths of four (5176, 5542, 5546 and 5769Å) out of 16 examined DIBs demonstrate relatively good correlation with C2 column density. However, a majority of the studied DIBs, already reported as ``C2'' ones, most likely are not related to this simplest carbon molecule. A removal of peculiar objects like HD34078 from the analyzed sample does not substantially change the level of correlations.

Abstract Copyright:

Journal keyword(s): ISM: lines and bands - ISM: molecules

Status at CDS:  

Simbad objects: 22

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2006A&A...447..589G and select 'bookmark this link' or equivalent in the popup menu


2020.04.06-00:42:26

© Université de Strasbourg/CNRS

    • Contact