Towards an Adequate Method to Isolate Spectroscopic Families of Diffuse Interstell Bands

Details Towards an Adequate Method to Isolate Spectroscopic Families of Diffuse Interstell Bands Towards an Adequate Method to Isolate Spectroscopic Families of Diffuse Interstell Bands

2004-04-16

arxiv.org/abs/astro-ph/0404330v1

MNRAS 338 p991 2003

Astronomy and Astrophysics

Astrophysics

11 pages 3 figures 7 tables

Scientific paper

10.1046/j.1365-8711.2003.06143.x

We divide some of the observed diffuse interstellar bands (DIBs) into families which appear to have spectral structures of single species. Three different methods are applied to separate such families, exploring the best approach for future investigations of this type. Starting with statistical treatment of the data, we found that statistical methods by themselves give insufficient results. Two other methods of data analysis ("Averaging EWs" and "Investigating the figures with arranged spectrograms") were found to be more useful as tools for finding the spectroscopic families of DIBs. On the basis of these methods, we suggest some candidates as "relatives" of 5780 and 5797 bands.

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