Contributed Talk

Studies of Diffuse Interstellar Bands in Cool Star Spectra

Rosine Lallement, Carine Babusiaux, Piercarlo Bonifacio, Hui-Chen Chen, Lucky Puspitarini (GEPI/Paris Observatory)

We have developed new spectroscopic tools for the analysis of cool star spectra that allow to adjust a combination of a synthetic stellar model, an atmospheric transmission and an interstellar DIB and/or a gaseous absorption line. This allows to extend to cool stars what was previously restricted to early-type targets with a smooth continuum. We will show applications of these tools to some of the strongest DIBS and several target series, including distant ones like e.g. red clump bulge giants. We will discuss comparisons between the DIB-extinction and DIB-gas relationships in different environments and locations.

This page has been updated on