Putting the Diffuse Interstellar Bands on the map - literally!
Jacco Th. van Loon (Keele University, UK)
TL;DR
This paper presents a large-scale mapping of diffuse interstellar bands (DIBs) across the sky using various stellar backgrounds to better understand the interstellar medium and the carriers of DIBs.
Contribution
It introduces a new observational approach to map DIBs across different regions of the sky using hundreds of background stars.
Findings
Initial DIB maps show spatial variations across different sky regions.
The method provides new insights into the distribution of DIB carriers.
Ongoing experiments aim to refine the understanding of DIBs in the interstellar medium.
Abstract
In a quest to further our understanding of the diffuse interstellar medium (ISM) as well as the unidentified carriers of the diffuse interstellar bands (DIBs), we are mapping DIBs across the sky using hundreds of hot stars as background torches - globular clusters (in particular omega Centauri), nearby stars in and around the Local Bubble, and stars within the Magellanic Clouds. I describe the results so far obtained and our current experiments.
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