A novel spectroscopy technique for complex gas phase molecular ions
The origin of diffuse interstellar bands (DIBs)$^1$ and the unidentified infrared emission bands (UIEs)$^2$ are long standing questions of modern astrophysics. DIBs are absorption features of astronomical objects in the visible to near-infrared range whereas the UIEs can be found in the emission spectra of astronomical objects. At the Max Institute for Nuclear Physics we are developing a new spectroscopy technique for gas phase molecular ions that combines a cryogenic ion trap with extremely sensitive mid-infrared detectors. The measurement scheme, preparatory work toward its implementation, and the current status of the experimental setup will be presented.
- Herbig, G. H. The diffuse interstellar bands. Annu. Rev. Astron. Astrophys. 33, 19–73 (1995).
- Kwok, S. in Encyclopedia of Astrobiology (eds. Amils, R. et al.) 1–4 (Springer Berlin Heidelberg, 2014).