Speaker
Miriam Meyer
(Institute for Ion Physics and Applied Physics, University of Innsbruck)
Description
Polycyclic aromatic hydrocarbons (PAHs) are isolated in multiply charged helium nanodroplets (HNDs). The charged dopant molecules are again liberated from the droplets upon collision with a stainless-steel surface, but remain decorated with up to several tens of helium (He) atoms. Action spectroscopy is performed on these He tagged species. A tunable pulsed laser is used for excitation and ion yields are recorded with a reflectron type time-of-flight mass spectrometer (TOF-MS). The recorded absorption spectra are compared to astronomical observations in order to identify possible carriers of diffuse interstellar bands (DIBs).
Primary author
Miriam Meyer
(Institute for Ion Physics and Applied Physics, University of Innsbruck)
Co-authors
Paul Martini
(Institute for Ion Physics and Applied Physics, University of Innsbruck)
Arne Schiller
(Institute for Ion Physics and Applied Physics, University of Innsbruck)
Serge A. Krasnokutski
(Laboratory Astrophysics Group of the MPI for Astronomy at the University of Jena)
Paul Scheier
(Institute for Ion Physics and Applied Physics, University of Innsbruck)
