PAH under XUV excitation: an ultrafast XUV-photochemistry experiment for astrophysics
1 University of Lyon, Universite Claude Bernard Lyon 1, CNRS, Institut Lumiere Matiere, F-69622 Villeurbanne, France
2 Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands
3 Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg 69120, Germany
Corresponding Author e-mail address: firstname.lastname@example.org
Published online: 16 April 2019
Understanding processes induced by XUV excitation of Polycyclic Aromatic Hydrocarbons (PAHs) is at the heart of molecular astrophysics, which aims at understanding molecular evolution in interstellar media. We used ultrashort XUV pulses to produce highly excited PAHs cations. The photo-induced dynamics is probed using a pump-probe XUV-IR spectroscopy. By studying PAH from small (naphthalene) to large (hexabenzocoronene) PAHs, we show that the dynamic is governed by the large density of states, in which many-body quantum effects are dominant.
© The Authors, published by EDP Sciences, 2019
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