PAH under XUV excitation: an ultrafast XUV-photochemistry experiment for astrophysics

PAH under XUV excitation: an ultrafast XUV-photochemistry experiment for astrophysics

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 dynam...

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Bibliographic Details
Main Authors: Hervé M., Castellanos P., Karras G., Despré V., Marciniak A., Constant E., Loriot V., Kuleff A.I., Tielens A. G. G. M., Lépine F.
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_06012.pdf
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Summary: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.
ISSN:2100-014X

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