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Photon Tools for Physical Chemistry 2019

8–11 Jan 2019
Beatenberg, Switzerland
Europe/Zurich timezone
Please check [https://www.psi.ch/en/sls/vuv/ptpc2019] for a few impressions from PTPC2019

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Session

Astrochemistry I

10 Jan 2019, 08:30
Beatenberg, Switzerland

Beatenberg, Switzerland

Hotel Dorint Blüemlisalp Hubel 114 3803 Beatenberg Switzerland

Conveners

Astrochemistry I

  • Laurent Nahon

Presentation materials

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  1. 50. Introduction
    Dr Laurent Nahon (Synchrotron SOLEIL)
    10/01/2019, 08:30
  2. 21. Probing the Dissociation of Interstellar Polyaromatics Using Synchrotron and FEL Radiation
    Dr Jordy Bouwman (Sackler Laboratory for Astrophysics - Leiden University)
    10/01/2019, 08:40

    The presence of interstellar polycyclic aromatic hydrocarbons (PAHs) is inferred from the widespread mid-infrared (IR) emission bands that are observed at 3.3, 6.2, 7.7, 8.6 and 11.2 μm. [1] This IR radiation is emitted as the PAHs cascade down to the ground state after they have been excited by interstellar (vacuum) ultraviolet radiation. [2] PAHs have been observed towards a large number of...

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  3. 39. Titan’s atmospheric aerosols as seen by SOLEIL-synchrotron VUV-light
    Prof. Nathalie Carrasco (LATMOS / University of Versailles Saint Quentin)
    10/01/2019, 09:05

    Titan, the largest moon of Saturn, has a dense atmosphere whose upper layers are mainly composed of methane (CH$_4$) and molecular nitrogen (N$_2$). Their photochemistry leads to the formation of aerosols at very high altitudes (>800 km). Once these aerosols are formed and through their descent towards the surface, they will still interact with persistent UV/VUV radiations, at different...

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  4. 40. Photo-processing of astro-PAHs
    Dr Christine Joblin (IRAP, Université de Toulouse, CNRS)
    10/01/2019, 09:30
    Talk

    The interaction of polycyclic aromatic hydrocarbons (PAHs) with UV irradiation is a key process in astrochemistry since it governs the heating of the gas by photoelectric effect and can contribute to the catalytic formation of molecules such as H$_2$ and C$_2$H$_2$. The fragmentation rate of these PAH species also determines their survival in astrophysical environments [1]. In this...

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