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arXiv · 2002.04984

Chemical modelling of FU Ori protoplanetary disks

Tamara Molyarova·Vitaly Akimkin·Dmitry Semenov·Péter Ábrahám·Thomas Henning·Ágnes Kóspál·Eduard Vorobyov·Dmitri Wiebe
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Abstract

Luminosity outbursts of the FUOri type stars, which have a magnitude of $\sim100 L_{\odot}$ and last for decades, may affect chemical composition of the surrounding protoplanetary disk. Using astrochemical modeling we analyze the changes induced by the outburst and search for species sensitive to the luminosity rise. Some changes in the disk molecular composition appear not only during the outburst itself but can also retain for decades after the end of the outburst. We analyze main chemical processes responsible for these effects and assess timescales at which chemically inert species return to the pre-outburst abundances.

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Tamara Molyarova, Vitaly Akimkin, Dmitry Semenov, Péter Ábrahám, Thomas Henning, Ágnes Kóspál, Eduard Vorobyov, Dmitri Wiebe. 2020-02-12. Chemical modelling of FU Ori protoplanetary disks. https://doi.org/10.1017/s1743921319002230

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