Chemical modeling of FU Ori protoplanetary disks

Tamara Molyarova, Vitaly Akimkin, Dmitry Semenov, Péter Ábrahám, Thomas Henning, Ágnes Kóspál, Eduard Vorobyov, Dmitri Wiebe, Bruce G. Elmegreen, L. Viktor Tóth, Manuel Güdel

Research output: Contribution to journalArticle


Luminosity outbursts of the FU Ori type stars, which have a magnitude of ∼100 L and last for decades, may affect chemical composition of the surrounding protoplanetary disk. Using astrochemical modelling we analyse 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 analyse main chemical processes responsible for these effects and assess timescales at which chemically inert species return to the pre-outburst abundances.

Original languageEnglish
Pages (from-to)367-368
Number of pages2
JournalProceedings of the International Astronomical Union
Publication statusAccepted/In press - Jan 1 2020



  • astrochemistry
  • planetary systems: Protoplanetary disks
  • stars: Pre-main-sequence

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

Cite this

Molyarova, T., Akimkin, V., Semenov, D., Ábrahám, P., Henning, T., Kóspál, Á., Vorobyov, E., Wiebe, D., Elmegreen, B. G., Tóth, L. V., & Güdel, M. (Accepted/In press). Chemical modeling of FU Ori protoplanetary disks. Proceedings of the International Astronomical Union, 367-368.