arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2002.04984astro-ph.EP
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FU Ori原行星盘的化学模拟

Chemical modelling of FU Ori protoplanetary disks

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

摘要:

FUOri型恒星的亮度爆发,其亮度为$\sim100 L_{\odot}$,持续数十年,可能会影响周围原行星盘的化学成分。利用天体化学建模,我们分析了爆发引起的变化,并寻找对光度上升敏感的物种。盘分子组成的某些变化不仅出现在爆发期间,而且还可以在爆发结束后保留数十年。我们分析负责这些影响的主要化学过程,并评估化学惰性物种恢复到爆发前丰度的时间尺度。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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