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arXiv · 2204.01824

The Young Binary DQ Tau Produces Another X-ray Flare Near Periastron

Konstantin V. Getman·Vitaly V. Akimkin·Nicole Arulanantham·Agnes Kospal·Dmitry A. Semenov·Grigorii V. Smirnov-Pinchukov·Sierk E. van Terwisga
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Abstract

This work is part of a multi-wavelength program to study the effects of X-ray/UV/optical stellar radiation on the chemistry of the circumbinary disk around the young high-eccentricity binary DQ Tau. ALMA observations for near/around December 5, 2021 periastron were postponed due to bad weather, but supporting Swift-XRT-UVOT TOO observations were successful. These Swift observations along with previous X-ray-optical-mm data show that DQ Tau keeps exhibiting powerful flares near periastron, offering a unique laboratory for studies of flare effects on the gas-phase ion chemistry in protoplanetary disks.

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Konstantin V. Getman, Vitaly V. Akimkin, Nicole Arulanantham, Agnes Kospal, Dmitry A. Semenov, Grigorii V. Smirnov-Pinchukov, Sierk E. van Terwisga. 2022-04-04. The Young Binary DQ Tau Produces Another X-ray Flare Near Periastron. https://doi.org/10.3847/2515-5172%2Fac618a

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