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

Authors :: Getman, Konstantin V.
Akimkin, Vitaly V.
Arulanantham, Nicole
Kospal, Agnes
Semenov, Dmitry A.
Smirnov-Pinchukov, Grigorii V.
van Terwisga, Sierk E.
Source :: Research Notes of the AAS, Volume 6, Issue 3, id.64 (2022)
Publication Year :: 2022
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.<br />Comment: 6 pages, 1 figure, 1 table, accepted for publication in RNAAS