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While protoplanetary disks are often treated as isolated systems in planetformation models, observations increasingly suggest that vigorous interactionsbetween Class II disks and their environments are not rare. DO Tau is a T Tauristar that has previously been hypothesized to have undergone a close encounterwith the HV Tau system. As part of the DESTINYS ESO Large Programme, we presentnew VLT/SPHERE polarimetric observations of DO Tau and combine them witharchival HST scattered light images and ALMA observations of CO isotopologuesand CS to map a network of complex structures. The SPHERE and ALMA observationsshow that the circumstellar disk is connected to arms extending out to severalhundred au. HST and ALMA also reveal stream-like structures northeast of DOTau, some of which are at least several thousand au long. These streams appearnot to be gravitationally bound to DO Tau, and comparisons with previousHerschel far-IR observations suggest that the streams are part of a bridge-likestructure connecting DO Tau and HV Tau. We also detect a fainter redshiftedcounterpart to a previously known blueshifted CO outflow. While some of DOTau's complex structures could be attributed to a recent disk-disk encounter,they might be explained alternatively by interactions with remnant materialfrom the star formation process. These panchromatic observations of DO Tauhighlight the need to contextualize the evolution of Class II disks byexamining processes occurring over a wide range of size scales.

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A Panchromatic View of DO Tau's Complex Kilo-au Environment