ASKAP Data Products for Project AS321 (ASKAP monitoring of three long-period radio transients): images and visibilities

The long-period radio transients are an emerging class of unusual astrophysical phenomena that generate bursts of radio waves at slow periodicities (minutes to hours). Their nature is mysterious and very little data exists toward the ~ten that are known (10-20 pulses is typical). As novel and rare transients, most radio observations carried out so far have consisted of Directors' Discretionary Time and Target-of-Opportunity requests. Consistent monitoring campaigns are challenging, as the sources only generate radio waves infrequently, making long dwells inefficient. Here we propose leveraging ASKAP's wide field-of-view to target three long-period radio transients in a single pointing, obtaining over 150 pulse measurements with 25 hours of observing time, in full polarisation, using CRACO and the correlator together to probe timescales of 100ms to tens of minutes. This will be a treasure trove for understanding the nature of these sources and will be the first consistent monitoring campaign at these frequencies.