Fig. 2: Sky-plane projection of all our Quaoar’s ring detections.
From: A dense ring of the trans-Neptunian object Quaoar outside its Roche limit
The occulting chords (green dashed line) and the ring detections with their 1σ error bars (red lines) are plotted for the 2 September 2018, 5 June 2019, 11 June 2020 and 27 August 2021 events. The black ellipses are the two simultaneous best-fitting solutions (Table 1), which are indistinguishable at this scale. The J2000 celestial north and east directions are shown in the upper right corner of each panel. Note that one of the chords in the 11 June 2020 occultations was obtained with CHEOPS space telescope, details in ref. 30.
