New evidence supporting past dust ejections from active asteroid (4015) Wilson–Harrington

Open Access

Fig. 2

Polarization phase curve (PPC) of WH. Each symbol denotes observations from different observatories and instruments. A green dotted line shows a fitted line using a trigonometric function (TF, Eq. (5)), and a blue dashed line shows a fitted line using a linear-exponential function (LE, Eq. (6)).

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