Fig. 2
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Narrowband images obtained using JAST80 on the [O III] nebula. Top : J0378 image, tracing the [O II]3727 emission line. Bottom : J0660 image, tracing Hα and [N II] emission. In both images, in blue, we show the contours of areas where we detect emission in each image. In dotted, red lines, we encircle the area where the full depth in the images is achieved.
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