Fig. 2

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Herschel/SPIRE RGB image of the Chal star-forming region constructed from the 150 µm, 250 µm, and 500 µm channels showing the interstellar dust (central panel). SPHERE/IRDIS Qϕ images for all systems with extended circumstellar dust in our sample (surrounding panels). The shown SPHERE data were taken in the H-band, with the exceptions of the HD 97048 and SY Cha system, for which we show K-band data, as well as the CS Cha and CV Cha systems for which we show J-band data. The position of each detected source within the Cha I cloud is indicated with white markers with green border; the positions of systems in our sample with nondetections of circumstellar dust are shown as gray stars with orange borders. For the CS Cha, HP Cha, and CHX 22 systems, the positions of visible stellar multiple components are indicated.
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