Fig. 1

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Zoom into the luminosity and temperature peaks, characterized at 2.5″, to identify their associated protostellar and prestellar cores, detected at 0.3″−0.9″ resolution. Example zoom-in regions in our test-case ALMA-IMF protoclusters (the location of zoomed images is shown in Fig. D.1): a) the Evolved G012.80/W33-Main, b) the Young W43-MM1, c) the Young W43-MM2, and d) the Intermediate W43-MM3. Red and blue contours display the PPMAP luminosity and dust temperature map values, respectively, overlaid on the 1.3 mm continuum map shown in the grayscale background. Orange ellipses outline the FWHM size of the luminosity peaks associated with at least one protostellar core (see Dell’Ova et al. 2024, and Table C.2. White ellipses and crosses locate the protostellar and prestellar cores, respectively, identified by Nony et al. (2020), Nony et al. (2023), Nony et al (in prep.), Pouteau et al. (2022), and Armante et al. (2024). A scale bar is shown in the right-hand side of each panel. Some luminosity (and temperature) peaks host two and up to four protostellar cores of 1900 au typical size (see, e.g., P1–5 in panel b and P1 and P5 in panel c).
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