Fig. 4.
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Relation between SFR and thermal X-ray luminosity of hot gas on sub-kiloparsec scales. The color scale represents the distance from the galactic center, and the marker size represents the SFR surface density. The central data point containing the AGN has been excluded. The vertical dashed black line marks SFR = 1 M⊙ yr−1, corresponding to ΣSFR = 8.2 × 10−6 M⊙ yr−1 kpc−2. The solid black line represents the best-fit scaling relation as expressed in Eq. (5), derived from the central 12 data points with SFRs > 1 M⊙ yr−1. The Spearman rank correlation coefficient (ρsp) is provided. The gray crosses represent data from the central regions of nearby galaxies (Zhang et al. 2024), while the dashed gray line indicates the corresponding best-fit relation for these galaxies.
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