X-ray emissivity maps of observation targets only; i.e., generated using all gas particles bound to the target halos and no emissions from the foreground or background added to the map. The X-ray energy range is 0.1 − 2 keV. Panels from left to right: Galaxy with a total mass of M = 3.06} × 10¹² M_⊙ at z = 0.03, galaxy group with a total mass of M = 7.00 × 10¹³ M_⊙ at z = 0.11, and galaxy cluster with a total mass of M = 3.78} ×10¹⁴ M_⊙ at z = 0.11. Each panel is 256 × 256 in dimension, corresponding to a sky region of 1° ×1°. The white dash-dot circle denotes R_200c of the target.