X-ray image of A1835 in the energy range of 0.4–7.0 keV with the background subtracted and exposure corrected. Left panel: large-scale image of A1835. The yellow bar indicates the scale of ﹩3^{\prime} ﹩ or 715 kpc. This image shows a distinctive cool core in the center of A1835, which appears to be elliptical. No evidence of a major merger is found in this X-ray surface brightness. Right panel: zoomed-in X-ray image of the central region of A1835 within ﹩r\lt 40^{\prime\prime} ﹩ or 159 kpc from the left panel.