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Fig. 1

image

Exposure corrected mosaic image of UGC 03957. The central observation was performed in 2006; the outer observations (north, east, south and west) are from 2012. For observation details see Table 1. Light blue solid regions correspond to 0′−2′, 2′−4′, 4′−7′, and 7′−11′ (labeled from one to four outwards in the following), white dashed regions to 14′−25′ and 25′−34′ (labeled five and six in the following). All removed point sources detected with Chandra are indicated by green circles. The image is not corrected for vignetting and only used for demonstration purposes.

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