Fig. 3From: The transition region above sunspotsImages of the chromosphere (left, IRIS SJI 2796 Å) and TR (right, IRIS SJI 1400 Å) in a sunspot region. These images were taken on July 20, 2013. The field of view of each image has a size of 34″ × 42″. Image reproduced with permission from Zhang et al. (2017), copyright by AASBack to article page