Appearance of BPs and loop-like structures in region “R1”. The white circles outline the locations of several BPs in the 1330 Å image and HMI LOS magnetogram. The arrows in panels a), b) and d), e) point to the loop-like structures in close proximity to some BPs. Dashed lines “A−B” and “C−D” (panel b)) show the cut positions used to obtain the stack plots shown in Figs. 5a, b. Red and white squares in panel e) denote the FOVs of Figs. 3a–d and e–l, respectively.