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Manifestations of bright points observed in G-band and Ca II H by Hinode/SOT

Lin, Jun; Wu, Ning; Liu, Yan-Xiao

An algorithm was developed for identifying and tracking a magnetic bright point, or bright point (BP) for short, observed in both the photosphere (G-band) and chromosphere (Ca II H), as well as for pairing a photospheric BP (PBP) with its conjugate chromospheric BP (CBP). Two sets of data observed by Hinode/SOT in the quiet Sun near the disk cente…

Superpenumbral chromospheric flare

Srivastava, Abhishek K.; Liu, Suo; Zhang, Hong-Qi +2 more

We observed a C-class flare at the outer boundary of the superpenumbra of a sunspot. The flare was triggered by an emerging magnetic bipolar region that was obliquely oriented with respect to the superpenumbral fibrils. The flare started due to the low height magnetic reconnection of emerging magnetic flux with a superpenumbral field resulting in …