umbral dots
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Solar Physics ◽  
2020 ◽  
Vol 295 (4) ◽  
Author(s):  
Ali Kilcik ◽  
Volkan Sarp ◽  
Vasyl Yurchyshyn ◽  
Jean-Pierre Rozelot ◽  
Atila Ozguc

2020 ◽  
Vol 493 (2) ◽  
pp. 3036-3044
Author(s):  
L Bharti ◽  
B Sobha ◽  
C Quintero Noda ◽  
C Joshi ◽  
U Pandya

ABSTRACT We present high spatial resolution observations of short-lived transients, ribbons and jet-like events above a pore in Ca ii H images where fine structure, like umbral dots, light bridges and penumbral microfilaments, is present in the underlying photosphere. We found that current layers are formed at the edges of the convective fine structure, due to the shear between their horizontal field and the ambient vertical field. High vertical electric current density patches are observed in the photosphere around these events, which indicates the formation of a current sheet at the reconnection site. In the framework of past studies, low altitude reconnection could be the mechanism that produces such events. The reconnection is caused by an opposite polarity field produced by the bending of field lines by convective downflows at the edge of pore fine structure.


2018 ◽  
Vol 18 (9) ◽  
pp. 105 ◽  
Author(s):  
Yuzef Zhugzhda ◽  
Robert Sych
Keyword(s):  

2018 ◽  
Vol 860 (2) ◽  
pp. 168 ◽  
Author(s):  
Hadis Goodarzi ◽  
Serge Koutchmy ◽  
Ali Adjabshirizadeh

2018 ◽  
Vol 855 (1) ◽  
pp. 8 ◽  
Author(s):  
Rahul Yadav ◽  
Rohan E. Louis ◽  
Shibu K. Mathew
Keyword(s):  

2017 ◽  
Vol 338 (6) ◽  
pp. 662-670 ◽  
Author(s):  
H. Ebadi ◽  
V. Abbasvand ◽  
H. Pourjavadi
Keyword(s):  

Solar Physics ◽  
2015 ◽  
Vol 291 (2) ◽  
pp. 357-369 ◽  
Author(s):  
Kaifan Ji ◽  
Xia Jiang ◽  
Song Feng ◽  
Yunfei Yang ◽  
Hui Deng ◽  
...  
Keyword(s):  

Solar Physics ◽  
2015 ◽  
Vol 290 (4) ◽  
pp. 1119-1133 ◽  
Author(s):  
Song Feng ◽  
Yan Zhao ◽  
Yunfei Yang ◽  
Kaifan Ji ◽  
Hui Deng ◽  
...  
Keyword(s):  

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