scholarly journals TIME EVOLUTION OF CORONAL MAGNETIC HELICITY IN THE FLARING ACTIVE REGION NOAA 10930

2010 ◽  
Vol 720 (2) ◽  
pp. 1102-1107 ◽  
Author(s):  
Sung-Hong Park ◽  
Jongchul Chae ◽  
Ju Jing ◽  
Changyi Tan ◽  
Haimin Wang
Keyword(s):  
Active Region ◽  
Time Evolution ◽  
Magnetic Helicity ◽  
Active Region Noaa ◽  
Region Noaa

Relation between magnetic helicity injection and flare activities in active region NOAA 8100

2003 ◽  
Vol 32 (10) ◽  
pp. 1949-1952 ◽  
Author(s):  
T. Yokoyama ◽  
K. Kusano ◽  
T. Maeshiro ◽  
T. Sakurai
Keyword(s):  
Active Region ◽  
Magnetic Helicity ◽  
Active Region Noaa ◽  
Helicity Injection ◽  
Region Noaa

scholarly journals Magnetic helicity balance during a filament eruption that occurred in active region NOAA 9682

2011 ◽  
Vol 530 ◽  
pp. A36 ◽  
Author(s):  
F. P. Zuccarello ◽  
P. Romano ◽  
F. Zuccarello ◽  
S. Poedts
Keyword(s):  
Active Region ◽  
Magnetic Helicity ◽  
Active Region Noaa ◽  
Filament Eruption ◽  
Region Noaa

scholarly journals Time Evolution of Force-Free Parameter and Free Magnetic Energy in Active Region NOAA 10365

Solar Physics ◽  
2014 ◽  
Vol 290 (2) ◽  
pp. 491-506 ◽  
Author(s):  
G. Valori ◽  
P. Romano ◽  
A. Malanushenko ◽  
I. Ermolli ◽  
F. Giorgi ◽  
...  
Keyword(s):  
Active Region ◽  
Time Evolution ◽  
Free Parameter ◽  
Magnetic Energy ◽  
Active Region Noaa ◽  
Free Magnetic Energy ◽  
Region Noaa

scholarly journals STUDY OF MAGNETIC HELICITY INJECTION IN THE ACTIVE REGION NOAA 9236 PRODUCING MULTIPLE FLARE-ASSOCIATED CORONAL MASS EJECTION EVENTS

2013 ◽  
Vol 778 (1) ◽  
pp. 13 ◽  
Author(s):  
Sung-Hong Park ◽  
Kanya Kusano ◽  
Kyung-Suk Cho ◽  
Jongchul Chae ◽  
Su-Chan Bong ◽  
...  
Keyword(s):  
Active Region ◽  
Coronal Mass Ejection ◽  
Magnetic Helicity ◽  
Active Region Noaa ◽  
Helicity Injection ◽  
Region Noaa ◽  
Mass Ejection

Morphology of the flare-productive active region NOAA 9087

2020 ◽  
Vol 36 (3) ◽  
pp. 69-90
Author(s):  
S. N. Chornogor ◽  
◽  
N. N. Kondrashova ◽  
Keyword(s):  
Active Region ◽  
Active Region Noaa ◽  
Region Noaa

Characteristics of Soft X-Ray Radiation of the Solar Active Region NOAA 1024 Registered by the PINGVIN-M Device in July 2009

2020 ◽  
Vol 60 (7) ◽  
pp. 936-941
Author(s):  
M. I. Savchenko ◽  
P. V. Vatagin ◽  
P. B. Dmitriev ◽  
M. G. Ogurtsov ◽  
E. M. Kruglov ◽  
...  
Keyword(s):  
Active Region ◽  
Solar Active Region ◽  
Active Region Noaa ◽  
X Ray ◽  
Region Noaa

The three-dimensional structure of the corona above active region NOAA 9591 from microwave observations

2006 ◽  
Vol 50 (8) ◽  
pp. 679-686 ◽  
Author(s):  
N. G. Peterova ◽  
B. V. Agalakov ◽  
T. P. Borisevich ◽  
A. N. Korzhavin ◽  
B. I. Ryabov
Keyword(s):  
Active Region ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Active Region Noaa ◽  
Three Dimensional Structure ◽  
Region Noaa

Where do running penumbral waves emerge in chromosphere?

2018 ◽  
Vol 13 (S340) ◽  
pp. 155-156
Author(s):  
T. G. Priya ◽  
Jiangtao Su ◽  
Robertus Erd̎elyi
Keyword(s):  
Active Region ◽  
Active Region Noaa ◽  
Long Period ◽  
Wave Guides ◽  
Spiral Structures ◽  
Region Noaa ◽  
Umbral Oscillations

AbstractThe earlier work on the oscillatory phenomena in sunspot structures have supported in validating the detection of long-period oscillations, which are generated by the photospheric umbral response to the five minute p-mode global oscillations. We report here on the events of 3- min umbral oscillations which are detected within a duration of one hour from a single-polarity sunspot of active region NOAA 12132. The umbral oscillations that appear first around umbral boundaries is speculated to be excited by the wavefronts at the umbral-penumbral boundaries due to sub-photospheric or photospheric granular buffetings. The appearance of the wavefronts in spiral structures suggests that the wave guides are twisted. In addition, the newly formed running penumbral waves (RPWs) appears to be connected with the preceding RPWs.

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