scholarly journals A Transient Coronal Sigmoid in Active Region NOAA 11909: Build-up Phase, M-class Eruptive Flare, and Associated Fast Coronal Mass Ejection

Solar Physics ◽  
2021 ◽  
Vol 296 (6) ◽  
Author(s):  
Hema Kharayat ◽  
Bhuwan Joshi ◽  
Prabir K. Mitra ◽  
P. K. Manoharan ◽  
Christian Monstein
Keyword(s):  
Active Region ◽  
Coronal Mass Ejection ◽  
Active Region Noaa ◽  
Region Noaa ◽  
Mass Ejection

Coronal mass ejection of April 27, 2003, and evolution of the active region NOAA 10338 in the radio

2008 ◽  
Vol 52 (5) ◽  
pp. 409-418 ◽  
Author(s):  
N. N. Kardapolova ◽  
T. P. Borisevich ◽  
N. G. Peterova ◽  
S. V. Lesovoĭ
Keyword(s):  
Active Region ◽  
Coronal Mass Ejection ◽  
Active Region Noaa ◽  
Region Noaa ◽  
Mass Ejection

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.

Twist and Writhe of the Magnetic Flux in the Super Active Region NOAA 11429

2014 ◽  
pp. 335-348 ◽  
Author(s):  
A. Elmhamdi ◽  
P. Romano ◽  
A. S. Kordi ◽  
H. A. Al-trabulsy
Keyword(s):  
Active Region ◽  
Magnetic Flux ◽  
Active Region Noaa ◽  
Region Noaa

scholarly journals Features of Microwave Radiation and Magnetographic Characteristics of Solar Active Region NOAA 12242 Before the X1.8 Flare on December 20, 2014

2017 ◽  
Vol 57 (8) ◽  
pp. 978-987 ◽  
Author(s):  
V. E. Abramov-Maximov ◽  
V. N. Borovik ◽  
L. V. Opeikina ◽  
A. G. Tlatov ◽  
L. V. Yasnov
Keyword(s):  
Active Region ◽  
Microwave Radiation ◽  
Solar Active Region ◽  
Active Region Noaa ◽  
Region Noaa

The Formation of a Sunspot Penumbra Sector in Active Region NOAA 12574

2018 ◽  
Vol 857 (1) ◽  
pp. 21 ◽  
Author(s):  
Qiaoling Li ◽  
Xiaoli Yan ◽  
Jincheng Wang ◽  
DeFang Kong ◽  
Zhike Xue ◽  
...  
Keyword(s):  
Active Region ◽  
Active Region Noaa ◽  
Region Noaa ◽  
Sunspot Penumbra

scholarly journals Dependence of Coronal Mass Ejection Properties on Their Solar Source Active Region Characteristics and Associated Flare Reconnection Flux

2018 ◽  
Vol 865 (1) ◽  
pp. 4 ◽  
Author(s):  
Sanchita Pal ◽  
Dibyendu Nandy ◽  
Nandita Srivastava ◽  
Nat Gopalswamy ◽  
Suman Panda
Keyword(s):  
Active Region ◽  
Coronal Mass Ejection ◽  
Solar Source ◽  
Mass Ejection
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