Magnetohydrodynamics model of an X-class flare in NOAA active region 12017 initiated with non-force-free extrapolation

2021 ◽  
Vol 28 (2) ◽  
pp. 024502
Author(s):  
Sushree S. Nayak ◽  
R. Bhattacharyya ◽  
Sanjay Kumar
Keyword(s):  
Active Region ◽  
Class Flare ◽  
Noaa Active Region

Electric currents and coronal heating in NOAA active region 6952

1994 ◽  
Vol 428 ◽  
pp. 860 ◽  
Author(s):  
T. R. Metcalf ◽  
R. C. Canfield ◽  
H. S. Hudson ◽  
D. L. Mickey ◽  
J.-P. Wulser ◽  
...  
Keyword(s):  
Active Region ◽  
Coronal Heating ◽  
Electric Currents ◽  
Noaa Active Region

scholarly journals A Two-step Magnetic Reconnection in a Confined X-class Flare in Solar Active Region 12673

2019 ◽  
Vol 870 (2) ◽  
pp. 97 ◽  
Author(s):  
Peng Zou ◽  
Chaowei Jiang ◽  
Xueshang Feng ◽  
Pingbing Zuo ◽  
Yi Wang ◽  
...  
Keyword(s):  
Active Region ◽  
Magnetic Reconnection ◽  
Solar Active Region ◽  
Class Flare

scholarly journals Probing Subsurface Flows in NOAA Active Region 12192: Comparison with NOAA 10486

2017 ◽  
Vol 849 (2) ◽  
pp. 94 ◽  
Author(s):  
Kiran Jain ◽  
S. C. Tripathy ◽  
F. Hill
Keyword(s):  
Active Region ◽  
Subsurface Flows ◽  
Noaa Active Region

scholarly journals Slippage of Jets Explained by the Magnetic Topology of NOAA Active Region 12035

Solar Physics ◽  
2017 ◽  
Vol 292 (10) ◽  
Author(s):  
R. Joshi ◽  
B. Schmieder ◽  
R. Chandra ◽  
G. Aulanier ◽  
F. P. Zuccarello ◽  
...  
Keyword(s):  
Active Region ◽  
Magnetic Topology ◽  
Noaa Active Region

scholarly journals Microwave indicator of potential geoeffectiveness and magnetic flux-rope structure of a solar active region

2021 ◽  
Vol 7 (1) ◽  
pp. 3-12
Author(s):  
Anastasiia Kudriavtseva ◽  
Ivan Myshyakov ◽  
Arkadiy Uralov ◽  
Victor Grechnev
Keyword(s):  
Magnetic Field ◽  
Active Region ◽  
Magnetic Flux ◽  
Neutral Line ◽  
Flux Rope ◽  
Coronal Magnetic Field ◽  
Horizontal Magnetic Field ◽  
Magnetic Flux Rope ◽  
Magnetic Flux Ropes ◽  
Class Flare

We analyze the presence of a microwave neutral-line-associated source (NLS) in a super-active region NOAA 12673, which produced a number of geo-effective events in September 2017. To estimate the NLS position, we use data from the Siberian Radioheliograph in a range 4–8 GHz and from the Nobeyama Radioheliograph at 17 GHz. Calculation of the coronal magnetic field in a non-linear force-free approximation has revealed an extended structure consisting of interconnected magnetic flux ropes, located practically along the entire length of the main polarity separation line of the photospheric magnetic field. NLS is projected into the region of the strongest horizontal magnetic field, where the main energy of this structure is concentrated. During each X-class flare, the active region lost magnetic helicity and became a CME source.

Study of Acoustic Halos in NOAA Active Region 12683

2020 ◽  
pp. 121-122
Author(s):  
S. C. Tripathy ◽  
K. Jain ◽  
S. Kholikov ◽  
F. Hill ◽  
P. Cally
Keyword(s):  
Active Region ◽  
Noaa Active Region

EVOLUTION OF RELATIVE MAGNETIC HELICITY AND CURRENT HELICITY IN NOAA ACTIVE REGION 11158

2012 ◽  
Vol 752 (1) ◽  
pp. L9 ◽  
Author(s):  
Ju Jing ◽  
Sung-Hong Park ◽  
Chang Liu ◽  
Jeongwoo Lee ◽  
Thomas Wiegelmann ◽  
...  
Keyword(s):  
Active Region ◽  
Magnetic Helicity ◽  
Noaa Active Region ◽  
Current Helicity

scholarly journals THE MAGNETIC SYSTEMS TRIGGERING THE M6.6 CLASS SOLAR FLARE IN NOAA ACTIVE REGION 11158

2013 ◽  
Vol 773 (2) ◽  
pp. 128 ◽  
Author(s):  
Shin Toriumi ◽  
Yusuke Iida ◽  
Yumi Bamba ◽  
Kanya Kusano ◽  
Shinsuke Imada ◽  
...  
Keyword(s):  
Active Region ◽  
Solar Flare ◽  
Magnetic Systems ◽  
Noaa Active Region
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