Chromospheric evolution and the flare activity of super-active region NOAA 6555

被引：0

作者：

Debi Prasad C. ^{[1
]}

Ambastha A. ^{[1
]}

Srivastava N. ^{[1
]}

Tripathy S.C. ^{[1
]}

Hagyard M.J. ^{[2
]}

机构：

[1] Udaipur Solar Observatory

[2] ES52, Space Science Laboratory, NASA/Marshall Space Flight Center, Huntsville

来源：

Journal of Astrophysics and Astronomy | 1997年 / 18卷 / 1期

关键词：

Chromosphere; Flare activity; Magnetic field; Super-active region;

D O I：

10.1007/BF02714853

中图分类号：

学科分类号：

摘要：

Super-active region NOAA 6555 was highly flare productive during the period March 21st - 27th, 1991 of its disk passage. We have studied its chromospheric activity using high spatial resolution Hα filtergrams taken at Udaipur along with MSFC vector magnetograms. A possible relationship of flare productivity and the variation in shear has been explored. Flares were generally seen in those subareas of the active region which possessed closed magnetic field configuration, whereas only minor flares and/or surges occurred in subareas showing open magnetic field configuration. Physical mechanisms responsible for the observed surges are also discussed.

引用

页码：39 / 55

页数：16

共 50 条

[1] Chromospheric evolution and the flare activity of super-active region NOAA 6555
Prasad, D
Ambastha, A
Srivastava, N
Tripathy, SC
Hagyard, MJ
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 1997, 18 (01) : 39 - 55
[2] Photospheric, chromospheric and helioseismic signatures of a large flare in super-active region NOAA 10486
Ashok Ambastha
Journal of Astrophysics and Astronomy, 2006, 27 : 255 - 265
[3] Photospheric, chromospheric and helioseismic signatures of a large flare in super-active region NOAA 10486
Ambastha, Ashok
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2006, 27 (2-3) : 255 - 265
[4] Active region evolution and flare activity - A case study of NOAA 7260
Nitta, N
VanDrielGesztelyi, L
Leka, KD
Hudson, HS
MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE: PROTOTYPES OF STELLAR MAGNETIC ACTIVITY, 1996, : 515 - 516
[5] Photospheric and Chromospheric Magnetic Field Evolution during the X1.6 Flare in Active Region NOAA 12192
Ferrente, F.
Zuccarello, F.
Guglielmino, S. L.
Criscuoli, S.
Romano, P.
ASTROPHYSICAL JOURNAL, 2023, 954 (02):
[6] Pre-flare dynamics of chromospheric structures and magnetic field in the active region NOAA 9077
Golovko, AA
Salakhutdinova, II
Khlystova, AI
SOLAR VARIABILITY: FROM CORE TO OUTER FRONTIERS, VOLS 1 & 2, 2002, 506 : 621 - 624
[7] Magnetic field configuration of active region NOAA 6555 at the time of a long-duration flare on 23 March 1991 – An Exception to Standard Flare Reconnection Model
Debi Prasad Choudhary
G. Allen Gary
Solar Physics, 1999, 188 (2) : 345 - 364
[8] Magnetic field configuration of active region NOAA 6555 at the time of a long-duration flare on 23 March 1991 - An exception to standard flare reconnection model
Choudhary, DP
Gary, GA
SOLAR PHYSICS, 1999, 188 (02) : 345 - 364
[9] Magnetic evolution and solar activity of active region NOAA 8765
Deng, Y
Yan, Y
Qiu, J
ADVANCED SOLAR POLARIMETRY: THEORY, OBSERVATION, AND INSTRUMENTA TION, 2001, 236 : 321 - 328
[10] Chromospheric Magnetic Field Measurements in a Flare and an Active Region Filament
J. W. Harvey
Solar Physics, 2012, 280 : 69 - 81

← 1 2 3 4 5 →