Morphological Analysis and Magnetic Energy Variations of Active Region No. 431

Wu Qindi; Xu Zhentao

Publications of the Yunnan Observatory > 1981 > 0(S1): 50-54.

Wu Qindi, Xu Zhentao. Morphological Analysis and Magnetic Energy Variations of Active Region No. 431[J]. Publications of the Yunnan Observatory, 1981, (S1): 50-54.

Citation:

Wu Qindi, Xu Zhentao. Morphological Analysis and Magnetic Energy Variations of Active Region No. 431[J]. Publications of the Yunnan Observatory, 1981, (S1): 50-54.

Citation:

Wu Qindi, Xu Zhentao. Morphological Analysis and Magnetic Energy Variations of Active Region No. 431[J]. Publications of the Yunnan Observatory, 1981, (S1): 50-54.

PDF (293 KB)

Morphological Analysis and Magnetic Energy Variations of Active Region No. 431

Purple Mountain Observatory

More Information

Published Date: December 30, 1981

Graphical Abstract

Abstract

Abstract

A set of high-resolution sunspot photographs of Active Region No.431 was taken from Nov. 2 to 11 in 1980. On the basis of these data the morphological characters of the active region are analysed. Meanwhile, the twisting angle of the penumbral filaments of sunspots and other parameters are measured and used to calculate the magnetic energy of sunspots. It is shown that the flares observed in the active region could be caused by the releases of the free magnetic energy of sunspots through the comparison of the solar flares with the magnetic energy of sunspots.

FullText(HTML)

References (0)

Articles Related

[1]	Chen Xiajuan, Ji Shuchen. Observations of Microwave Ultra-Fast Absorption Phenomena Above Solar Active Region [J]. Publications of the Yunnan Observatory, 1999, 0(S1): 427-431.
[2]	Li Wei, Ai Guoxiang. Evolution of Vertical Electric Currents and Flares in An Active Region [J]. Publications of the Yunnan Observatory, 1999, 0(S1): 418-422.
[3]	Gu Shenghong, Tan Huisong, Liu Xuefu. The Spectrum Analysis of Three Chromospherically Active Binary Stars [J]. Publications of the Yunnan Observatory, 1999, 0(S1): 367-371.
[4]	Ma Yuan, Luo Baorong. Characteristics of the Optical Morphology, Magnetic Field and Velocity Field Accompanied With the Radio Bursts at the Metric Wavelength in AR6659 Region [J]. Publications of the Yunnan Observatory, 1999, 0(1): 18-26.
[5]	Hu Hanming, Gong Yuanfang, Shang Qongzheng, Lu Songquan, Li Yongsheng. The Morphological Analysis of Solar Fast Activities at Decimeter Waveband [J]. Publications of the Yunnan Observatory, 1998, 0(1): 49-54.
[6]	Li Weibao, Wang Hongzhao. An Analysis on the Strongest Active Regions of Solar Cycle 21st [J]. Publications of the Yunnan Observatory, 1997, 0(1): 10-17.
[7]	Liu Xinping, Li Jing, Liu Guilin. ON THE ENERGY STORAGE IN A SOLAR ACTIVE REGION AR 5395 BY SHEARING MAGNETIC FIELD(ABSTRACT) [J]. Publications of the Yunnan Observatory, 1990, 0(4): 80-80.
[8]	Hong Qinfang. Morphology and Evolutionary Characteristics of the Active Region AR 5278 in 1988 [J]. Publications of the Yunnan Observatory, 1990, 0(3): 12-16.
[9]	Gui Lin LIU. MAGNETIC FIELD EVOLUTION OF ACTIVE REGION 88184 [J]. Publications of the Yunnan Observatory, 1989, 0(S1): 103-107.
[10]	Jiu Kang Li, Qiong Ying LI, Ying CAO. THE CHROMOSPHERIC MORPHOLOGICAL PROPERTIES IN LARGE ACTIVE REGIONS OF DEC.1988 [J]. Publications of the Yunnan Observatory, 1989, 0(S1): 98-102.