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《中国天文和天体物理学报(英文版)》 2003-01
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The Hβ Chromospheric Magnetic Field in a Quiescent Filament

Xing-Ming Bao and Hong-Qi ZhangNational Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012; baoxm@sunlO.bao.ac.cn  
We observed the line-of-sight magnetic field in the chromosphereand photosphere of a large quiescent filament on the solar disk on September 6, 2001 using the Solar Magnetic Field Telescope in Huairou Solar Observing Station. The chromospheric and photospheric magnetograms together with Hβ filtergrams of the filament were examined. The filament was located on the neutral line of the large scale longitudinal magnetic field in the photosphere and the chromosphere. The lateral feet of the filament were found to be related to magnetic structures with opposite polarities. Two small lateral feet are linked to weak parasitic polarity. There is a negative magnetic structure in the photosphere under a break of the filament. At the location corresponding to the filament in the chromospheric magnetograms, the magnetic strength is found to be about 40-70 Gauss (measuring error about 39 Gauss). The magnetic signal indicates the amplitude and orientation of the internal magnetic field in the filament. We discuss several possible causes which may produce such a measured signal. A twisted magnetic configuration inside the filament is suggested .
【Fund】: Supported by the National Natural Science Foundation of China.
【CateGory Index】: P182
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【Co-citations】
Chinese Journal Full-text Database 6 Hits
1 XIAO Jiang,HU Ke-liang,LIN Jia-ben,SHEN Ji,DENG Yuan-yong(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China);Tracking and guiding for full solar disk image using large CCD-array[J];Optics and Precision Engineering;2008-09
2 ZHANG Hongqi National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;Diagnosis of solar chromospheric magnetic field[J];中国科学A辑(英文版);2002-S1
3 DENG YuanYong & ZHANG HongQi Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;Progress in Space Solar Telescope[J];中国科学(G辑:物理学 力学 天文学)(英文版);2009-11
4 ZHANG Mei; ZHANG Hongqi(Beijing Astronomical Observatory, The Chinese Academy of Sciences, 100080);CHROMOSPHERIC MAGNETIC FIELDS OBSERVATION FOR QUIET-SUN REGIONS[J];CHINESE JOURNAL OF SPACE SCIENCE;1999-04
5 Hong-Qi Zhang, Xing-Ming Bao, Yin Zhang, Ji-Hong Liu, Shu-Dong Bao, Yuan-Yong Deng, Wei Li, Jie Chen, Jin-Ping Dun, Jiang-Tao Su, Juan Guo, Xiao-Fan Wang, Ke-Liang Hu, Gang-Hua Lin and Dong-Guang Wang National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012;;Three Super Active Regions in the Descending Phase of Solar Cycle 23[J];中国天文和天体物理学报(英文版);2003-06
6 Yun-Chun Jiang1, Yuan-Deng Shen1 and Jing-Xiu Wang2 1 National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011; 2 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012;Eruption of an Active-Region Filament Driven by an Emerging Bipole[J];中国天文和天体物理学报(英文版);2007-01
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