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The H beta chromospheric magnetic field in a quiescent filament
Bao, XM; Zhang, HQ
AbstractWe 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 Hbeta 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.
KeywordSun : Chromosphere Sun : Filaments Sun : Magnetic Fields
Indexed BySCI
WOS IDWOS:000181239600008
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Document Type期刊论文
AffiliationChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Bao, XM,Zhang, HQ. The H beta chromospheric magnetic field in a quiescent filament[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2003,3(1):87-+.
APA Bao, XM,&Zhang, HQ.(2003).The H beta chromospheric magnetic field in a quiescent filament.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,3(1),87-+.
MLA Bao, XM,et al."The H beta chromospheric magnetic field in a quiescent filament".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 3.1(2003):87-+.
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