Emerging magnetic flux, flares and filaments - FBS interval 16-23 June 1980

Conference · Fri Jan 01 04:00:00 EST 1982 · Adv. Space Res.; (United States)

OSTI ID:6400496

Martin, S F; Dezso, L; Antalova, A; Kucera, A

Observations are presented of 17 emerging magnetic flux regions with arch filaments related to new sunspots which were identified in the Hale Active Region No. 16918 during the 7 day interval from 16-22 June 1980. It was found that most of the new flux regions were clustered around the filament channel between the old opposite polarity fields as were most of the flares, while the two largest regions of new magnetic flux and a few of the smaller flux regions developed very near the end points of the filaments. It is suggested that the emergence of flux in existing active regions might be non-random in position along a filament channel as well as in distance from a filament channel. An analysis of the positions of 88 flares indicated that slightly more than half (54 percent) of the flares, not depending on size, were centered within the new flux regions. About 20 percent were found to be centered on the border between the new flux and the adjacent older magnetic field, while less than 1/3 occurred outside of the newly emerging flux regions but in many cases were very close to the newly emerging flux. It is concluded that at least 2/3 of the flares were intimately related to the emerging flux regions while the remaining 1/3 might be either indirectly related or unrelated to the emerging flux.

• Research Organization: California Inst. of Tech., Pasadena
• OSTI ID: 6400496
• Report Number(s): CONF-820582-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 2
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FLUX
SOLAR ACTIVITY
SOLAR FLARES
SOLAR PROMINENCES
STARSPOTS
SUNSPOTS