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Titolo:
A STUDY OF SURGES AND FLARES WITHIN AN ACTIVE REGION
Autore:
SCHMIEDER B; VANDRIELGESZTELYI L; GERLEI O; SIMNETT GM;
Indirizzi:
OBSERV PARIS,ASTROPHYS SECT F-92195 MEUDON FRANCE STERRENKUNDIG INST 3508 TA UTRECHT NETHERLANDS HUNGARIAN ACAD SCI,HELIOPHYS OBSERV H-4010 DEBRECEN HUNGARY UNIV BIRMINGHAM,DEPT PHYS & SPACE RES BIRMINGHAM B15 2TT W MIDLANDS ENGLAND
Titolo Testata:
Solar physics
fascicolo: 1, volume: 146, anno: 1993,
pagine: 163 - 176
SICI:
0038-0938(1993)146:1<163:ASOSAF>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY-EMISSION; H-ALPHA; C-IV; SOLAR; SPECTROMETER; ULTRAVIOLET; LINES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
B. Schmieder et al., "A STUDY OF SURGES AND FLARES WITHIN AN ACTIVE REGION", Solar physics, 146(1), 1993, pp. 163-176

Abstract

Active region 2684 was observed by the Solar Maximum Mission and ground-based observatories simultaneously for over 12 hours on September 23, 1980. During these observations, recurrent surges were detected above an area with complex parasitic magnetic polarity located at the periphery of the active region. The time evolution of the Halpha surges, C IV brightenings and X-ray spikes leads to the conclusion that the energy source is in the corona, from magnetic reconnection. The energy is transported by energetic charged particles along the loops, thereby heating the chromosphere as the particles lose their energy. The divergent motion of the spots corresponding to small dipoles at the base ofthe surge indicates that there is important magnetic reorganisation. According to the magnetic field-line configuration (large loop or openstructures), X-rays can (or cannot) be associated with surges.

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Documento generato il 04/12/20 alle ore 22:20:16