Multi-wavelength view of an M2.2 solar flare on 26 november 2000

被引：1

作者：

Chandra, R. ^{[1
]}

Verma, V. K. ^{[2
]}

Rani, S. ^{[1
]}

Maurya, R. A. ^{[3
]}

机构：

[1] Kumaun Univ, Dept Phys, DSB Campus, Naini Tal 263001, India

[2] Uttarakhand Space Applicat Ctr, Dehra Dun 248006, Uttar Pradesh, India

[3] Natl Inst Technol, Calicut 673601, Kerala, India

来源：

NEW ASTRONOMY | 2017年 / 51卷

关键词：

Sun: solar flares; Sun: reconnections; Sun: coronal mass ejections; MAGNETIC RECONNECTION; MODEL; EVOLUTION; EVENTS;

D O I：

10.1016/j.newast.2016.08.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we present a study of an M2.2 class solar flare of 26 November 2000 from NOM AR 9236. The flare was well observed by various ground based observatories (ARIES, Learmonths Solar Observatory) and space borne instruments (SOHO, HXRS, GOES) in time interval between 02:30 UT to 04:00 UT. The flare started with long arc-shape outer flare ribbon. Afterwards the main flare starts with two main ribbons. Initially the outer ribbons start to expand with an average speed (similar to 20 km s(-1)) and later it shows contraction. The flare was associated with partial halo coronal mass ejection (CMEs) which has average speed of 495 km s(-1). The SOHO/MDI observations show that the active region was in quadrupolar magnetic configuration. The flux cancellation was observed before the flare onset close to flare site. Our analysis indicate the flare was initiated by the magnetic breakout mechanism. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：105 / 112

页数：8

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