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Title:
Successive Solar Flares and Coronal Mass Ejections on 2005 September 13 from NOAA AR 10808
Authors:
Liu, Chang; Lee, Jeongwoo; Karlický, Marian; Prasad Choudhary, Debi; Deng, Na; Wang, Haimin
Affiliation:
AA(Space Weather Research Laboratory, Center for Solar-Terrestrial Research, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982, USA ), AB(Physics Department, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982, USA ), AC(Astronomical Institute of the Academy of Sciences of the Czech Republic, 25165 Ondřejov, Czech Republic ), AD(Department of Physics and Astronomy, California State University, Northridge, CA 91330-8268, USA ), AE(Department of Physics and Astronomy, California State University, Northridge, CA 91330-8268, USA ), AF(Space Weather Research Laboratory, Center for Solar-Terrestrial Research, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982, USA )
Publication:
The Astrophysical Journal, Volume 703, Issue 1, pp. 757-768 (2009). (ApJ Homepage)
Publication Date:
09/2009
Origin:
IOP
ApJ Keywords:
Sun: coronal mass ejections: CMEs, Sun: flares, Sun: radio radiation, Sun: UV radiation, Sun: X-rays, gamma rays
DOI:
10.1088/0004-637X/703/1/757
Bibliographic Code:
2009ApJ...703..757L

Abstract

We present a multiwavelength study of the 2005 September 13 eruption from NOAA AR 10808 that produced total four flares and two fast coronal mass ejections (CMEs) within ~1.5 hr. Our primary attention is paid to the fact that these eruptions occurred in close succession in time, and that all of them were located along an S-shaped magnetic polarity inversion line (PIL) of the active region. In our analysis, (1) the disturbance created by the first flare propagated southward along the PIL to cause a major filament eruption that led to the first CME and the associated second flare underneath. (2) The first CME partially removed the overlying magnetic fields over the northern δ spot to allow the third flare and the second CME. (3) The ribbon separation during the fourth flare would indicate reclosing of the overlying field lines opened by the second CME. It is thus concluded that these series of flares and CMEs are interrelated to each other via magnetic reconnections between the expanding magnetic structure and the nearby magnetic fields. These results complement previous works made on this event with the suggested causal relationship among the successive eruptions.
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