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Title: SYMPATHETIC FILAMENT ERUPTIONS CONNECTED BY CORONAL DIMMINGS

Abstract

We present for the first time detailed observations of three successive, interdependent filament eruptions that occurred one by one within 5 hr from different locations beyond the range of a single active region. The first eruption was observed from an active region and was associated with a coronal mass ejection (CME), during which diffuse and complex coronal dimmings formed, largely extending to the two other filaments located in quiet-Sun regions. Then, both quiescent filaments consecutively underwent the second and third eruptions, while the nearby dimmings were persistent. Comparing the result of a derived coronal magnetic configuration, the magnetic connectivity between the dimmings suggested that they were caused by the joint effect of simple expansion of overlying loop systems forced by the first eruption, as well as by its erupting field interacting or reconnecting with the surrounding magnetic structures. Note that the dimming process in the first eruption indicated a weakening and partial removal of an overlying magnetic field constraint on the two other filaments, and thus one can physically connect these eruptions as sympathetic. It appears that the peculiar magnetic field configuration in our event was largely favorable to the occurrence of sympathetic filament eruptions. Because coronal dimmings are frequentmore » and common phenomena in solar eruptions, especially in CME events, it is very likely that they represent a universal agent that can link consecutive eruptions nearby with sympathetic eruptions.« less

Authors:
; ; ; ;  [1]
  1. National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011 (China)
Publication Date:
OSTI Identifier:
21584857
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 738; Journal Issue: 2; Other Information: DOI: 10.1088/0004-637X/738/2/179; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ERUPTION; FILAMENTS; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC FIELDS; MASS; SOLAR CORONA; SOLAR FLARES; ATMOSPHERES; SOLAR ACTIVITY; SOLAR ATMOSPHERE; STELLAR ACTIVITY; STELLAR ATMOSPHERES; STELLAR CORONAE; STELLAR FLARES

Citation Formats

Jiang Yunchun, Yang Jiayan, Hong Junchao, Bi Yi, and Zheng Ruisheng, E-mail: jyc@ynao.ac.cn. SYMPATHETIC FILAMENT ERUPTIONS CONNECTED BY CORONAL DIMMINGS. United States: N. p., 2011. Web. doi:10.1088/0004-637X/738/2/179; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
Jiang Yunchun, Yang Jiayan, Hong Junchao, Bi Yi, & Zheng Ruisheng, E-mail: jyc@ynao.ac.cn. SYMPATHETIC FILAMENT ERUPTIONS CONNECTED BY CORONAL DIMMINGS. United States. doi:10.1088/0004-637X/738/2/179; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
Jiang Yunchun, Yang Jiayan, Hong Junchao, Bi Yi, and Zheng Ruisheng, E-mail: jyc@ynao.ac.cn. Sat . "SYMPATHETIC FILAMENT ERUPTIONS CONNECTED BY CORONAL DIMMINGS". United States. doi:10.1088/0004-637X/738/2/179; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
@article{osti_21584857,
title = {SYMPATHETIC FILAMENT ERUPTIONS CONNECTED BY CORONAL DIMMINGS},
author = {Jiang Yunchun and Yang Jiayan and Hong Junchao and Bi Yi and Zheng Ruisheng, E-mail: jyc@ynao.ac.cn},
abstractNote = {We present for the first time detailed observations of three successive, interdependent filament eruptions that occurred one by one within 5 hr from different locations beyond the range of a single active region. The first eruption was observed from an active region and was associated with a coronal mass ejection (CME), during which diffuse and complex coronal dimmings formed, largely extending to the two other filaments located in quiet-Sun regions. Then, both quiescent filaments consecutively underwent the second and third eruptions, while the nearby dimmings were persistent. Comparing the result of a derived coronal magnetic configuration, the magnetic connectivity between the dimmings suggested that they were caused by the joint effect of simple expansion of overlying loop systems forced by the first eruption, as well as by its erupting field interacting or reconnecting with the surrounding magnetic structures. Note that the dimming process in the first eruption indicated a weakening and partial removal of an overlying magnetic field constraint on the two other filaments, and thus one can physically connect these eruptions as sympathetic. It appears that the peculiar magnetic field configuration in our event was largely favorable to the occurrence of sympathetic filament eruptions. Because coronal dimmings are frequent and common phenomena in solar eruptions, especially in CME events, it is very likely that they represent a universal agent that can link consecutive eruptions nearby with sympathetic eruptions.},
doi = {10.1088/0004-637X/738/2/179; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)},
journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 738,
place = {United States},
year = {2011},
month = {9}
}