CORONAL HEATING BY THE INTERACTION BETWEEN EMERGING ACTIVE REGIONS AND THE QUIET SUN OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY

	CORONAL HEATING BY THE INTERACTION BETWEEN EMERGING ACTIVE REGIONS AND THE QUIET SUN OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY
	Zhang, Jun1 ; Zhang, Bin 1,2; Li, Ting1 ; Yang, Shuhong1 ; Zhang, Yuzong1 ; Li, Leping1,3 ; Chen, Feng 3; Peter, Hardi 3
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2015-02-01
卷号	799 期号:2
关键词	magnetic reconnection Sun: activity Sun: atmosphere Sun: corona
英文摘要	The question of what heats the solar corona remains one of the most important puzzles in solar physics and astrophysics. Here we report Solar Dynamics Observatory Atmospheric Imaging Assembly observations of coronal heating by the interaction between emerging active regions (EARs) and the surrounding quiet Sun (QS). The EARs continuously interact with the surrounding QS, resulting in dark ribbons which appear at the boundary of the EARs and the QS. The dark ribbons visible in extreme-ultraviolet wavelengths propagate away from the EARs with speeds of a few km s(-1). The regions swept by the dark ribbons are brightening afterward, with the mean temperature increasing by one quarter. The observational findings demonstrate that uninterrupted magnetic reconnection between EARs and the QS occurs. When the EARs develop, the reconnection continues. The dark ribbons may be the track of the interface between the reconnected magnetic fields and the undisturbed QS's fields. The propagating speed of the dark ribbons reflects the reconnection rate and is consistent with our numerical simulation. A long-term coronal heating which occurs in turn from nearby the EARs to far away from the EARs is proposed.
收录类别	SCI
语种	英语
WOS记录号	WOS:000349315400013
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6636]
专题	国家天文台_太阳物理研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 2.Beijing Univ Technol, Pilot Coll, Beijing 101101, Peoples R China 3.Max Planck Inst Solar Syst Res MPS, D-37077 Gottingen, Germany
推荐引用方式 GB/T 7714	Zhang, Jun,Zhang, Bin,Li, Ting,et al. CORONAL HEATING BY THE INTERACTION BETWEEN EMERGING ACTIVE REGIONS AND THE QUIET SUN OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY[J]. ASTROPHYSICAL JOURNAL LETTERS,2015,799(2).
APA	Zhang, Jun.,Zhang, Bin.,Li, Ting.,Yang, Shuhong.,Zhang, Yuzong.,...&Peter, Hardi.(2015).CORONAL HEATING BY THE INTERACTION BETWEEN EMERGING ACTIVE REGIONS AND THE QUIET SUN OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY.ASTROPHYSICAL JOURNAL LETTERS,799(2).
MLA	Zhang, Jun,et al."CORONAL HEATING BY THE INTERACTION BETWEEN EMERGING ACTIVE REGIONS AND THE QUIET SUN OBSERVED BY THE SOLAR DYNAMICS OBSERVATORY".ASTROPHYSICAL JOURNAL LETTERS 799.2(2015).