NUMERICAL SIMULATIONS OF CHROMOSPHERIC ANEMONE JETS ASSOCIATED WITH   MOVING MAGNETIC FEATURES

doi:10.1088/0004-637X/777/1/16

CORC > 北京大学 > 地球与空间科学学院

	NUMERICAL SIMULATIONS OF CHROMOSPHERIC ANEMONE JETS ASSOCIATED WITH MOVING MAGNETIC FEATURES
	Yang, Liping ; He, Jiansen ; Peter, Hardi ; Tu, Chuanyi ; Zhang, Lei ; Feng, Xueshang ; Zhang, Shaohua
刊名	astrophysical journal
	2013
关键词	magnetic reconnection shock waves Sun: chromosphere X-RAY JETS SOLAR-WIND ACCELERATION CA II SPECTROHELIOGRAPH ALFVEN WAVES MAGNETOHYDRODYNAMIC SIMULATIONS CORONAL FUNNELS RECONNECTION MODEL DRIVEN EMERGENCE
DOI	10.1088/0004-637X/777/1/16
英文摘要	Observations with the space-based solar observatory Hinode show that small-scale magnetic structures in the photosphere are found to be associated with a particular class of jets of plasma in the chromosphere called anemone jets. The goal of our study is to conduct a numerical experiment of such chromospheric anemone jets related to the moving magnetic features (MMFs). We construct a 2.5 dimensional numerical MHD model to describe the process of magnetic reconnection between the MMFs and the pre-existing ambient magnetic field, which is driven by the horizontal motion of the magnetic structure in the photosphere. We include thermal conduction parallel to the magnetic field and optically thin radiative losses in the corona to account for a self-consistent description of the evaporation process during the heating of the plasma due to the reconnection process. The motion of the MMFs leads to the expected jet and our numerical results can reproduce many observed characteristics of chromospheric anemone jets, topologically and quantitatively. As a result of the tearing instability, plasmoids are generated in the reconnection process that are consistent with the observed bright moving blobs in the anemone jets. An increase in the thermal pressure at the base of the jet is also driven by the reconnection, which induces a train of slow-mode shocks propagating upward. These shocks are a secondary effect, and only modulate the outflow of the anemone jet. The jet itself is driven by the energy input due to the reconnection of the MMFs and the ambient magnetic field.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000326147300016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Astronomy & Astrophysics; SCI(E); 10; ARTICLE; 1; 777
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/311063]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Yang, Liping,He, Jiansen,Peter, Hardi,et al. NUMERICAL SIMULATIONS OF CHROMOSPHERIC ANEMONE JETS ASSOCIATED WITH MOVING MAGNETIC FEATURES[J]. astrophysical journal,2013.
APA	Yang, Liping.,He, Jiansen.,Peter, Hardi.,Tu, Chuanyi.,Zhang, Lei.,...&Zhang, Shaohua.(2013).NUMERICAL SIMULATIONS OF CHROMOSPHERIC ANEMONE JETS ASSOCIATED WITH MOVING MAGNETIC FEATURES.astrophysical journal.
MLA	Yang, Liping,et al."NUMERICAL SIMULATIONS OF CHROMOSPHERIC ANEMONE JETS ASSOCIATED WITH MOVING MAGNETIC FEATURES".astrophysical journal (2013).