KMS National Astronomical Observatories, CAS
| Spectroscopic observations of a flare-related coronal jet | |
| Zhang, Q. M.1,3; Huang, Z. H.2; Hou, Y. J.3,4; Li, D.3; Ning, Z. J.1; Wu, Z.2 | |
| 2021-03-17 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
 |
| ISSN | 0004-6361 |
| Volume | 647Pages:10 |
| Abstract | Context. Coronal jets are ubiquitous in active regions and coronal holes.Aims. In this paper, we study a coronal jet related to a C3.4 circular-ribbon flare in the active region 12434 on 2015 October 16.Methods. The flare and jet were observed in ultraviolet and extreme ultraviolet wavelengths by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory (SDO). The line-of-sight magnetograms of the photosphere were observed by the Helioseismic and Magnetic Imager on board SDO. The whole event was covered by the Interface Region Imaging Spectrograph during its imaging and spectroscopic observations. Soft X-ray fluxes of the flare were recorded by the GOES spacecraft. Hard X-ray (HXR) fluxes at 4-50 keV were obtained from observations of RHESSI and Fermi. Radio dynamic spectra of the flare were recorded by the ground-based stations belonging to the e-Callisto network.Results. Two minifilaments were located under a 3D fan-spine structure before flare. The flare was generated by the eruption of one filament. The kinetic evolution of the jet was divided into two phases: a slow rise phase at a speed of similar to 131 km s(-1) and a fast rise phase at a speed of similar to 363 km s(-1) in the plane-of-sky. The slow rise phase may correspond to the impulsive reconnection at the breakout current sheet. The fast rise phase may correspond to magnetic reconnection at the flare current sheet. The transition between the two phases occurred at similar to 09:00:40 UT. The blueshifted Doppler velocities of the jet in the SiIV 1402.80 angstrom line range from -34 to -120 km s(-1). The accelerated high-energy electrons are composed of three groups. Those propagating upward along the open field generate type III radio bursts, while those propagating downward produce HXR emissions and drive chromospheric condensation observed in the SiIV line. The electrons trapped in the rising filament generate a microwave burst lasting for <= 40 s. Bidirectional outflows at the base of jet are manifested by significant line broadenings of the SiIV line. The blueshifted Doppler velocities of outflows range from -13 to -101 km s(-1). The redshifted Doppler velocities of outflows range from similar to 17 to similar to 170 km s(-1).Conclusions. Our multiwavelength observations of the flare-related jet are in favor of the breakout jet model and are important for understanding the acceleration and transport of nonthermal electrons. |
| Keyword | line: profiles magnetic reconnection Sun: flares Sun: filaments prominences Sun: UV radiation |
| Funding Organization | NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories |
| DOI | 10.1051/0004-6361/202038924 |
| Language | 英语 |
| Funding Project | NSFC[11773079] ; NSFC[11790302] ; NSFC[U1831112] ; NSFC[11903050] ; NSFC[11790304] ; NSFC[11973092] ; NSFC[11573072] ; NSFC[11703017] ; International Cooperation and Interchange Program[11961131002] ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories[KLSA202003] ; National Astronomical Observatories[KLSA202006] ; Specialized Research Fund for State Key Laboratories |
| Funding Organization | NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; NSFC ; NSFC ; International Cooperation and Interchange Program ; International Cooperation and Interchange Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories ; National Astronomical Observatories ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000630014200006 |
| Publisher | EDP SCIENCES S A |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/78693 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Zhang, Q. M. |
| Affiliation | 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210023, Peoples R China 2.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr E, Weihai 264209, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Solar Activ, Natl Astron Observ, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Q. M.,Huang, Z. H.,Hou, Y. J.,et al. Spectroscopic observations of a flare-related coronal jet[J]. ASTRONOMY & ASTROPHYSICS,2021,647:10. |
| APA | Zhang, Q. M.,Huang, Z. H.,Hou, Y. J.,Li, D.,Ning, Z. J.,&Wu, Z..(2021).Spectroscopic observations of a flare-related coronal jet.ASTRONOMY & ASTROPHYSICS,647,10. |
| MLA | Zhang, Q. M.,et al."Spectroscopic observations of a flare-related coronal jet".ASTRONOMY & ASTROPHYSICS 647(2021):10. |
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