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Spectroscopic and Stereoscopic Observations of the Solar Jets
Lu, Lei1; Feng, Li1; Li, Ying1; Li, Dong1,2; Ning, Zongjun1; Gan, Weiqun1
2019-12-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume887Issue:2Pages:13
Corresponding AuthorLi, Dong(lidong@pmo.ac.cn)
AbstractWe present a comprehensive study of a series of recurrent jets that occurred at the periphery of the NOAA active region 12114 on 2014 July 7. These jets were found to share the same source region and exhibited rotational motions as they propagated outward. The multiwavelength imaging observations made by the AIA and IRIS telescopes reveal that some of the jets contain cool plasma only, while some others contain not only cool but also hot plasma. The Doppler velocities calculated from the IRIS spectra show a continuous evolution from blue-to redshifts as the jet motions change from upward to downward. Additionally, some jets exhibit opposite Doppler shifts on both their sides, indicative of rotating motions along their axes. The inclination angle and three-dimensional velocity of the largest jet were inferred from the imaging and spectroscopic observations, which show high consistency with those derived from the stereoscopic analysis using dual-perspective observations by SDO/AIA and STEREO-B/EUVI. By relating the jets to the local UV/EUV and full-disk GOES X-ray emission enhancements, we found that the previous five small-scale jets were triggered by five bright points while the last/largest one was triggered by a C1.6 solar flare. Together with a number of type III radio bursts generated during the jet eruptions as well as a weak CME that was observed in association with the last jet, our observations provide evidence in support of multiscale magnetic reconnection processes being responsible for the production of jet events.
DOI10.3847/1538-4357/ab530c
WOS KeywordX-RAY JETS ; H-ALPHA SURGES ; SMALL-SCALE ; QUIET SUN ; MAGNETIC RECONNECTION ; HINODE OBSERVATIONS ; FILAMENT ERUPTIONS ; CORONAL JETS ; ALFVEN WAVES ; ACCELERATION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000506012000048
PublisherIOP PUBLISHING LTD
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35481
Collection中国科学院紫金山天文台
Corresponding AuthorLi, Dong
Affiliation1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210033, Peoples R China
2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Lu, Lei,Feng, Li,Li, Ying,et al. Spectroscopic and Stereoscopic Observations of the Solar Jets[J]. ASTROPHYSICAL JOURNAL,2019,887(2):13.
APA Lu, Lei,Feng, Li,Li, Ying,Li, Dong,Ning, Zongjun,&Gan, Weiqun.(2019).Spectroscopic and Stereoscopic Observations of the Solar Jets.ASTROPHYSICAL JOURNAL,887(2),13.
MLA Lu, Lei,et al."Spectroscopic and Stereoscopic Observations of the Solar Jets".ASTROPHYSICAL JOURNAL 887.2(2019):13.
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