NAOC Open IR
Detection of Flare-associated CME Candidates on Two M-dwarfs by GWAC and Fast, Time-resolved Spectroscopic Follow-ups
Wang, J.1,2; Xin, L. P.2; Li, H. L.2; Li, G. W.2; Sun, S. S.1,2,3; Gao, C.1,2,3; Han, X. H.2; Dai, Z. G.4; Liang, E. W.1; Wang, X. Y.4; Wei, J. Y.2,3
2021-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume916Issue:2Pages:12
AbstractThe flare-associated stellar coronal mass ejections (CMEs) of solar-like and late-type stars profoundly impact the habitability of any expolanets in the systems. In this paper, we report the detection of flare-associated CMEs for two M-dwarfs, thanks to a high-cadence survey carried out by the Ground Wide-angle Camera system and fast photometric and spectroscopic follow-ups. The flare energies in the R band are determined to be 1.6 x 10(35) erg and 8.1 x 10(33) erg based on modeling of their light curves. The time-resolved spectroscopic observations start at about 20 and 40 minutes after the trigger in both cases. The large projected maximum velocity of similar to 500-700 km s(-1) suggests that the high-velocity wings of their H alpha emission lines most likely result from CME events in both stars, after excluding the possibility of chromospheric evaporation and coronal rain. The masses of the CMEs are estimated to be 1.5-4.5 x 10(19) g and 7.1 x 10(18) g.
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
DOI10.3847/1538-4357/ac096f
WOS KeywordSEQUENCE STAR CHROMOSPHERES ; X-RAY EMISSION ; MAGNETIC RECONNECTION ; MASS EJECTIONS ; SOLAR-FLARES ; STELLAR ; HYDROGEN ; DYNAMICS ; SPECTRA ; BALMER
Language英语
Funding ProjectNational Key R&D Program of China[2020YFE0202100] ; National Natural Science Foundation of China[11773036] ; National Natural Science Foundation of China[U1821207] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15052600] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15016500] ; Natural Science Foundation of Guangxi[2020GXNSFDA238018] ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Natural Science Foundation of Guangxi ; Natural Science Foundation of Guangxi ; Bagui Young Scholars Program ; Bagui Young Scholars Program ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000680662200001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75958
Collection中国科学院国家天文台
Corresponding AuthorWang, J.
Affiliation1.Guangxi Univ, Sch Phys Sci & Technol, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China
2.Chinese Acad Sci, Key Lab Space Astron & Technol, Natl Astron Observ, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China
Recommended Citation
GB/T 7714
Wang, J.,Xin, L. P.,Li, H. L.,et al. Detection of Flare-associated CME Candidates on Two M-dwarfs by GWAC and Fast, Time-resolved Spectroscopic Follow-ups[J]. ASTROPHYSICAL JOURNAL,2021,916(2):12.
APA Wang, J..,Xin, L. P..,Li, H. L..,Li, G. W..,Sun, S. S..,...&Wei, J. Y..(2021).Detection of Flare-associated CME Candidates on Two M-dwarfs by GWAC and Fast, Time-resolved Spectroscopic Follow-ups.ASTROPHYSICAL JOURNAL,916(2),12.
MLA Wang, J.,et al."Detection of Flare-associated CME Candidates on Two M-dwarfs by GWAC and Fast, Time-resolved Spectroscopic Follow-ups".ASTROPHYSICAL JOURNAL 916.2(2021):12.
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