NAOC Open IR
Doppler shift oscillations of a sunspot detected by CYRA and IRIS
Li, D.1,2,3; Yang, X.4,6; Bai, X. Y.2; Su, J. T.2,5; Ning, Z. J.1; Cao, W.4,6; Deng, Y. Y.2,5
2020-10-23
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume642Pages:8
AbstractContext. The carbon monoxide (CO) molecular line at around 46655 angstrom in solar infrared spectra is often used to investigate the dynamic behavior of the cold heart of the solar atmosphere, i.e., sunspot oscillation, especially at the sunspot umbra.Aims. We investigated sunspot oscillation at Doppler velocities of the CO 7-6 R67 and 3-2 R14 lines that were measured by the Cryogenic Infrared Spectrograph (CYRA), as well as the line profile of MgII k line that was detected by the Interface Region Imaging Spectrograph (IRIS).Methods. A single Gaussian function is applied to each CO line profile to extract the line shift, while the moment analysis method is used for the MgII k line. Then the sunspot oscillation can be found in the time-distance image of Doppler velocities, and the quasi-periodicity at the sunspot umbra are determined from the wavelet power spectrum. Finally, the cross-correlation method is used to analyze the phase relation between different atmospheric levels.Results. At the sunspot umbra, a periodicity of roughly 5 min is detected at the Doppler velocity range of the CO 7-6 R67 line that formed in the photosphere, while a periodicity of around 3 min is discovered at the Doppler velocities of CO 3-2 R14 and MgII k lines that formed in the upper photosphere or the temperature minimum region and the chromosphere. A time delay of about 2 min is measured between the strong CO 3-2 R14 line and the MgII k line.Conclusions. Based on the spectroscopic observations from the CYRA and IRIS, the 3 min sunspot oscillation can be spatially resolved in the Doppler shifts. It may come from the upper photosphere or the temperature minimum region and then propagate to the chromosphere, which might be regarded as a propagating slow magnetoacoustic wave.
Keywordsunspots Sun: oscillations Sun: infrared Sun: UV radiation line: profiles
Funding OrganizationUS NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
DOI10.1051/0004-6361/202039007
WOS KeywordSOLAR CARBON-MONOXIDE ; UMBRAL OSCILLATIONS ; PHOTOELECTRIC OBSERVATIONS ; PENUMBRAL WAVES ; HIGH-RESOLUTION ; 165 BC ; CO ; LIGHT ; MAGNETOCONVECTION ; SPECTROSCOPY
Language英语
Funding ProjectUS NSF grant[AGS 1821294] ; NJIT ; Korea Astronomy and Space Science Institute ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC[11973092] ; NSFC[11427901] ; NSFC[11773038] ; NSFC[11873062] ; NSFC[11790300] ; NSFC[11790302] ; NSFC[11729301] ; NSFC[11873095] ; NSFC[12073081] ; Youth Fund of Jiangsu[BK20171108] ; National Natural Science Foundation of China[U1731241] ; Strategic Priority Research Program on Space Science, CAS[XDA15052200] ; Strategic Priority Research Program on Space Science, CAS[XDA15320301] ; CAS Key Laboratory of Solar Activity[KLSA202003] ; Specialized Research Fund for State Key Laboratories[2010DP173032]
Funding OrganizationUS NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; US NSF grant ; US NSF grant ; NJIT ; NJIT ; Korea Astronomy and Space Science Institute ; Korea Astronomy and Space Science Institute ; Seoul National University ; Seoul National University ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activities of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; Operation, Maintenance and Upgrading Fund of CAS for Astronomical Telescopes and Facility Instruments ; NSFC ; NSFC ; Youth Fund of Jiangsu ; Youth Fund of Jiangsu ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000586587400001
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80820
Collection中国科学院国家天文台
Corresponding AuthorLi, D.; Bai, X. Y.
Affiliation1.Chinese Acad Sci, Key Lab Dark Matter & Space Sci, Purple Mt Observ, Nanjing 210033, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
3.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China
4.New Jersey Inst Technol, Big Bear Solar Observ, Big Bear City, CA 92314 USA
5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
6.New Jersey Inst Technol, Ctr Solar Terr Res, 323 Martin Luther King Blvd, Newark, NJ 07102 USA
Recommended Citation
GB/T 7714
Li, D.,Yang, X.,Bai, X. Y.,et al. Doppler shift oscillations of a sunspot detected by CYRA and IRIS[J]. ASTRONOMY & ASTROPHYSICS,2020,642:8.
APA Li, D..,Yang, X..,Bai, X. Y..,Su, J. T..,Ning, Z. J..,...&Deng, Y. Y..(2020).Doppler shift oscillations of a sunspot detected by CYRA and IRIS.ASTRONOMY & ASTROPHYSICS,642,8.
MLA Li, D.,et al."Doppler shift oscillations of a sunspot detected by CYRA and IRIS".ASTRONOMY & ASTROPHYSICS 642(2020):8.
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