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Diagnostics of the Prominence Plasma from Ha and MgII Spectral Observations

文献类型：期刊论文

作者Ruan, Gulping1,2,3,4; Jejcic, Sonja5,6,7; Schmieder, Brigitte3; Mein, Pierre3; Mein, Nicole3; Heinzel, Petr7; Gunar, Stanislav3,7; Chen, Yao1,2
刊名ASTROPHYSICAL JOURNAL
出版日期2019-12-01
卷号886期号:2页码:14
关键词radiative transfer Sun: filaments prominences techniques: imaging spectroscopy
ISSN号0004-637X
DOI10.3847/1538-4357/ab4b50
英文摘要The goal of this paper is to derive the physical conditions of the prominence observed on 2017 March 30. To do so, we use a unique set of data in Mg II lines obtained with the space-borne Interface Region Imaging Spectrograph (IRIS) and in H alpha line with the ground-based Multi-Channel Subtractive Double Pass spectrograph operating at the Meudon solar tower. Here, we analyze the prominence spectra of Mg II h and k lines, and the H alpha line in the part of the prominence which is visible in both sets of lines. We compute a grid of 1D NLTE (i.e., departures from the local thermodynamical equilibrium) models providing synthetic spectra of Mg II k and h, and Ha lines in a large space of model input parameters (temperature, density, pressure, and microturbulent velocity). We compare Mg II and Ha line profiles observed in 75 positions of the prominence with the synthetic profiles from the grid of models. These models allow us to compute the relationships between the integrated intensities and between the optical thickness in Ha and Mg II k lines. The optical thickness tau(H alpha) is between 0.05 and 2, and tau(Mg) (IIk) is between 3 and 200. We show that the relationship of the observed integrated intensities agrees well with the synthetic integrated intensities for models with a higher microturbulence (16 km s(-1)) and T around 8000 K, ne = 1.5 x 10(10) cm(-3), p = 0.05 dyne. In this case, large microturbulence values could be a way to take into account the large mixed velocities existing in the observed prominence.
WOS关键词FINE-STRUCTURES ; MAGNETIC EQUILIBRIUM ; SPECTROGRAPH ; PROFILES ; MODELS
资助项目NNSFC[U1831107] ; NNSFC[41774180] ; NNSFC[41331068] ; NNSFC[11790303(11790300)] ; Provincial Natural Science Foundation of Shandong[ZR2018MA031] ; CSC scholarship ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS)[KLSA201602] ; Slovenian Research Agency[P1-0188] ; Czech Funding Agency[19-17102S] ; Czech Science Foundation (GACR)[19-16890S] ; Astronomical Institute of the Czech Academy of Sciences[RVO:67985815] ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; LESIA at the Observatoire de Paris
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000515070100012
出版者IOP PUBLISHING LTD
资助机构NNSFC ; NNSFC ; Provincial Natural Science Foundation of Shandong ; Provincial Natural Science Foundation of Shandong ; CSC scholarship ; CSC scholarship ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Slovenian Research Agency ; Slovenian Research Agency ; Czech Funding Agency ; Czech Funding Agency ; Czech Science Foundation (GACR) ; Czech Science Foundation (GACR) ; Astronomical Institute of the Czech Academy of Sciences ; Astronomical Institute of the Czech Academy of Sciences ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; LESIA at the Observatoire de Paris ; LESIA at the Observatoire de Paris ; NNSFC ; NNSFC ; Provincial Natural Science Foundation of Shandong ; Provincial Natural Science Foundation of Shandong ; CSC scholarship ; CSC scholarship ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Slovenian Research Agency ; Slovenian Research Agency ; Czech Funding Agency ; Czech Funding Agency ; Czech Science Foundation (GACR) ; Czech Science Foundation (GACR) ; Astronomical Institute of the Czech Academy of Sciences ; Astronomical Institute of the Czech Academy of Sciences ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; LESIA at the Observatoire de Paris ; LESIA at the Observatoire de Paris ; NNSFC ; NNSFC ; Provincial Natural Science Foundation of Shandong ; Provincial Natural Science Foundation of Shandong ; CSC scholarship ; CSC scholarship ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Slovenian Research Agency ; Slovenian Research Agency ; Czech Funding Agency ; Czech Funding Agency ; Czech Science Foundation (GACR) ; Czech Science Foundation (GACR) ; Astronomical Institute of the Czech Academy of Sciences ; Astronomical Institute of the Czech Academy of Sciences ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; LESIA at the Observatoire de Paris ; LESIA at the Observatoire de Paris ; NNSFC ; NNSFC ; Provincial Natural Science Foundation of Shandong ; Provincial Natural Science Foundation of Shandong ; CSC scholarship ; CSC scholarship ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Key Laboratory of Solar Activity of the Chinese Academy of Sciences (CAS) ; Slovenian Research Agency ; Slovenian Research Agency ; Czech Funding Agency ; Czech Funding Agency ; Czech Science Foundation (GACR) ; Czech Science Foundation (GACR) ; Astronomical Institute of the Czech Academy of Sciences ; Astronomical Institute of the Czech Academy of Sciences ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; Observatoire de Paris through its "Postes Temporairement Vacants" programme ; LESIA at the Observatoire de Paris ; LESIA at the Observatoire de Paris
源URL[http://ir.bao.ac.cn/handle/114a11/54314]  
专题中国科学院国家天文台
通讯作者Ruan, Gulping
作者单位1.Shandong Univ, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China
2.Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China
3.Univ Paris 06, CNRS Sorbonne Univ, PSL Res Univ, LESIA,Observ Paris,Univ Paris Diderot,Sorbonne Pa, 5 Pl Jules Janssen, F-92195 Meudon, France
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
5.Univ Ljubljana, Fac Educ, Kardeljeva Ploscad 16, Ljubljana 1000, Slovenia
6.Univ Ljubljana, Fac Math & Phys, Jadranska 19, Ljubljana 1000, Slovenia
7.Czech Acad Sci, Astron Inst, Ondrejov 25165, Czech Republic
推荐引用方式
GB/T 7714		 Ruan, Gulping,Jejcic, Sonja,Schmieder, Brigitte,et al. Diagnostics of the Prominence Plasma from Ha and MgII Spectral Observations[J]. ASTROPHYSICAL JOURNAL,2019,886(2):14.
APA Ruan, Gulping.,Jejcic, Sonja.,Schmieder, Brigitte.,Mein, Pierre.,Mein, Nicole.,...&Chen, Yao.(2019).Diagnostics of the Prominence Plasma from Ha and MgII Spectral Observations.ASTROPHYSICAL JOURNAL,886(2),14.
MLA Ruan, Gulping,et al."Diagnostics of the Prominence Plasma from Ha and MgII Spectral Observations".ASTROPHYSICAL JOURNAL 886.2(2019):14.

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