Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium
文献类型:期刊论文
作者 | Cao DT(曹东涛)1,2; Gu SH(顾盛宏)1,2,3; Ge, Jian4; Wang, Tinggui5; Zhou, Jilin6; Chang L(常亮)1,2; Wolter, U.7; Mittag, M.7; Schmitt, J. H. M. M.7; Perdelwitz, V.7 |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
出版日期 | 2019 |
卷号 | 482期号:1页码:988-998 |
ISSN号 | 0035-8711 |
关键词 | stars: activity binaries: spectroscopic stars: chromospheres circumstellar matter stars: flare stars: individual: SZ Psc |
DOI | 10.1093/mnras/sty2768 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | We present the results of time-resolved high-resolution spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star SZ Piscium (SZ Psc), obtained during two consecutive observing nights on 2011 October 24 and 25. Several optical chromospheric activity indicators are analysed using the spectral subtraction technique, which show the remarkably different behaviour between two nights. Gradually blue-shifted and strengthened excess absorption features presented in the series of the subtracted spectra (especially for the H alpha, He I D-3, and H beta lines), as a result of active stellar prominence that is rising its height along the line of our sight, was detected in the observations on October 24. This prominence activation event was probably associated with the subsequently occurred optical flare, and part of that flare decay phase was hunted in the observations on October 25. The flare was characterized by the prominent He I D-3 line emission, as well as stronger chromospheric emission in the H alpha, H beta, and other active lines. The gradual decay of flare was accompanied by an obviously developmental absorption feature in the blue wing of the H alpha and other active lines, which could be explained as cool post-flare loops which projected against the bright flare background. Therefore, a series of possibly associated magnetic activity phenomena, including flare-related prominence activation, optical flare, and post-flare loops, were detected during our observations. |
学科主题 | 天文学 ; 恒星与银河系 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
WOS关键词 | ACTIVE BINARY-SYSTEMS ; RAPIDLY ROTATING STARS ; SIMULTANEOUS H ALPHA ; X-RAY OBSERVATIONS ; CHROMOSPHERIC ACTIVITY ; CLOSE BINARIES ; DIFFERENTIAL ROTATION ; DOPPLER IMAGES ; MULTIWAVELENGTH ; EMISSION |
资助项目 | Chinese Academy of Sciences (CAS) ; People's Government of Yunnan Province ; Project Based Personnel Exchange Program (PPP) ; China Scholarship Council (CSC) ; German Academic Exchange Service (DAAD)[[2016] 6041] ; National Natural Science Foundation of China (NSFC)[10373023] ; National Natural Science Foundation of China (NSFC)[10773027] ; National Natural Science Foundation of China (NSFC)[11333006] ; CAS[KJCX2-YW-T24] ; CAS 'Light of West China' Program |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000454575300068 |
资助机构 | Chinese Academy of Sciences (CAS) ; People's Government of Yunnan Province ; Project Based Personnel Exchange Program (PPP) ; China Scholarship Council (CSC) ; German Academic Exchange Service (DAAD)[[2016] 6041] ; National Natural Science Foundation of China (NSFC)[10373023, 10773027, 11333006] ; CAS[KJCX2-YW-T24] ; CAS 'Light of West China' Program |
源URL | [http://ir.ynao.ac.cn/handle/114a53/18804] |
专题 | 云南天文台_系外行星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Cao DT(曹东涛); Gu SH(顾盛宏) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Department of Astronomy, University of Florida, Bryant Space Science Center, Gainesville, FL 32611, USA 5.Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China 6.Department of Astronomy and Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education, Nanjing University, Nanjing 210093, China 7.Hamburger Sternwarte, Universitat Hamburg, Hamburg 21029, Germany |
推荐引用方式 GB/T 7714 | Cao DT,Gu SH,Ge, Jian,et al. Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,482(1):988-998. |
APA | Cao DT.,Gu SH.,Ge, Jian.,Wang, Tinggui.,Zhou, Jilin.,...&Perdelwitz, V..(2019).Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,482(1),988-998. |
MLA | Cao DT,et al."Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 482.1(2019):988-998. |
入库方式: OAI收割
来源:云南天文台
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