Institutional Repository of Optical Astronomy Research Laboratory
| Characteristic time of stellar flares on Sun-like stars | |
Yan, Y.1,2,3,4; He, H.1,2,5; Li, C.4,6; Esamdin, A.5,7 ; Tan, B. L.1,2,5; Zhang, L. Y.8; Wang, H.3
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| 2021-07-01 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 505Issue:1Pages:L79-L83 |
| Contribution Rank | 7 |
| Abstract | Using the short-cadence data (1-min interval) of the Kepler space telescope, we conducted a statistical analysis for the characteristic time of stellar flares on Sun-like stars (SLS). Akin to solar flares, stellar flares show rise and decay lightcurve profiles, which reflect the two distinct phases (rise phase and decay phase) of the flare process. We derived characteristic times of the two phases for stellar flares of SLS, resulting in a median rise time of about 5.9 min and a median decay time of 22.6 min. It is found that both the rise time and the decay time of the stellar flares follow a lognormal distribution. The peak positions of the lognormal distributions for flare rise time and decay time are 3.5 min and 14.8 min, respectively. These time values for stellar flares are similar to the time-scale of solar flares, which supports the idea that stellar flares and solar flares have the same physical mechanism. The statistical results obtained in this work for SLS can be a benchmark of flare characteristic times when comparing with other types of stars. |
| Keyword | stars: activity stars: flare stars: solar-type |
| DOI | 10.1093/mnrasl/slab055 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | STATISTICAL PROPERTIES ; MAGNETIC ACTIVITY ; SOLAR ; KEPLER ; SUPERFLARES |
| Funding Project | National Natural Science Foundation of China[11693002] ; National Natural Science Foundation of China[11673012] ; National Natural Science Foundation of China[11973059] ; National Key R&D Program of China[2019YFA0405000] ; CAS ; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; CAS Strategic Pioneer Program on Space Science[XDA15052200] ; Astronomical Big Data Joint Research Center ; Alibaba Cloud ; 'Integration of Space-and Ground-based Instruments' project of the China National Space Administration ; NASA Science Mission Directorate ; NASA[NAS 5-26555] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000722248100005 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | National Natural Science Foundation of China ; National Key R&D Program of China ; CAS ; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; CAS Strategic Pioneer Program on Space Science ; Astronomical Big Data Joint Research Center ; Alibaba Cloud ; 'Integration of Space-and Ground-based Instruments' project of the China National Space Administration ; NASA Science Mission Directorate ; NASA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4378 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Yan, Y.; He, H. |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Solar Act, Beijing 100101, Peoples R China 3.New Jersey Inst Technol, Ctr Solar Terr Res, Newark, NJ 07102 USA 4.Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 8.Guizhou Univ, Coll Phys, Guiyang 550025, Peoples R China |
| Recommended Citation GB/T 7714 | Yan, Y.,He, H.,Li, C.,et al. Characteristic time of stellar flares on Sun-like stars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,505(1):L79-L83. |
| APA | Yan, Y..,He, H..,Li, C..,Esamdin, A..,Tan, B. L..,...&Wang, H..(2021).Characteristic time of stellar flares on Sun-like stars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(1),L79-L83. |
| MLA | Yan, Y.,et al."Characteristic time of stellar flares on Sun-like stars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.1(2021):L79-L83. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Yan-2021-Characteris（382KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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