Two Potential Exoplanets around A-type Stars Selected from 18 Planetary Candidates
文献类型：期刊论文
| 作者 | Luo YF(罗一帆)1,2; Liao WP(廖文萍)1,2; Qian, Sheng-Bang3; Lin, Wen-Xu3; Zhu LY(朱俐颖)1,2 |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2026-03-02 |
| 卷号 | 171期号:3 |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/ae3a88 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | We screen and analyze exoplanet candidates around A-type stars (defined as T-eff between 7500 and 10,000 K) observed by the Transiting Exoplanet Survey Satellite to evaluate their likelihood of being genuine exoplanets. Our analysis involves transit signal searches, light-curve detrending, estimation of nearby-source contamination, and calculation of false-positive probabilities (FPPs). Among the 18 candidates analyzed, four exhibit relatively low FPP values (<15%). Two candidates are excluded from further analysis due to the lack of stellar parameter data. Six candidates show no clearly detectable transit signals, likely due to shallow or weak features, while six candidates exhibit relatively high FPP values, leaving their authenticity uncertain. Among the four low-FPP targets, two-TIC 48031665 and TIC 259230140-stand out as the most promising. TIC 48031665 shows a very shallow transit signal but has a very low FPP and minimal nearby starlight contamination. TIC 259230140 displays a clear U-shaped transit light curve typical of planetary transits, along with slightly higher yet still low FPP and contamination levels. These two objects are therefore considered the most promising candidates identified in this study. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | EXTRASOLAR GIANT PLANETS ; TESS DISCOVERY ; PERIOD PLANETS ; VELOCITIES |
| 资助项目 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)[202501AS070055]; MOST divided by National Natural Science Foundation of China (NSFC)[12573038] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001688314600001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)[202501AS070055] ; MOST divided by National Natural Science Foundation of China (NSFC)[12573038] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28922]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 通讯作者 | Liao WP(廖文萍) |
| 作者单位 | 1.University of Chinese Academy of Sciences, No.1 Yanqihu East Rd, Huairou District, Beijing, 101408, People’s Republic of China; 2.Yunnan Observatories, Chinese Academy of Sciences (CAS), 650216, Kunming, People’s Republic of China; liaowp@ynao.ac.cn; 3.School of Physics and Astronomy, Yunnan University, Kunming 650091, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Luo YF,Liao WP,Qian, Sheng-Bang,et al. Two Potential Exoplanets around A-type Stars Selected from 18 Planetary Candidates[J]. ASTRONOMICAL JOURNAL,2026,171(3). |
| APA | 罗一帆,廖文萍,Qian, Sheng-Bang,Lin, Wen-Xu,&朱俐颖.(2026).Two Potential Exoplanets around A-type Stars Selected from 18 Planetary Candidates.ASTRONOMICAL JOURNAL,171(3). |
| MLA | 罗一帆,et al."Two Potential Exoplanets around A-type Stars Selected from 18 Planetary Candidates".ASTRONOMICAL JOURNAL 171.3(2026). |
入库方式： OAI收割
来源：云南天文台
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