Ligang Yu , Shaung Wang , Michel Raúl , Liyun Zhang
{"title":"通过四年观测对K2型双星V1393 Tau的综合研究","authors":"Ligang Yu , Shaung Wang , Michel Raúl , Liyun Zhang","doi":"10.1016/j.newast.2024.102330","DOIUrl":null,"url":null,"abstract":"<div><div>We carried out a low resolution spectrum, the first ground-based multi-color light curves (LCs) analysis, and Transiting Exoplanet Survey Satellite (TESS) data analysis for the binary V1393 Tau. We determined its spectral type of K2V and updated an orbital period 0.24738715 days. By the Wilson-Devinney program, we solved ten sets of light curves. From the <em>BVRcIc</em>-band <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mn>2022</mn><mo>.</mo><mn>11</mn></mrow></msub></mrow></math></span>, we obtained a mass ratio <span><math><mrow><mi>q</mi><mo>=</mo><mn>2</mn><mo>.</mo><mn>500</mn><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow></mrow></math></span> and a fill-out factor <span><math><mrow><mi>f</mi><mo>=</mo><mn>11</mn><mo>.</mo><mn>73</mn><mrow><mo>(</mo><mn>6</mn><mo>)</mo></mrow><mtext>%</mtext></mrow></math></span>, which implies that V1393 Tau is a W-type shallow-contact binary. We traced the spot migration and evolution through modeling light curves during the past four years. The spot’s size alternately becomes smaller or bigger, and its longitude intervenes between <span><math><mrow><mi>λ</mi><mo>=</mo><mn>82</mn><mo>.</mo><mn>3</mn><msup><mrow><mn>9</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> in <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mi>S</mi><mn>70</mn></mrow></msub></mrow></math></span> and <span><math><mrow><mn>102</mn><mo>.</mo><mn>5</mn><msup><mrow><mn>6</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> in <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mn>2022</mn><mo>.</mo><mn>10</mn></mrow></msub></mrow></math></span> except for <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mi>S</mi><mn>32</mn></mrow></msub></mrow></math></span>.</div></div>","PeriodicalId":54727,"journal":{"name":"New Astronomy","volume":"115 ","pages":"Article 102330"},"PeriodicalIF":1.9000,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A comprehensive study on the K2-type binary V1393 Tau in four-year observations\",\"authors\":\"Ligang Yu , Shaung Wang , Michel Raúl , Liyun Zhang\",\"doi\":\"10.1016/j.newast.2024.102330\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We carried out a low resolution spectrum, the first ground-based multi-color light curves (LCs) analysis, and Transiting Exoplanet Survey Satellite (TESS) data analysis for the binary V1393 Tau. We determined its spectral type of K2V and updated an orbital period 0.24738715 days. By the Wilson-Devinney program, we solved ten sets of light curves. From the <em>BVRcIc</em>-band <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mn>2022</mn><mo>.</mo><mn>11</mn></mrow></msub></mrow></math></span>, we obtained a mass ratio <span><math><mrow><mi>q</mi><mo>=</mo><mn>2</mn><mo>.</mo><mn>500</mn><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow></mrow></math></span> and a fill-out factor <span><math><mrow><mi>f</mi><mo>=</mo><mn>11</mn><mo>.</mo><mn>73</mn><mrow><mo>(</mo><mn>6</mn><mo>)</mo></mrow><mtext>%</mtext></mrow></math></span>, which implies that V1393 Tau is a W-type shallow-contact binary. We traced the spot migration and evolution through modeling light curves during the past four years. The spot’s size alternately becomes smaller or bigger, and its longitude intervenes between <span><math><mrow><mi>λ</mi><mo>=</mo><mn>82</mn><mo>.</mo><mn>3</mn><msup><mrow><mn>9</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> in <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mi>S</mi><mn>70</mn></mrow></msub></mrow></math></span> and <span><math><mrow><mn>102</mn><mo>.</mo><mn>5</mn><msup><mrow><mn>6</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> in <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mn>2022</mn><mo>.</mo><mn>10</mn></mrow></msub></mrow></math></span> except for <span><math><mrow><mi>L</mi><msub><mrow><mi>C</mi></mrow><mrow><mi>S</mi><mn>32</mn></mrow></msub></mrow></math></span>.</div></div>\",\"PeriodicalId\":54727,\"journal\":{\"name\":\"New Astronomy\",\"volume\":\"115 \",\"pages\":\"Article 102330\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-11-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Astronomy\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1384107624001441\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Astronomy","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1384107624001441","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
A comprehensive study on the K2-type binary V1393 Tau in four-year observations
We carried out a low resolution spectrum, the first ground-based multi-color light curves (LCs) analysis, and Transiting Exoplanet Survey Satellite (TESS) data analysis for the binary V1393 Tau. We determined its spectral type of K2V and updated an orbital period 0.24738715 days. By the Wilson-Devinney program, we solved ten sets of light curves. From the BVRcIc-band , we obtained a mass ratio and a fill-out factor , which implies that V1393 Tau is a W-type shallow-contact binary. We traced the spot migration and evolution through modeling light curves during the past four years. The spot’s size alternately becomes smaller or bigger, and its longitude intervenes between in and in except for .
期刊介绍：
New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation.
New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
