The Investigation of 84 TESS Totally Eclipsing Contact Binaries
Based on the eclipsing binary catalog provided by A. Prša et al., 84 totally eclipsing contact binaries with stable light curves were selected. The Transiting Exoplanet Survey Satellite light curves of these 84 targets were studied using the Physics Of Eclipsing Binaries code. The results indicate t...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astronomical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-3881/ade710 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850071449271795712 |
|---|---|
| author | Yani Guo Kai Li Liheng Wang Qiqi Xia Xiang Gao Jingran Xu Jingyi Wang |
| author_facet | Yani Guo Kai Li Liheng Wang Qiqi Xia Xiang Gao Jingran Xu Jingyi Wang |
| author_sort | Yani Guo |
| collection | DOAJ |
| description | Based on the eclipsing binary catalog provided by A. Prša et al., 84 totally eclipsing contact binaries with stable light curves were selected. The Transiting Exoplanet Survey Satellite light curves of these 84 targets were studied using the Physics Of Eclipsing Binaries code. The results indicate that there are 18 deep contact binaries, 39 moderate contact binaries, and 27 shallow contact binaries. Among them, 43 targets exhibit the O’Connell effect, which is attributed to the presence of star spot on the component’s surface. 15 targets are low-mass ratio deep contact binaries and may be contact binary merging candidates. Based on the relationship between the period and semimajor axis of contact binaries, their absolute physical parameters such as mass, radius, and luminosity were derived. The evolutionary status of these 84 targets was studied using the mass–luminosity and mass–radius relation diagrams. Their initial masses were also estimated. Our results are compared with those of targets that have been historically studied. Among the 84 targets, 44 targets have been studied before, and 21 of these have mass ratios q that are consistent with historical values within a 10% difference. For the inconsistent targets, we conducted a detailed investigation and found that the main reasons are poor quality of historical data, or the fact that the machine learning methods used in historical studies might not accurately determine the physical parameters for individual targets. |
| format | Article |
| id | doaj-art-ff3cb2473721451ab2d256ba350ecb65 |
| institution | DOAJ |
| issn | 1538-3881 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astronomical Journal |
| spelling | doaj-art-ff3cb2473721451ab2d256ba350ecb652025-08-20T02:47:18ZengIOP PublishingThe Astronomical Journal1538-38812025-01-01170211510.3847/1538-3881/ade710The Investigation of 84 TESS Totally Eclipsing Contact BinariesYani Guo0https://orcid.org/0009-0008-3792-6444Kai Li1https://orcid.org/0000-0003-3590-335XLiheng Wang2https://orcid.org/0009-0005-0485-418XQiqi Xia3Xiang Gao4https://orcid.org/0009-0009-6364-0391Jingran Xu5https://orcid.org/0000-0003-2477-3430Jingyi Wang6Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnShandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University , Weihai, Shandong, 264209, People’s Republic of China ; kaili@sdu.edu.cnBased on the eclipsing binary catalog provided by A. Prša et al., 84 totally eclipsing contact binaries with stable light curves were selected. The Transiting Exoplanet Survey Satellite light curves of these 84 targets were studied using the Physics Of Eclipsing Binaries code. The results indicate that there are 18 deep contact binaries, 39 moderate contact binaries, and 27 shallow contact binaries. Among them, 43 targets exhibit the O’Connell effect, which is attributed to the presence of star spot on the component’s surface. 15 targets are low-mass ratio deep contact binaries and may be contact binary merging candidates. Based on the relationship between the period and semimajor axis of contact binaries, their absolute physical parameters such as mass, radius, and luminosity were derived. The evolutionary status of these 84 targets was studied using the mass–luminosity and mass–radius relation diagrams. Their initial masses were also estimated. Our results are compared with those of targets that have been historically studied. Among the 84 targets, 44 targets have been studied before, and 21 of these have mass ratios q that are consistent with historical values within a 10% difference. For the inconsistent targets, we conducted a detailed investigation and found that the main reasons are poor quality of historical data, or the fact that the machine learning methods used in historical studies might not accurately determine the physical parameters for individual targets.https://doi.org/10.3847/1538-3881/ade710Close binary starsEclipsing binary starsContact binary starsMass ratioStellar evolution |
| spellingShingle | Yani Guo Kai Li Liheng Wang Qiqi Xia Xiang Gao Jingran Xu Jingyi Wang The Investigation of 84 TESS Totally Eclipsing Contact Binaries The Astronomical Journal Close binary stars Eclipsing binary stars Contact binary stars Mass ratio Stellar evolution |
| title | The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| title_full | The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| title_fullStr | The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| title_full_unstemmed | The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| title_short | The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| title_sort | investigation of 84 tess totally eclipsing contact binaries |
| topic | Close binary stars Eclipsing binary stars Contact binary stars Mass ratio Stellar evolution |
| url | https://doi.org/10.3847/1538-3881/ade710 |
| work_keys_str_mv | AT yaniguo theinvestigationof84tesstotallyeclipsingcontactbinaries AT kaili theinvestigationof84tesstotallyeclipsingcontactbinaries AT lihengwang theinvestigationof84tesstotallyeclipsingcontactbinaries AT qiqixia theinvestigationof84tesstotallyeclipsingcontactbinaries AT xianggao theinvestigationof84tesstotallyeclipsingcontactbinaries AT jingranxu theinvestigationof84tesstotallyeclipsingcontactbinaries AT jingyiwang theinvestigationof84tesstotallyeclipsingcontactbinaries AT yaniguo investigationof84tesstotallyeclipsingcontactbinaries AT kaili investigationof84tesstotallyeclipsingcontactbinaries AT lihengwang investigationof84tesstotallyeclipsingcontactbinaries AT qiqixia investigationof84tesstotallyeclipsingcontactbinaries AT xianggao investigationof84tesstotallyeclipsingcontactbinaries AT jingranxu investigationof84tesstotallyeclipsingcontactbinaries AT jingyiwang investigationof84tesstotallyeclipsingcontactbinaries |