通过MuSCAT2数据中的多颜色传递光度学验证至七颗TESS行星候选星
地球与行星天体物理
2025-05-23 v1
摘要
TESS任务通过监控整个天空中数百万颗恒星的亮度来搜索穿越型系外行星。M型行星主机是该任务的理想目标，因为其较小的尺寸和较低的温度使得更容易检测靠近或位于可居住带内的较小行星。此外，M星星之间的行星与恒星的亮度对比比例较小，这有助于准确测量行星的属性。本文报告了针对13颗围绕M型恒星的TESS系外行星候选星的验证分析。我们通过多颜色传递光度学分析（使用多种地面仪器：MuSCAT2、MuSCAT3和LCO-SINISTRO）、高空间分辨率观测以及TESS光度曲线来研究这些候选星的本质。我们报告了五个新的行星系统的验证：TOI-1883b、TOI-2274b、TOI2768b、TOI-4438b和TOI-5319b，以及对TOIs 2781b和5486b的行星本质的有力证据。我们还提出了 Neptune沙漠边界的经验定义。剩余的六个系统由于实际半径值与棕星区域重叠，或MuSCAT2光度曲线中存在色差，无法得到验证。
引用
@article{arxiv.2409.07400,
title = {Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data},
author = {A. Peláez-Torres and E. Esparza-Borges and E. Pallé and H. Parviainen and F. Murgas and G. Morello and M. R. Zapatero-Osorio and J. Korth and N. Narita and A. Fukui and I. Carleo and R. Luque and N. Abreu García and K. Barkaoui and A. Boyle and V. J. S. Béjar and Y. Calatayud-Borras and D. V. Cheryasov and J. L. Christiansen and D. R. Ciardi and G. Enoc and Z. Essack and I. Fukuda and G. Furesz and D. Galán and S. Geraldía-González and S. Giacalone and H. Gill and E. J. Gonzales and Y. Hayashi and K. Ikuta and K. Isogai and T. Kagetani and Y. Kawai and K. Kawauchi and P. Klagyvik and T. Kodama and N. Kusakabe and A. Laza-Ramos and J. P. de Leon and J. H. Livingston and M. B. Lund and A. Madrigal-Aguado and P. Meni and M. Mori and S. Muñoz Torres and J. Orell-Miquel and M. Puig and G. Ricker and M. Sánchez-Benavente and A. B. Savel and J. E. Schlieder and R. P. Schwarz and R. Sefako and P. Sosa-Guillén and M. Stangret and C. Stockdale and M. Tamura and Y. Terada and J. D. Twicken and N. Watanabe and J. Winn and S. G. Zheltoukhov and C. Ziegler and Y. Zou},
journal= {arXiv preprint arXiv:2409.07400},
year = {2025}
}