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arXiv 2307.00538astro-ph.EP
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利用多扇区TESS测光在热木星系统中搜寻行星。III. 结合新地基测光的十个系统研究

Search for planets in hot Jupiter systems with multi-sector TESS photometry. III. A study of ten systems enhanced with new ground-based photometry

G. Maciejewski, M. Fernández, A. Sota, P. J. Amado, J. Ohlert, R. Bischoff, W. Stenglein, M. Mugrauer, K. -U. Michel, J. Golonka, A. Blanco Solsona, E. Lapena, … 展开作者

G. Maciejewski, M. Fernández, A. Sota, P. J. Amado, J. Ohlert, R. Bischoff, W. Stenglein, M. Mugrauer, K. -U. Michel, J. Golonka, A. Blanco Solsona, E. Lapena, J. Molins Freire, A. De los Ríos Curieses, J. A. Temprano Sicilia

AI总结:

本文利用TESS多扇区测光与地基光变曲线,研究10个热木星系统,未发现近距低质量行星,重新测定凌星参数,否决HAT-P-12 b的凌星计时变化,并对第三天体施加更严格约束。

摘要:

热木星的孤独性支持了高偏心率迁移作为形成这类行星系统的主要路径,这些行星缺乏任何近距行星伴星。本文报告了在10个行星系统(HAT-P-4, HAT-P-10, HAT-P-12, HAT-P-17, HAT-P-19, HAT-P-32, HAT-P-44, Qatar-6, TrES-4和WASP-48)中搜寻热木星近距低质量行星的零结果。我们利用凌星系外行星巡天卫星(TESS)的多扇区时间序列测光数据,并结合新的地基凌星光变曲线,确定了可能仍未被探测到的假想行星的尺寸边界。我们采用均匀方法重新确定了已知热木星的凌星参数。我们否决了近期文献中声称的HAT-P-12 b的凌星计时变化。凌星计时数据使我们对多普勒测量中探测到的HAT-P-19和HAT-P-32系统中的第三天体施加了更严格的约束。我们还研究了HAT-P-17周围场区内的4颗多周期脉动变星。

英文摘要:

The loneliness of hot Jupiters supports the high-eccentricity migration as a primary path leading to the formation of systems with those planets stripped of any close-in planetary companions. Here we present the null results of searches for low-mass planets close to hot Jupiters in 10 planetary systems: HAT-P-4, HAT-P-10, HAT-P-12, HAT-P-17, HAT-P-19, HAT-P-32, HAT-P-44, Qatar-6, TrES-4, and WASP-48. We employed multi-sector time-series photometry from the Transiting Exoplanet Survey Satellite enhanced with new ground-based transit light curves to determine the sizes of hypothetical planets that might still avoid being detected. We redetermined transit parameters for the known hot Jupiters using a homogenous approach. We refuted transit timing variations for HAT-P-12 b, claimed recently in the literature. The transit timing data permitted us to place tighter constraints on third bodies in HAT-P-19 and HAT-P-32 systems detected in Doppler measurements. We also study four multi-periodic pulsating variable stars in the field around HAT-P-17.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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