Search for planets in hot Jupiter systems with multi-sector TESS photometry. III. A study of ten systems enhanced with new ground-based photometry
| Autor: | Maciejewski, G., Fernández, M., Sota, A., Amado, P. J., Ohlert, J., Bischoff, R., Stenglein, W., Mugrauer, M., Michel, K. -U., Golonka, J., Solsona, A. Blanco, Lapena, E., Freire, J. Molins, Curieses, A. De los Ríos, Sicilia, J. A. Temprano |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.32023/0001-5237/73.1.4 |
| Popis: | 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. Comment: Accepted for publication in Acta Astronomica vol. 73 |
| Databáze: | arXiv |
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