Looking for timing variations in the transits of 16 exoplanets
Özet
We update the ephemerides of 16 transiting exoplanets using our ground-based observations, new TESS data, and previously published observations including those of amateur astronomers. All these light curves were modeled by making use of a set of quantitative criteria with the EXOFAST code to obtain mid-transit times. We searched for statistically significant secular and/or periodic trends in the mid-transit times. We found that the timing data are well modeled by a linear ephemeris for all systems except for XO-2 b, for which we detect an orbital decay with the rate of -12.95 ± 1.85 ms/yr that can be confirmed with future observations. We also detect a hint of potential periodic variations in the TTV data of HAT-P-13 b which also requires confirmation with further precise observations.
Atıf için künye
Esmer, E. M., Baştürk, Ö., Muhaymin, A., Kutluay, A. C., Silistre, D. İ., Akar, F., Southworth, J., Mancini, L., Davoudi, F., Karamanlı, E., Tezcan, F., Demir, E., Yılmaz, D., Güleroğlu, E., Tekin, M., Taşkın, İ., Aladağ, Y., Sertkan, E., Kurt, U. Y., … Yeşilyaprak, C. (2024). Looking for timing variations in the transits of 16 exoplanets. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 0(0), 0. https://doi.org/10.1093/mnras/stae854
BibTeX
@article{esmer2024-61799,
author = {Esmer, E. M. and Baştürk, Özgür and Muhaymin, Abdul and Kutluay, Ahmet Cem and Silistre, D. İ. and Akar, F. and Southworth, John and Mancini, Luigi and Davoudi, F. and Karamanlı, E. and Tezcan, Fatma and Demir, E. and Yılmaz, D. and Güleroğlu, E. and Tekin, M. and Taşkın, İ. and Aladağ, Y. and Sertkan, E. and Kurt, U. Y. and Fişek, Süleyman and Kaptan, Seda and Aksaker, Nazım and Tezcan, Cihan Tuğrul and Kaya, A. and Oğlakkaya, D. and Aydın, Z. S. and Yeşilyaprak, Cahit},
title = {Looking for timing variations in the transits of 16 exoplanets},
journal = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
year = {2024},
volume = {0},
number = {0},
issn = {0035-8711},
doi = {10.1093/mnras/stae854},
url = {https://akademik.atauni.edu.tr/yayinlar/61799-looking-for-timing-variations-in-the-transits-of-16-exoplanets}
}