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追逐潮汐:在凌日时间数据和20颗热木星的潮汐模型中寻找轨道衰减迹象

Chasing the Tides: Searching for Orbital Decay Signatures in Transit Timing Data and Tidal Models for 20 Hot Jupiters

Keele University(基尔大学);Ankara University(安卡拉大学);University of Leeds(利兹大学)
A. C. Kutluay, Ö. Baştürk, Adrian J. Barker, S. Yalçınkaya, J. Southworth, S. O. Selam, Ö. Şimşir, K. Kaplan, F. Akar, İ. A. Ertürk, Z. Zengin, E. Akalın, V. Öz… 展开作者

A. C. Kutluay, Ö. Baştürk, Adrian J. Barker, S. Yalçınkaya, J. Southworth, S. O. Selam, Ö. Şimşir, K. Kaplan, F. Akar, İ. A. Ertürk, Z. Zengin, E. Akalın, V. Özsoy, Ö. Yaldır, D. İçöz, L. Mancini, B. Duru, F. Tezcan, A. Özfidan, U. Umar, A. Wünsche, M. J. Burgdorf, R. E. Cannon, R. J. Figuera Jaimes, T. C. Hinse, V. Okoth, J. T. Reed, E. S. Buğday, U. Akdere, Y. Turan, S. Aliş, C. T. Tezcan, F. K. Yelkenci, S. Hajarat

AI总结:

研究通过分析20颗热木星的凌日时间数据,发现部分系统存在轨道衰减或增长,揭示了潮汐作用对行星轨道演化的影响。

摘要:

在本工作中,我们对20个热木星系统进行了凌日时间变化分析,并用理论潮汐耗散模型进行解释。对于样本中的大多数系统,我们得出结论,恒定轨道周期模型最能代表时间数据。只有WASP-12 b、TrES-1 b和WASP-121 b显示出变化的轨道周期,根据最新结果。我们更新了WASP-12 b的轨道衰减率至$\dot{P} = -29.4 \pm 4.0 \mathrm{~ms~yr^{-1}}$,并相应的恒星潮汐质量因子为$Q_*^{\prime} = 1.72 \pm 0.18 \times 10^5$。对于TrES-1 b,中位数二次模型表明其轨道以$-14.9 \pm 0.6 \mathrm{~ms~yr^{-1}}$的速率减小,但相应的$Q_*^{\prime} = 570 \pm 60$与理论估计不符,后者由于内部重力波耗散建议$Q_*^{\prime} \sim 10^6$。最后,WASP-121 b表现出以$15.1 \pm 0.8 \mathrm{~ms~yr^{-1}}$的速率增长的轨道,理论结果支持由于强惯性波耗散导致的向外迁移。

英文摘要:

In this work, we present a transit timing variation analysis for 20 hot Jupiter systems, which we interpret with theoretical tidal dissipation models. For the majority of the sample, we conclude that a constant orbital period model represents the timing data best. Only WASP-12 b, TrES-1 b and WASP-121 b exhibit a changing orbital period, according to the most up-to-date results. We updated the orbital decay rate of WASP-12 b to $\dot{P} = -29.4 \pm 4.0 \mathrm{~ms~yr^{-1}}$ and the corresponding stellar tidal quality factor to $Q_*^{\prime} = 1.72 \pm 0.18 \times 10^5$. For TrES-1 b, the median quadratic model suggests a period decrease at a rate of $-14.9 \pm 0.6 \mathrm{~ms~yr^{-1}}$, but the corresponding $Q_*^{\prime} = 570 \pm 60$ does not agree with the theoretical estimates, which suggest $Q_*^{\prime} \sim 10^6$ due to internal gravity wave dissipation. Lastly, WASP-121 b exhibits orbital growth at a rate of $15.1 \pm 0.8 \mathrm{~ms~yr^{-1}}$, and theoretical results support outward migration due to strong inertial wave dissipation.

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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