TY  - JOUR
T1  - Analysis of HAT-P-16b and TrES-3b Exoplanets by the Transit Timing Variations Method
AU  - Aladağ, Yasemin
AU  - Akyüz, Aysun
AU  - Baştürk, Özgür
AU  - Aksaker, Nazım
AU  - Esmer, Ekrem Murat
AU  - Yalçınkaya, Selçuk
PY  - 2021
DA  - June
Y2  - 2021
JF  - Turkish Journal of Astronomy and Astrophysics
JO  - TJAA
PB  - Türk Astronomi Derneği
WT  - DergiPark
SN  - 2757-7295
SP  - 28
EP  - 37
VL  - 2
IS  - 1
LA  - en
AB  - In this study, the transit observations of HAT-P-16b and TrES-3b exoplanets were carried out at ÇÜ UZAYMER Observatory with a 50 cm Ritchey Chretien type telescope. By analyzing the light curves of both exoplanets, system parameters have been obtained with acceptable models. Some of these parameters for HAT-P-16 systems were found to be: MP =4.172±0.163 MJ , RP =1.309±0.111 RJ , a/R=7.1922±0.0017 and b=0.1003±0.1533 which are consistent with the values given in Buchhave et al. (2010). Also, for the TrES-3 system, the same parameters were calculated as MP =1.959±0.111 MJ , RP =1.320±0.169 RJ , a/R=6.0656± 0.4899 and b=0.7892±0.0700. These values are also consistent with the values given in O’Donovan et al. (2007). No significant Transit Timing Variations (TTV) was found as a result of the Lomb-Scargle (LS) periodogram for HAT-P-16b by using the transit times obtained from the transit light curves (False Alarm Probabilities – FAP) = %96) . However, a significant periodicity was found at 32.38 days and a secondary periodicity was found at 41.07 days were determined as a result of the LS periodogram obtained from the TrES-3b data. We interpret that these periods with FAP of 3.41 % and 1.88 %, respectively, are close to the rotation period of the host star. Therefore, these periods could be due to the modulation of spot-induced light variations.
KW  - planets and satellites: individual: HAT-P-16b and TrES-3b
KW  - planetary systems
KW  - methods: observational
KW  - techniques: photometric
KW  - methods: data analysis
CR  - Agol E., Steffen J., Sari R., Clarkson W., 2005, MNRAS, 359, 567
CR  - Aladag Y., 2021, Master’s thesis, ÇÜ FBE Astronomi ve Astrofizik, Çukurova University
CR  - Bastürk Ö., Hinse T. C., Özavcı I., Yörükoˇglu O., Selam S. O., 2015, in Rucinski S. M., Torres G., Zejda M., eds, Astronomical Society of the Pacific Conference Series Vol. 496, Living Together: Planets, Host Stars and Binaries. p. 370 (arXiv:1508.04500)
CR  - Bevington P. R., Robinson D. K., 1992, Data reduction and error analysis for the physical sciences, p.44. McGraw-Hill Education
CR  - Ciceri S., et al., 2013a, VizieR Online Data Catalog, pp J/A+A/557/A30
CR  - Colón K. D., Ford E. B., Lee B., Mahadevan S., Blake C. H., 2010, MNRAS, 408, 1494
CR  - Foreman-Mackey D., Hogg D. W., Lang D., Goodman J., 2013, PASP, 125, 306
CR  - Fulton B. J., Shporer A., Winn J. N., Holman M. J., Pál A., Gazak J. Z., 2011, The Astronomical Journal, 142, 84
CR  - Husnoo N., Pont F., Mazeh T., Fabrycky D., Hébrard G., Bouchy F., Shporer A., 2012, MNRAS, 422, 3151
CR  - Kundurthy P., Becker A. C., Agol E., Barnes R., Williams B., 2013, The Astrophysical Journal, 764, 8
UR  - https://dergipark.org.tr/tr/pub/tjaa/issue//935500
L1  - https://dergipark.org.tr/tr/download/article-file/1761585
ER  -