New transit timing observations for GJ 436 b, HAT-P-3 b, HAT-P-19 b, WASP-3 b, and XO-2 b

Abstract

We present new transit observations acquired between 2014 and 2018 for the hot exoplanets GJ 436 b, HAT-P-3 b, HAT-P-19 b, WASP-3 b, and XO-2 b. New mid-transit times extend the timespan covered by observations of these exoplanets and allow us to refine their transit ephemerides. All new transits are consistent with linear ephemerides.

arXiv commentAccepted for publication in the Information Bulletin on Variable Stars, Article No. 6243 in Vol. 63

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• Visible-light Phase Curves from the Second Year of the TESS Primary Mission
• ExoClock Project: An open platform for monitoring the ephemerides of Ariel targets with contributions from the public
• Evidence of Long-Term Period Variations in the Exoplanet Transit Database (ETD)
• Looking For Timing Variations in the Transits of 16 Exoplanets
• A Holistic and Probabilistic Approach to the Ground-based Data of HAT-P-19 System
• Simultaneous multicolour transit photometry of hot Jupiters HAT-P-19b, HAT-P-51b, HAT-P-55b, and HAT-P-65b