Light Curve Analysis of Ground-Based Data from Exoplanets Transit Database

Abstract

Photometric observations of exoplanet transits can be used to derive the orbital and physical parameters of an exoplanet. We analyzed several transit light curves of exoplanets that are suitable for ground-based observations whose complete information is available on the Exoplanet Transit Database (ETD). We analyzed transit data of planets including HAT-P-8 b, HAT-P-16 b, HAT-P-21 b, HAT-P-22 b, HAT-P-28 b and HAT-P-30 b using the AstroImageJ (AIJ) software package. In this paper, we investigated 82 transit light curves from ETD, deriving their physical parameters as well as computing their mid-transit times for future Transit Timing Variation (TTV) analyses. The Precise values of the parameters show that using AIJ as a fitting tool for follow-up observations can lead to results comparable to the values at the NASA Exoplanet Archive (the NEA). Such information will be invaluable considering the numbers of future discoveries from the ground and space-based exoplanet surveys.

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• WASP-35 and HAT-P-30/WASP-51: re-analysis using TESS and ground-based transit photometry
• The study on transiting systems HAT-P-13, HAT-P-16 and WASP-32 through combining ground-based and TESS photometry
• Refined Ephemeris for Four Hot Jupiters using Ground-Based and TESS Observations
• ExoSpikeNet: A Light Curve Analysis Based Spiking Neural Network for Exoplanet Detection
• BVRI Photometric Observations, Light Curve Solutions and Orbital Period Analysis of BF Pav
• Period Study by the Transit Method with Ground-Based Observations
• Radius Study of Ten Transiting Hot Jupiter Exoplanets with Ground-Based Observations
• Estimation of the Total Mass of 10 Exoplanets and their Host Stars Based on the Primary Transit Method