Transiting Exoplanet Monitoring Project (TEMP). II. Refined System Parameters and Transit Timing Analysis of HAT-P-33b

Abstract

We present ten $R$-band photometric observations of eight different transits of the hot Jupiter HAT-P-33b, which has been targeted by our Transiting Exoplanet Monitoring Project (TEMP). The data were obtained by two telescopes at the Xinglong Station of National Astronomical Observatories of China (NAOC) from 2013 December through 2016 January, and exhibit photometric scatter of $1.6-3.0\mathrm{mmag}$. After jointly analyzing the previously published photometric data, radial-velocity (RV) measurements, and our new light curves, we revisit the system parameters and orbital ephemeris for the HAT-P-33b system. Our results are consistent with the published values except for the planet-to-star radius ratio ($R_P/R_{\ast }$), the ingress/egress duration ($\tau$) and the total duration ($T_{14}$), which together indicate a slightly shallower and shorter transit shape. Our results are based on more complete light curves, whereas the previously published work had only one complete transit light curve. No significant anomalies in Transit Timing Variations (TTVs) are found, and we place upper mass limits on potential perturbers, largely supplanting the loose constraints provided by the extant RV data. The TTV limits are stronger near mean-motion resonances, especially for the low-order commensurabilities. We can exclude the existence of a perturber with mass larger than 0.6, 0.3, 0.5, 0.5, and $0.3{\mathrm{M}}_{\oplus }$ near the 1:3, 1:2, 2:3, 3:2, and 2:1 resonances, respectively.

Accepted for AJ

References in corpus (19)

• The Transiting Exoplanet Survey Satellite
• The K2 Mission: Characterization and Early results
• Achieving better than 1 minute accuracy in the Heliocentric and Barycentric Julian Dates
• EXOFAST: A fast exoplanetary fitting suite in IDL
• The effect of red noise on planetary transit detection
• Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism
• Improved parameters for extrasolar transiting planets
• Origins of Eccentric Extrasolar Planets: Testing the Planet-Planet Scattering Model
• Models of the in situ formation of detected extrasolar giant planets
• Kepler constraints on planets near hot Jupiters
• The Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b
• Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars
• Homogeneous studies of transiting extrasolar planets. II. Physical properties
• Stability Limits in Extra-solar Planetary Systems
• A limit on the presence of Earth-mass planets around a Sun-like star
• A photometric study of the hot exoplanet WASP-19b
• Stellar Spin-Orbit Alignment for Kepler-9, a Multi-transiting Planetary system with Two Outer Planets Near 2:1 Resonance
• Planetary Transit Candidates in the CSTAR Field: Analysis of the 2008 Data
• Photometric defocus observations of transiting extrasolar planets

Cited by in corpus (14)

• TESS Transit Timing of Hundreds of Hot Jupiters
• ExoClock Project III: 450 new exoplanet ephemerides from ground and space observations
• DREAM I. Orbital architecture orrery
• TraMoS V. Updated ephemeris and multi-epoch monitoring of the hot Jupiters WASP-18Ab, WASP-19b, and WASP-77Ab
• ExoClock project II: A large-scale integrated study with 180 updated exoplanet ephemerides
• Investigating the physical properties of transiting hot Jupiters with the 1.5-m Kuiper Telescope
• Truly eccentric. I. Revisiting eight single-eccentric planetary systems
• Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves
• Discarding orbital decay in WASP-19b after one decade of transit observations
• DREAM: III.A helium survey in exoplanets on the edge of the hot Neptune desert with GIANO-B@TNG
• WASP-35 and HAT-P-30/WASP-51: re-analysis using TESS and ground-based transit photometry
• A search for transit timing variations in the HATS-18 planetary system
• The study on transiting systems HAT-P-13, HAT-P-16 and WASP-32 through combining ground-based and TESS photometry
• Revisiting the Full Sets of Orbital Parameters for the XO-3 System: No evidence for Temporal Variation of the Spin-Orbit Angle