The Transit Timing and Atmosphere of Hot Jupiter HAT-P-37b

Abstract

The transit timing variation (TTV) and transmission spectroscopy analyses of the planet HAT-P-37b, which is a hot Jupiter orbiting an G-type star, were performed. Nine new transit light curves are obtained and analysed together with 21 published light curves from the literature. The updated physical parameters of HAT-P-37b are presented. The TTV analyses show a possibility that the system has an additional planet which induced the TTVs amplitude signal of 1.74 $\pm$ 0.17 minutes. If the body is located near the 1:2 mean motion resonance orbit, the sinusoidal TTV signal could be caused by the gravitational interaction of a sub-Earth mass planet with mass of 0.06 $M_{\oplus }$. From the analysis of an upper mass limit for the second planet, the Saturn mass planet with orbital period less than 6 days is excluded. The broad-band transmission spectra of HAT-P-37b favours a cloudy atmospheric model with an outlier spectrum in $B$-filter.

arXiv comment22 pages, accepted by AJ

References in corpus (33)

• emcee: The MCMC Hammer
• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms
• Detection of an Extrasolar Planet Atmosphere
• batman: BAsic Transit Model cAlculatioN in Python
• Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
• The Revised TESS Input Catalog and Candidate Target List
• A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
• On detecting terrestrial planets with timing of giant planet transits
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• Theoretical Transmission Spectra During Extrasolar Giant Planet Transits
• Wide-field millimagnitude photometry with HAT: A Tool for Extra-solar Planet Detection
• The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets
• Extracting Planet Mass and Eccentricity From TTV data
• Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
• LDTk: Limb Darkening Toolkit
• The Apparently Decaying Orbit of WASP-12
• Python Leap Second Management and Implementation of Precise Barycentric Correction (barycorrpy)
• Forward modelling and retrievals with PLATON, a fast open source tool
• Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b
• HAT-P-34b -- HAT-P-37b: Four Transiting Planets More Massive Than Jupiter Orbiting Moderately Bright Stars
• Transit timing variation in exoplanet WASP-3b
• Investigating the physical properties of transiting hot Jupiters with the 1.5-m Kuiper Telescope
• Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b
• Possible Transit Timing Variations of the TrES-3 Planetary System
• Transit timing variations in the WASP-4 planetary system
• Transit timing variations for planets near eccentricity-type mean motion resonances
• Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves
• Probing Transit Timing Variation and its Possible Origin with Twelve New Transits of TrES-3b
• Indications for transit timing variations in the exo-Neptune HAT-P-26b
• HAT-P-58b -- HAT-P-64b: Seven Planets Transiting Bright Stars
• TransitFit: combined multi-instrument exoplanet transit fitting for JWST, HST and ground-based transmission spectroscopy studies

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