Systematic Phase Curve Study of Known Transiting Systems from Year 1 of the TESS Mission

Abstract

We present a systematic phase curve analysis of known transiting systems observed by the Transiting Exoplanet Survey Satellite (TESS) during year one of the primary mission. Using theoretical predictions for the amplitude of the planetary longitudinal atmospheric brightness modulation, stellar ellipsoidal distortion and Doppler boosting, as well as brightness considerations to select targets with likely detectable signals, we applied a uniform data processing and light-curve modeling framework to fit the full-orbit phase curves of 22 transiting systems with planet-mass or brown dwarf companions, including previously published systems. Statistically significant secondary eclipse depths and/or atmospheric brightness modulation amplitudes were measured for HIP 65A, WASP-18, WASP-19, WASP-72, WASP-100, WASP-111, WASP-121, and WASP-122/KELT-14. For WASP-100b, we found marginal evidence that the brightest region of the atmosphere is shifted eastward away from the substellar point. We detected significant ellipsoidal distortion signals in the light curves of HIP 65A, TOI-503, WASP-18, and WASP-30, with HIP 65A, TOI-503 and WASP-18 also exhibiting Doppler boosting. The measured amplitudes of these signals agree with the predictions of theoretical models. Combining the optical secondary eclipse depths with previously published Spitzer 3.6 and 4.5 $\mu$m measurements, we derived dayside brightness temperatures and visible-light geometric albedos for a subset of the analyzed systems. We also calculated updated transit ephemerides combining the transit timings from the TESS light curves with previous literature values.

arXiv commentPublished in AJ. 38 pages, 15 figures, 7 tables. Corrected last two listed ephemerides in Table 6

References in corpus (102)

• emcee: The MCMC Hammer
• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• batman: BAsic Transit Model cAlculatioN in Python
• Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction
• A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
• The TESS Input Catalog and Candidate Target List
• The effect of red noise on planetary transit detection
• The Transiting Exoplanet Survey Satellite: Simulations of planet detections and astrophysical false positives
• Accurate, Empirical Radii and Masses of Planets and their Host Stars with Gaia Parallaxes
• The Statistics of Albedo and Heat Recirculation on Hot Exoplanets
• From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context
• Limb and gravity-darkening coefficients for the TESS satellite at several metallicities, surface gravities, and microturbulent velocities
• H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b
• Inference of Inhomogeneous Clouds in an Exoplanet Atmosphere
• Extremely Irradiated Hot Jupiters: Non-Oxide Inversions, H- Opacity, and Thermal Dissociation of Molecules
• A Sub-Neptune Exoplanet with a Low-Metallicity Methane-Depleted Atmosphere and Mie-Scattering Clouds
• Periodic Flux Variability of Stars due to the Reflex Doppler Effect Induced by Planetary Companions
• The Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b
• WASP-19b: the shortest period transiting exoplanet yet discovered
• WASP-121 b: a hot Jupiter in a polar orbit and close to tidal disruption
• The Very Low Albedo of an Extrasolar Planet: MOST Spacebased Photometry of HD 209458
• On the Anomalous Radii of the Transiting Extrasolar Planets
• Thermal Phase Variations of WASP-12b: Defying Predictions
• Changing Phases of Alien Worlds: Probing Atmospheres of Kepler Planets with High-Precision Photometry
• Atmospheric Heat Redistribution on Hot Jupiters
• Observations of Doppler Boosting in Kepler Lightcurves
• The Deep Blue Color of HD189733b: Albedo Measurements with Hubble Space Telescope/Space Telescope Imaging Spectrograph at Visible Wavelengths
• Spitzer Phase Curve Constraints for WASP-43b at 3.6 and 4.5 microns
• WASP-43b: The closest-orbiting hot Jupiter
• Optical Phase Curves of Kepler Exoplanets
• The Orbit of WASP-12b is Decaying
• Understanding Trends Associated with Clouds in Irradiated Exoplanets
• Improved parameters for the transiting hot Jupiters WASP-4b and WASP-5b
• Beaming Binaries - a New Observational Category of Photometric Binary Stars
• A comprehensive study of Kepler phase curves and secondary eclipses -- temperatures and albedos of confirmed Kepler giant planets
• The Effects of Irradiation on Hot Jovian Atmospheres: Heat Redistribution and Energy Dissipation
• WASP-4b: a 12th-magnitude transiting hot-Jupiter in the Southern hemisphere
• Spitzer 3.6 micron and 4.5 micron full-orbit lightcurves of WASP-18
• WASP-30b: a 61 Mjup brown dwarf transiting a V=12, F8 star
• 3.6 and 4.5 $\mu$m $Spitzer$ Phase Curves of the Highly-Irradiated Hot Jupiters WASP-19b and HAT-P-7b
• Transiting hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b
• Detection of the ellipsoidal and the relativistic beaming effects in the CoRoT-3 lightcurve
• Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b & WASP-90b
• A new method to compute limb-darkening coefficients for stellar atmosphere models with spherical symmetry: the space missions TESS, Kepler, Corot, and MOST
• Atmospheric Characterization of the Hot Jupiter Kepler-13Ab
• The EBLM Project I-Physical and orbital parameters, including spin-orbit angles, of two low-mass eclipsing binaries on opposite sides of the Brown Dwarf limit
• Observational Evidence for Tidal Interaction in Close Binary Systems
• Tidal asteroseismology: Kepler's KOI-54
• Ground-based near-UV observations of 15 transiting exoplanets: Constraints on their atmospheres and no evidence for asymmetrical transits
• Ellipsoidal Oscillations Induced by Substellar Companions: A Prospect for the Kepler Mission
• Spitzer Phase Curves of KELT-1b and the Signatures of Nightside Clouds in Thermal Phase Observations
• Photometrically derived masses and radii of the planet and star in the TrES-2 system
• Transit Signatures of Inhomogeneous Clouds on Hot Jupiters: Insights From Microphysical Cloud Modeling
• WASP-44b, WASP-45b and WASP-46b: three short-period, transiting extrasolar planets
• TESS full orbital phase curve of the WASP-18b system
• Exoplanet Clouds
• Studying atmosphere-dominated hot Jupiter Kepler phase curves: Evidence that inhomogeneous atmospheric reflection is common
• Statistical Characterization of Hot Jupiter Atmospheres using Spitzer's Secondary Eclipses
• The astrophysics of visible-light orbital phase curves in the space age
• WASP-77 Ab: A transiting hot Jupiter planet in a wide binary system
• The continuing search for evidence of tidal orbital decay of hot Jupiters
• Factors Affecting the Radii of Close-in Transiting Exoplanets
• Warm Spitzer Photometry of the Transiting Exoplanets CoRoT-1 and CoRoT-2 at Secondary Eclipse
• WASP-5b: a dense, very-hot Jupiter transiting a 12th-mag Southern-hemisphere star
• WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b & WASP-142b
• Optical phase curve of the ultra-hot Jupiter WASP-121b
• WASP-4b Arrived Early for the TESS Mission
• Secondary Eclipse Photometry of WASP-4b with Warm Spitzer
• The secondary eclipse of the transiting exoplanet CoRoT-2b
• The secondary eclipse of CoRoT-1b
• Discovery and Atmospheric Characterization of Giant Planet Kepler-12b: An Inflated Radius Outlier
• Exploring the atmospheric dynamics of the extreme ultra-hot Jupiter KELT-9b using TESS photometry
• WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus
• WASP-64b and WASP-72b: two new transiting highly irradiated giant planets
• The Very Low Albedo of WASP-12b From Spectral Eclipse Observations with $\text{Hubble}$
• Temporal Variability in Hot Jupiter Atmospheres
• Detection of Planetary Emission from the Exoplanet TrES-2 using Spitzer /IRAC
• BEER analysis of Kepler and CoRoT light curves: II. Evidence for superrotation in the phase curves of three Kepler hot Jupiters
• The atmospheres of the hot-Jupiters Kepler-5b and Kepler-6b observed during occultations with Warm-Spitzer and Kepler
• Mass ratio from Doppler beaming and Rømer delay versus ellipsoidal modulation in the Kepler data of KOI-74
• Revisiting the Energy Budget of WASP-43b: Enhanced day-night heat transport
• WASP-4 is Accelerating Toward the Earth
• WASP-36b: A new transiting planet around a metal-poor G-dwarf, and an investigation into analyses based on a single transit light curve
• TOI-503: The first known brown dwarf-Am star binary from the TESS mission
• New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE and TRAPPIST-South
• $TESS$ Phase Curve of the Hot Jupiter WASP-19b
• New substellar discoveries from Kepler and K2: Is there a brown dwarf desert?
• An optical transmission spectrum of the giant planet WASP-36 b
• WASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South survey
• Optical to near-infrared transmission spectrum of the warm sub-Saturn HAT-P-12b
• Secondary Eclipse Photometry of the Exoplanet WASP-5b with Warm Spitzer
• Three Short Period Jupiters from TESS
• KELT-14b and KELT-15b: An Independent Discovery of WASP-122b and a New Hot Jupiter
• SOPHIE velocimetry of Kepler transit candidates. I. Detection of the low-mass white dwarf KOI-74b
• Detection of the phase curve and occultation of WASP-100b with TESS
• Discarding orbital decay in WASP-19b after one decade of transit observations
• Stellar Obliquities & Planetary Alignments (SOPA) I. Spin-Orbit measurements of Three Transiting Hot Jupiters: WASP-72b, WASP-100b, & WASP-109b
• TOI 694 b and TIC 220568520 b: Two Low-Mass Companions Near the Hydrogen Burning Mass Limit Orbiting Sun-like Stars
• HATS-22b, HATS-23b and HATS-24b: Three new transiting Super-Jupiters from the HATSouth Project
• A search for transit timing variations and orbital decay in WASP-46b
• Reflected Light Phase Curves in the TESS Era
• The full $Kepler$ phase curve of the eclipsing hot white dwarf binary system KOI-964

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• Science Extraction from TESS Observations of Known Exoplanet Hosts
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• A sub-solar metallicity on the ultra-short period planet HIP 65Ab
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• On spectroscopic phase-curve retrievals: H2 dissociation and thermal inversion in the atmosphere of the ultra-hot Jupiter WASP-103 b
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• Revisiting Kepler Transiting Systems: Unvetting Planets and Constraining Relationships among Harmonics in Phase Curves
• Null transit detections of 68 radial velocity exoplanets observed by TESS
• Comprehensive analysis of TESS Full Orbital Phase Curve of WASP-121b
• TESS Unveils the Full Phase Curve of WASP-19b
• Search for Exoplanetary Ring Systems with TESS
• GJ 238 b: A 0.57 Earth Radius Planet Orbiting an M2.5 Dwarf Star at 15.2 pc
• The Hubble PanCET Program: A Featureless Transmission Spectrum for WASP-29b and Evidence of Enhanced Atmospheric Metallicity on WASP-80b
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• The Effect of Atmospheric Chemistry on the Optical Geometric Albedos of Hot Jupiters
• TOI-1518b: A Misaligned Ultra-hot Jupiter with Iron in its Atmosphere
• Revisiting the secondary eclipses of KELT-1b using TESS observations