Updated Catalog of Kepler Planet Candidates: Focus on Accuracy and Orbital Periods

Abstract

We present a new catalog of Kepler planet candidates that prioritizes accuracy of planetary dispositions and properties over uniformity. This catalog contains 4376 transiting planet candidates, including 1791 residing within 709 multi-planet systems, and provides the best parameters available for a large sample of Kepler planet candidates. We also provide a second set of stellar and planetary properties for transiting candidates that are uniformly-derived for use in occurrence rates studies. Estimates of orbital periods have been improved, but as in previous catalogs, our tabulated values for period uncertainties do not fully account for transit timing variations (TTVs). We show that many planets are likely to have TTVs with long periodicities caused by various processes, including orbital precession, and that such TTVs imply that ephemerides of Kepler planets are not as accurate on multi-decadal timescales as predicted by the small formal errors (typically 1 part in $10^6$ and rarely $>10^{-5}$) in the planets' measured mean orbital periods during the Kepler epoch. Analysis of normalized transit durations implies that eccentricities of planets are anti-correlated with the number of companion transiting planets. Our primary catalog lists all known Kepler planet candidates that orbit and transit only one star; for completeness, we also provide an abbreviated listing of the properties of the two dozen non-transiting planets that have been identified around stars that host transiting planets discovered by Kepler.

arXiv comment62 pages, 32 figures, 5 tables. Published in The Planetary Science Journal, volume 5, #6 (2024). The first table appears in abbreviated form in the main manuscript and is provided in full as a separate file. A standard resolution version of Figure 32 appears within the manuscript; a high-resolution version of Figure 32 is also provided separate file

References in corpus (111)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Gaia Data Release 2. Summary of the contents and survey properties
• Analytic Lightcurves for Planetary Transit Searches
• Planetary Candidates Observed by Kepler, III: Analysis of the First 16 Months of Data
• Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data
• A box-fitting algorithm in the search for periodic transits
• On the Unique Solution of Planet and Star Parameters from an Extrasolar Planet Transit Light Curve
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• On detecting terrestrial planets with timing of giant planet transits
• Architecture and Dynamics of Kepler's Candidate Multiple Transiting Planet Systems
• Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates
• Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass
• A Closely-Packed System of Low-Mass, Low-Density Planets Transiting Kepler-11
• The California Kepler Survey VII. Precise Planet Radii Leveraging Gaia DR2 Reveal the Stellar Mass Dependence of the Planet Radius Gap
• Validation of Kepler's Multiple Planet Candidates. III: Light Curve Analysis & Announcement of Hundreds of New Multi-planet Systems
• Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets
• Origins of Eccentric Extrasolar Planets: Testing the Planet-Planet Scattering Model
• WHFast: A fast and unbiased implementation of a symplectic Wisdom-Holman integrator for long term gravitational simulations
• Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25
• Identifying Exoplanets with Deep Learning: A Five Planet Resonant Chain around Kepler-80 and an Eighth Planet around Kepler-90
• Characteristics of Kepler Planetary Candidates Based on the First Data Set: The Majority are Found to be Neptune-Size and Smaller
• The California-Kepler Survey V. Peas in a Pod: Planets in a Kepler Multi-planet System are Similar in Size and Regularly Spaced
• The California-Kepler Survey. I. High Resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets
• Almost All of Kepler's Multiple Planet Candidates are Planets
• Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
• SOPHIE velocimetry of Kepler transit candidates XVII. The physical properties of giant exoplanets within 400 days of period
• Planetary Candidates Observed by Kepler VI: Planet Sample from Q1-Q16 (47 Months)
• About 30% of Sun-like Stars Have Kepler-like Planetary Systems: A Study of their Intrinsic Architecture
• Kepler constraints on planets near hot Jupiters
• The Kepler Follow-Up Observation Program. I. A Catalog of Companions to Kepler Stars from High-Resolution Imaging
• The orbital eccentricity of small planet systems
• A Study of the Shortest-Period Planets Found With Kepler
• KOI-126: A Triply-Eclipsing Hierarchical Triple with Two Low-Mass Stars
• The Exoplanet Population Observation Simulator. I - The Inner Edges of Planetary Systems
• Densities and Eccentricities of 139 Kepler Planets from Transit Time Variations
• Exoplanet Orbital Eccentricities Derived From LAMOST-Kepler Analysis
• Planetary Candidates Observed by Kepler. VII. The First Fully Uniform Catalog Based on The Entire 48 Month Dataset (Q1-Q17 DR24)
• Validation of Kepler's Multiple Planet Candidates. II: Refined Statistical Framework and Descriptions of Systems of Special Interest
• Planetary Candidates Observed by Kepler IV: Planet Sample From Q1-Q8 (22 Months)
• A resonant chain of four transiting, sub-Neptune planets
• A sub-Mercury-sized exoplanet
• Occurrence Rates of Planets orbiting FGK Stars: Combining Kepler DR25, Gaia DR2 and Bayesian Inference
• Transit Timing Observations from Kepler. IX. Catalog of the Full Long-Cadence Data Set
• Planetary Candidates Observed by Kepler V: Planet Sample from Q1-Q12 (36 Months)
• A First Comparison of Kepler Planet Candidates in Single and Multiple Systems
• Kepler Multi-Planet Systems Exhibit Unexpected Intra-system Uniformity in Mass and Radius
• The Distribution of Transit Durations for Kepler Planet Candidates and Implications for their Orbital Eccentricities
• The Photoeccentric Effect and Proto-Hot Jupiters I. Measuring photometric eccentricities of individual transiting planets
• Secure TTV Mass Measurements: Ten Kepler Exoplanets between 3 and 8 Earth Masses with Diverse Densities and Incident Fluxes
• A Dynamical Analysis of the Kepler-80 System of Five Transiting Planets
• Architectures of Exoplanetary Systems. I: A Clustered Forward Model for Exoplanetary Systems around Kepler's FGK Stars
• Can planetary instability explain the Kepler dichotomy?
• The Exoplanet Eccentricity Distribution from Kepler Planet Candidates
• On The Relative Sizes of Planets Within Kepler Multiple Candidate Systems
• Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems
• Characterizing the Orbital Eccentricities of Transiting Extrasolar Planets with Photometric Observations
• Architectures of Exoplanetary Systems. III: Eccentricity and Mutual Inclination Distributions of AMD-stable Planetary Systems
• Superabundance of Exoplanet Sub-Neptunes Explained by Fugacity Crisis
• Accounting for Incompleteness due to Transit Multiplicity in Kepler Planet Occurrence Rates
• Kepler-432: a red giant interacting with one of its two long period giant planets
• HAT-P-11: Discovery of a Second Planet and a Clue to Understanding Exoplanet Obliquities
• A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system
• Planet Hunters VII. Discovery of a New Low-Mass, Low-Density Planet (PH3 c) Orbiting Kepler-289 with Mass Measurements of Two Additional Planets (PH3 b and d)
• Rapid dynamical chaos in an exoplanetary system
• Occurrence and Architecture of Kepler Planetary Systems as Functions of Stellar Mass and Effective Temperature
• The path to instability in compact multi-planetary systems
• Kepler-411: a four-planet system with an active host star
• The Quasiperiodic Automated Transit Search Algorithm
• Kepler-108: A Mutually Inclined Giant Planet System
• A lack of short-period multiplanet systems with close-proximity pairs and the curious case of Kepler 42
• The Kepler-19 system: a thick-envelope super-Earth with two Neptune-mass companions characterized using Radial Velocities and Transit Timing Variations
• Two Views of the Radius Gap and the Role of Light Curve Fitting
• Hubble Space Telescope High Resolution Imaging of Kepler Small and Cool Exoplanet Host Stars
• The Photoeccentric Effect and Proto-Hot Jupiters II. KOI-1474.01, a candidate eccentric planet perturbed by an unseen companion
• The Orbit and Mass of the Third Planet in the Kepler-56 System
• Observational biases for transiting planets
• Long-Period Giant Companions to Three Compact, Multiplanet Systems
• Revision of Earth-sized Kepler Planet Candidate Properties with High Resolution Imaging by Hubble Space Telescope
• Exoplanet Validation with Machine Learning: 50 new validated Kepler planets
• The multiplicity distribution of Kepler's exoplanets
• Kepler-424 b: A "Lonely" Hot Jupiter That Found A Companion
• New substellar discoveries from Kepler and K2: Is there a brown dwarf desert?
• Forming Diverse Super-Earth Systems in Situ
• A spectral approach to transit timing variations
• AutoRegressive Planet Search: Application to the Kepler Mission
• Investigation of Kepler Objects of Interest Stellar Parameters from Observed Transit Durations
• Frequency of Close Companions among Kepler Planets - a TTV study
• Transiting Planets near the Snow Line from Kepler. I. Catalog
• Kepler-11 is a Solar Twin: Revising the Masses and Radii of Benchmark Planets Via Precise Stellar Characterization
• Kepler's Earth-like Planets Should Not Be Confirmed Without Independent Detection: The Case of Kepler-452b
• Improved radius determinations for the transiting brown dwarf population in the era of Gaia and TESS
• Re-Evaluating Small Long-Period Confirmed Planets From Kepler
• SOPHIE velocimetry of Kepler transit candidates XVIII. Radial velocity confirmation, absolute masses and radii, and origin of the Kepler-419 multiplanetary system
• Potential Biases in the Detection of Planetary Systems with Large Transit Timing Variations
• Photo-Dynamical Analysis of Three Kepler Objects of Interest with Significant Transit Timing Variations
• Following up the Kepler field: Masses of Targets for transit timing and atmospheric characterization
• A Five-Planet Resonant Chain: Reevaluation of the Kepler-80 System
• Visual Analysis and Demographics of Kepler Transit Timing Variations
• Masses of Kepler-46b, c from Transit Timing Variations
• The Discovery of the Long-Period, Eccentric Planet Kepler-88 d and System Characterization with Radial Velocities and Photodynamical Analysis
• Orbital stability of compact three-planet systems, I: Dependence of system lifetimes on initial orbital separations and longitudes
• A Spectroscopic Analysis of the California-Kepler Survey Sample: II. Correlations of Stellar Metallicities with Planetary Architectures
• The origin and 9:7 MMR dynamics of the Kepler-29 system
• A Search for Lost Planets in the Kepler Multi-planet Systems and the Discovery of the Long-period, Neptune-sized Exoplanet Kepler-150 f
• Running The Gauntlet -- Survival of Small Circumbinary Planets Migrating Through Destabilising Resonances
• Implicit biases in transit models using stellar pseudo-density
• A hot Mars-sized exoplanet transiting an M dwarf
• Orbital stability of compact three-planet systems, II: Post-instability impact behaviour
• Follow-up of non-transiting planets detected by Kepler. Confirmation of three hot-Jupiters and validation of three other planets
• A New Planet in the Kepler-159 System From Transit Timing Variations
• Rescuing Unrecognized Exoplanet Candidates in Kepler Data

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• Biases from Missing a Small Planet in High Multiplicity Systems
• Analyzing New Planetary Systems at School: Applications of Newton's Law of Universal Gravitation and Kepler's Third Law
• Destruction of "Peas in a Pod?" A Candidate Multi-planet System Around the Nearby, Bright Star, HD208487
• Modelling the Milky Way's exoplanet population based on cosmological galaxy simulations
• An Independent Search for Small Long-period Planets in Kepler Data I: Detection Pipeline