The SHERLOCK pipeline: new exoplanet candidates in the WASP-16, HAT-P-27, HAT-P-26, and TOI-2411 systems

Abstract

The launches of NASA Kepler and TESS missions have significantly enhanced the interest in the exoplanet field during the last 15 years, providing a vast amount of public data that is being exploited by the community thanks to the continuous development of new analysis tools. However, using these tools is not straightforward, and users must dive into different codes, input-output formats, and methodologies, hindering an efficient and robust exploration of the available data. We present the SHERLOCK pipeline, an end-to-end public software that allows the users to easily explore observations from space-based missions such as TESS or Kepler to recover known planets and candidates issued by the official pipelines and search for new planetary candidates that remained unnoticed. The pipeline incorporates all the steps to search for transit-like features, vet potential candidates, provide statistical validation, conduct a Bayesian fitting, and compute observational windows from ground-based observatories. Its performance is tested against a catalog of known and confirmed planets from the TESS mission, trying to recover the official TESS Objects of Interest (TOIs), explore the existence of companions that have been missed, and release them as new planetary candidates. SHERLOCK demonstrated an excellent performance, recovering 98% of the TOIs and confirmed planets in our test sample and finding new candidates. Specifically, we release four new planetary candidates around the systems WASP-16 (with P$\sim$10.46 d and R$\sim$2.20 $R_{\oplus }$), HAT-P-27 (with P$\sim$1.20 d and R$\sim$4.33 $R_{\oplus }$), HAT-P-26 (with P$\sim$6.59 d and R$\sim$1.97 $R_{\oplus }$), and TOI-2411 (with P$\sim$18.75 d and R$\sim$2.88 $R_{\oplus }$).

arXiv comment23 pages, 14 figures, 4 tables, This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society Published by Oxford University Press on behalf of the Royal Astronomical Society

References in corpus (83)

• Astropy: A Community Python Package for Astronomy
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
• The WASP Project and the SuperWASP Cameras
• REBOUND: An open-source multi-purpose N-body code for collisional dynamics
• A box-fitting algorithm in the search for periodic transits
• The HARPS search for southern extra-solar planets XXXI. The M-dwarf sample
• Probabilistic Forecasting of the Masses and Radii of Other Worlds
• Origins of Hot Jupiters
• A Technique for Extracting Highly Precise Photometry for the Two-Wheeled Kepler Mission
• Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets
• WHFast: A fast and unbiased implementation of a symplectic Wisdom-Holman integrator for long term gravitational simulations
• False positive probabilties for all Kepler Objects of Interest: 1284 newly validated planets and 428 likely false positives
• Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog With Measured Completeness and Reliability Based on Data Release 25
• Design Considerations for a Ground-based Transit Search for Habitable Planets Orbiting M dwarfs
• Juliet: a versatile modelling tool for transiting and non-transiting exoplanetary systems
• Exoplanetary Atmospheres: Key Insights, Challenges and Prospects
• Kepler Data Validation I -- Architecture, Diagnostic Tests, and Data Products for Vetting Transiting Planet Candidates
• Almost All of Kepler's Multiple Planet Candidates are Planets
• The Mass of KOI-94d and a Relation for Planet Radius, Mass, and Incident Flux
• The CHEOPS mission
• Planetary nebulae seen with TESS: Discovery of new binary central star candidates from Cycle 1
• An Efficient Automated Validation Procedure for Exoplanet Transit Candidates
• Transit Least Squares: Optimized transit detection algorithm to search for periodic transits of small planets
• EVEREST: Pixel Level Decorrelation of K2 Light curves
• Wotan: Comprehensive time-series de-trending in Python
• eleanor: An open-source tool for extracting light curves from the TESS Full-Frame Images
• Planetary Candidates Observed by Kepler. VII. The First Fully Uniform Catalog Based on The Entire 48 Month Dataset (Q1-Q17 DR24)
• exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series
• PASTIS: Bayesian extrasolar planet validation. I. General framework, models, and performance
• Identification of Background False Positives from Kepler Data
• 275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
• Instrument Performance in Kepler's First Months
• Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates
• The Solar Neighborhood XXXV: Distances to 1404 M Dwarf Systems Within 25 pc in the Southern Sky
• HAT-P-26b: A Low-Density Neptune-Mass Planet Transiting a K Star
• The L 98-59 System: Three Transiting, Terrestrial-Sized Planets Orbiting a Nearby M-dwarf
• SPIRou: the near-infrared spectropolarimeter/high-precision velocimeter for the Canada-France-Hawaii telescope
• An update to the EVEREST K2 pipeline: Short cadence, saturated stars, and Kepler-like photometry down to Kp = 15
• Are Radio AGN Powered by Accretion or Black Hole Spin?
• Searching the Entirety of Kepler Data. II. Occurrence Rate Estimates for FGK Stars
• A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270
• SPECULOOS -- Ultracool Dwarf Transit Survey: Target List and Strategy
• New planetary and EB candidates from Campaigns 1-6 of the K2 mission
• A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266
• Two Empirical Regimes of the Planetary Mass-Radius Relation
• Formation and composition of planets around very low mass stars
• Transit detection of the long-period volatile-rich super-Earth ${\nu }^2$ Lupi d with $CHEOPS$
• Amplitude and frequency variations of oscillation modes in the pulsating DB white dwarf star KIC~08626021: The likely signature of nonlinear resonant mode coupling
• ExoMiner: A Highly Accurate and Explainable Deep Learning Classifier that Validates 301 New Exoplanets
• HAT-P-27b: A hot Jupiter transiting a G star on a 3 day orbit
• Evidence for Hidden Nearby Companions to Hot Jupiters
• Two temperate super-Earths transiting a nearby late-type M dwarf
• Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0-8
• The Quasiperiodic Automated Transit Search Algorithm
• Discovery and Vetting of Exoplanets I: Benchmarking K2 Vetting Tools
• A super-Earth and sub-Neptune transiting the late-type M dwarf LP 791-18
• GJ 273: On the formation, dynamical evolution and habitability of a planetary system hosted by an M dwarf at 3.75 parsec
• Impact of the measured parameters of exoplanets on the inferred internal structure
• A search for transiting planets around FGKM dwarfs and sub-giants in the TESS Full Frame Images of the Southern ecliptic hemisphere
• Near-resonance in a system of sub-Neptunes from TESS
• Evidence of amplitude modulation due to Resonant Mode Coupling in the delta Scuti star KIC5892969
• WASP-16b: A new Jupiter-like planet transiting a southern solar analog
• The GAPS Programme at TNG XXVIII -- A pair of hot-Neptunes orbiting the young star TOI-942
• Validation of 13 Hot and Potentially Terrestrial TESS Planets
• SPECULOOS Northern Observatory: searching for red worlds in the northern skies
• A super-Earth and a mini-Neptune near the 2:1 MMR straddling the radius valley around the nearby mid-M dwarf TOI-2096
• Ephemeris refinement of 21 Hot Jupiter exoplanets with high timing uncertainties
• A 1.55 R${}_{\oplus }$ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole
• A transit survey to search for planets around hot subdwarfs: I. methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPS
• Scaling K2. II. Assembly of a Fully Automated C5 Planet Candidate Catalog Using EDI-Vetter
• GJ357: A low-mass planetary system uncovered by precision radial-velocities and dynamical simulations
• The TRAPPIST-1 JWST Community Initiative
• A hot super-Earth planet in the WASP-84 planetary system
• Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095
• SPECULOOS exoplanet search and its prototype on TRAPPIST
• NEMESIS: Exoplanet Transit Survey of Nearby M-Dwarfs in TESS FFIs I
• Mode identification in three pulsating hot subdwarfs observed with TESS satellite
• Indications for transit timing variations in the exo-Neptune HAT-P-26b
• Connecting Planetary Composition with Formation
• The independent discovery of planet candidates around low mass stars and astrophysical false positives from the first two TESS sectors
• A search for transiting planets around hot subdwarfs II. Supplementary methods and results from TESS Cycle 1
• Planets from the HATNet project

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• TESS discovery of two super-Earths orbiting the M-dwarf stars TOI-6002 and TOI-5713 near the radius valley
• A transiting giant planet in orbit around a 0.2-solar-mass host star
• Two warm Earth-sized exoplanets and an Earth-sized candidate in the M5V-M6V binary system TOI-2267
• TOI-1743 b, TOI-5799 b, TOI-5799 c and TOI-6223 b: TESS discovery and validation of four super-Earth to Neptune-sized planets around M dwarfs
• TOI-7166 b: A Habitable Zone mini-Neptune planet around a nearby low-mass star
• A transiting rocky super-Earth and a non-transiting sub-Neptune orbiting the M dwarf TOI-771
• Hidden Gems in TESS: sherlock finds two new rocky planets around nearby M dwarfs
• Sibling Sub-Neptunes Around Sibling M Dwarfs: TOI-521 and TOI-912