DIAmante TESS AutoRegressive Planet Search (DTARPS): II. Hundreds of New TESS Candidate Exoplanets

Abstract

The DIAmante TESS AutoRegressive Planet Search (DTARPS) project seeks to identify photometric transiting planets from 976,814 southern hemisphere stars observed in Year 1 of the TESS mission. This paper follows the methodology developed by Melton et al. (Paper I) using light curves extracted and pre-processed by the DIAmante project (Montalto et al. 2020). Paper I emerged with a list of 7,377 light curves with statistical properties characteristic of transiting planets but dominated by False Alarms and False Positives. Here a multistage vetting procedure is applied including: centroid motion and crowding metrics, False Alarm and False Positive reduction, photometric binary elimination, and ephemeris match removal. The vetting produces a catalog of 462 DTARPS Candidates across the southern ecliptic hemisphere and 310 objects in a spatially incomplete Galactic Plane list. Fifty-eight percent were not previously identified as transiting systems. Candidates are flagged for possible blending from nearby stars based on Zwicky Transient Facility data and for possible radial velocity variations based on Gaia satellite data. Orbital periods and planetary radii are refined using astrophysical modeling; the resulting parameters closely match published values for Confirmed Planets. Their properties are discussed in Paper III.

arXiv comment34 pages, 11 figures. Published in The Astronomical Journal. Machine Readable Tables for the DTARPS-S Candidate Catalog is available at https://content.cld.iop.org/journals/1538-3881/167/5/203/revision1/ajad29f1t1_mrt.txt with Figure Set at .../ajad29f1figset5.tar.gz. The DTARPS-S Galactic Plane List is available at https://.../ajad29f1t4_mrt.txt with Figure Set .../ajad29f1figset10.tar.gz

References in corpus (67)

• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• Gaia Data Release 2. Summary of the contents and survey properties
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• The Gaia mission
• Analytic Lightcurves for Planetary Transit Searches
• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Zwicky Transient Facility: Data Processing, Products, and Archive
• Fast and scalable Gaussian process modeling with applications to astronomical time series
• The Revised TESS Input Catalog and Candidate Target List
• Efficient, uninformative sampling of limb darkening coefficients for two-parameter laws
• Overview of the Kepler Science Processing Pipeline
• Kepler Eclipsing Binary Stars. I. Catalog and Principal Characterization of 1879 Eclipsing Binaries in the First Data Release
• 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
• The TESS Objects of Interest Catalog from the TESS Prime Mission
• Identifying Exoplanets with Deep Learning: A Five Planet Resonant Chain around Kepler-80 and an Eighth Planet around Kepler-90
• STARRY: Analytic Occultation Light Curves
• A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS)
• 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
• Gaia Data Release 2: Properties and validation of the radial velocities
• TESS Eclipsing Binary Stars. I. Short cadence observations of 4584 eclipsing binaries in Sectors 1-26
• 275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
• Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates
• Pre-Spectroscopic False Positive Elimination of Kepler Planet Candidates
• Contamination in the Kepler Field. Identification of 685 KOIs as False Positives Via Ephemeris Matching Based On Q1-Q12 Data
• Wide Binaries in Tycho-{\it Gaia}: Search Method and the Distribution of Orbital Separations
• Automatic Classification of Kepler Planetary Transit Candidates
• The GTC exoplanet transit spectroscopy survey IX. Detection of Haze, Na, K, and Li in the super-Neptune WASP-127b
• The EBLM Project IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot-Jupiters
• Occurrence rate of hot Jupiters around early-type M dwarfs based on TESS data
• The rotation of field stars from CoRoT data
• An Ultra-Hot Neptune in the Neptune desert
• Superflares on solar-type stars from the first year observation of TESS
• The KELT Follow-Up Network and Transit False Positive Catalog: Pre-vetted False Positives for TESS
• ARES II: Characterising the Hot Jupiters WASP-127 b, WASP-79 b and WASP-62 b with HST
• The Curious Case of Elemental Abundance Differences in the Dual Hot Jupiter Hosts WASP-94AB
• Identifying Exoplanets with Deep Learning III: Automated Triage and Vetting of TESS Candidates
• Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0-8
• WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system
• Discovery and Vetting of Exoplanets I: Benchmarking K2 Vetting Tools
• The EBLM Project V. Physical properties of ten fully convective, very-low-mass stars
• Planet Hunters TESS II: Findings from the first two years of TESS
• Predicting the Exoplanet Yield of the TESS Prime and Extended Missions Through Years 1-7
• A search for transiting planets around FGKM dwarfs and sub-giants in the TESS Full Frame Images of the Southern ecliptic hemisphere
• Warm Jupiters in TESS Full-Frame Images: A Catalog and Observed Eccentricity Distribution for Year 1
• A feature-rich transmission spectrum for WASP-127b
• The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets
• Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars IV: Updated Properties for 86 Cool Dwarfs Observed During Campaigns 1-17
• Chemo-kinematics of the Milky Way from the SDSS-III MARVELS Survey
• Automatic vetting of planet candidates from ground based surveys: Machine learning with NGTS
• AutoRegressive Planet Search: Application to the Kepler Mission
• AutoRegressive Planet Search: Methodology
• Validation of TESS exoplanet candidates orbiting solar analogues in the all-sky PLATO input catalogue
• Identifying Planetary Transit Candidates in TESS Full-Frame Image Light Curves via Convolutional Neural Networks
• Automated identification of transiting exoplanet candidates in NASA Transiting Exoplanets Survey Satellite (TESS) data with machine learning methods
• TESS Habitable Zone Star Catalog
• TOI 694 b and TIC 220568520 b: Two Low-Mass Companions Near the Hydrogen Burning Mass Limit Orbiting Sun-like Stars
• WASP-147b, 160Bb, 164b and 165b: two hot Saturns and two Jupiters, including two planets with metal-rich hosts
• The TESS Triple-9 Catalog: 999 uniformly vetted candidate exoplanets
• Nigraha: Machine-learning based pipeline to identify and evaluate planet candidates from TESS
• A systematic validation of hot Neptunes in TESS data
• Why hot Jupiters can be large but not too large
• DIAmante TESS AutoRegressive Planet Search (DTARPS): I. Analysis of 0.9 Million Light Curves

Cited by in corpus (2)

• DIAmante TESS AutoRegressive Planet Search (DTARPS): I. Analysis of 0.9 Million Light Curves
• Detecting false positives with PLATO using double-aperture photometry and centroid shifts