New planetary and EB candidates from Campaigns 1-6 of the K2 mission

Abstract

With only two functional reaction wheels, Kepler cannot maintain stable pointing at its original target field and entered a new mode of observation called K2. Our method is based on many years of experience in planet hunting for the CoRoT mission. Due to the unstable pointing, K2 light curves present systematics that are correlated with the target position in the CCD. Therefore, our pipeline also includes a decorrelation of this systematic noise. Our pipeline is optimised for bright stars for which spectroscopic follow-up is possible. We achieve a maximum precision on 6 hours of 6 ppm. The decorrelated light curves are searched for transits with an adapted version of the CoRoT alarm pipeline. We present 172 planetary candidates and 327 eclipsing binary candidates from campaigns 1, 2, 3, 4, 5 and 6 of K2. Both the planetary candidates and eclipsing binary candidates lists are made public to promote follow-up studies. The light curves will also be available to the community.

22 pages. 5 figures, 4 tables, Accepted for publication in A&A

References in corpus (9)

• The K2 Mission: Characterization and Early results
• A Technique for Extracting Highly Precise Photometry for the Two-Wheeled Kepler Mission
• A nearby M star with three transiting super-Earths discovered by K2
• Precise time-series photometry for the Kepler-2.0 mission
• K2P${}^2$ $-$ A photometry pipeline for the K2 mission
• Kepler-432: a red giant interacting with one of its two long period giant planets
• K2 Variable Catalogue: Variable Stars and Eclipsing Binaries in K2 Campaigns 1 and 0
• Revisiting the transits of CoRoT-7b at a lower activity level
• Efficient analysis in planet transit surveys

Cited by in corpus (51)

• Zodiacal Exoplanets in Time (ZEIT) IV: seven transiting planets in the Praesepe cluster
• Warm terrestrial planet with half the mass of Venus transiting a nearby star
• Age Determination in Upper Scorpius with Eclipsing Binaries
• A temperate exo-Earth around a quiet M dwarf at 3.4 parsecs
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- I. Search for exoplanets and variable stars in the field of 47 Tuc
• A precise architecture characterization of the $\pi$ Men planetary system
• Discovery and Vetting of Exoplanets I: Benchmarking K2 Vetting Tools
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- II. Search for exoplanets in open clusters of the southern ecliptic hemisphere and their frequency
• Characterizing K2 Candidate Planetary Systems Orbiting Low-Mass Stars I: Classifying Low-mass Host Stars Observed During Campaigns 1-7
• Exoplanet characterisation in the longest known resonant chain: the K2-138 system seen by HARPS
• Planet Candidates from K2 Campaigns 5-8 and Follow-Up Optical Spectroscopy
• K2-66b and K2-106b: Two extremely hot sub-Neptune-size planets with high densities
• Decoding the radial velocity variations of HD41248 with ESPRESSO
• Scaling K2. VI. Reduced Small Planet Occurrence in High Galactic Amplitude Stars
• HD 23472: A multi-planetary system with three super-Earths and two potential super-Mercuries
• Understanding stellar activity-induced radial velocity jitter using simultaneous K2 photometry and HARPS RV measurements
• Disproval of the validated planets K2-78b, K2-82b, and K2-92b
• Precise masses for the transiting planetary system HD 106315 with HARPS
• Masses for the seven planets in K2-32 and K2-233. Four diverse planets in resonant chain and the first young rocky worlds
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- III. Exploring the properties of young associations through their variables, dippers, and candidate exoplanets
• 37 New Validated Planets in Overlapping K2 Campaigns
• Five young $\delta$ Scuti stars in the Pleiades seen with Kepler/K2
• Scaling K2. IV. A Uniform Planet Sample for Campaigns 1-8 and 10-18
• The K2-OjOS Project: New and revisited planets and candidates in K2 campaigns 5, 16, & 18
• Ondr}ejov echelle spectrograph, ground based support facility for exoplanet missions
• The compact multiple system HIP 41431
• Scaling K2. II. Assembly of a Fully Automated C5 Planet Candidate Catalog Using EDI-Vetter
• Another Shipment of Six Short-Period Giant Planets from TESS
• The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter
• Transit least-squares survey -- II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2
• HD 99458: First time ever Ap-type star as a $\delta$ Scuti pulsator in a short period eclipsing binary?
• The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one
• Revisiting Radial Velocity Measurements of the K2-18 System with the Line-by-Line Framework
• The SHERLOCK pipeline: new exoplanet candidates in the WASP-16, HAT-P-27, HAT-P-26, and TOI-2411 systems
• Scaling K2. III. Comparable Planet Occurrence in the FGK Samples of Campaign 5 and Kepler
• Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- XII. A sample of systems with $K2$ photometry
• The K2-ESPRINT Project VI: K2-105 b, a Hot-Neptune around a Metal-rich G-dwarf
• The K2 & TESS Synergy II: Revisiting 26 systems in the TESS Primary Mission
• TFAW survey. I. Wavelet-based denoising of K2 light curves. Discovery and validation of two new Earth-sized planets in K2 campaign 1
• Dynamical Architectures of S-type Transiting Planets in Binaries I: Target Selection using Hipparcos and Gaia proper motion anomalies
• Optical characterization and Radial velocity monitoring with Belgian and Indian Telescopes (ORBIT): the eclipsing binaries EPIC 211982753 and EPIC 211915147
• The GALAH Survey: Improving our understanding of confirmed and candidate planetary systems with large stellar surveys
• A Spectroscopic Analysis of a Sample of K2 Planet-Host Stars: Stellar Parameters, Metallicities and Planetary Radii
• Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts
• More planetary candidates from K2 Campaign 5 by tran_k2
• The strongly irradiated planets in Praesepe
• Joint Analysis of Multicolor Photometry: A New Approach to Constrain the Nature of Multiple-Star Systems Hosting Exoplanet Candidates
• KIC 10417986: Spectroscopic confirmation of the nature of the binary system with a δ Scuti component
• Stellar Characterization and a Chromospheric Activity Analysis of a K2 Sample of Planet-Hosting Stars
• Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2-18
• TFAW survey II: 6 Newly Validated Planets and 13 Planet Candidates from K2