A PSF-based approach toKepler/K2data – III. Search for exoplanets and variable stars within the open cluster M 67 (NGC 2682)

2016/08/26 by D. Nardiello, M. Libralato, Mattia Libralato +6 · 1 citation
Physics and Astronomy · #Asteroseismology #Astro and Planetary Science #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Exoplanet #Kepler #Light curve #Metallicity #Open cluster #Physics #Planet #Planetary system #Stars #Stellar, planetary, and galactic studies #Variable star #astro-ph.EP #astro-ph.IM #astro-ph.SR

paper · pdf · doi:10.1093/mnras/stw2169

14 pages, 9 figures (1 at low resolution), 3 tables. Accepted for publication in MNRAS on August 24, 2016. Electronic materials are available at http://groups.dfa.unipd.it/ESPG/Kepler-K2.html

openalex publication_date 2016/08/26 · arxiv created 2016/08/30 · arxiv updated 2016/09/07 · openalex created_date 2016/09/16 · openalex updated_date 2026/08/05

Abstract

In the third paper of this series we continue the exploitation of Kepler/K2 data in dense stellar fields using our PSF-based method. This work is focused on a ∼720-arcmin2 region centred on the Solar-metallicity and Solar-age open cluster M 67. We extracted light curves for all detectable sources in the Kepler channels 13 and 14, adopting our technique based on the usage of a high-angular-resolution input catalogue and target-neighbour subtraction. We detrended light curves for systematic errors, and searched for variables and exoplanets using several tools. We found 451 variables, of which 299 are new detection. Three planetary candidates were detected by our pipeline in this field. Raw and detrended light curves, catalogues, and K2 stacked images used in this work will be released to the community.

Citations

• A Technique for Extracting Highly Precise Photometry for the Two-WheeledKeplerMission
• TWO “b”s IN THE BEEHIVE: THE DISCOVERY OF THE FIRST HOT JUPITERS IN AN OPEN CLUSTER
• The end of the white dwarf cooling sequence in M 67
• Multisite campaign on the open cluster M67 – I. Observations and photometric reductions
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• emcee: The MCMC Hammer
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• THE K2 ECLIPTIC PLANE INPUT CATALOG (EPIC) AND STELLAR CLASSIFICATIONS OF 138,600 TARGETS IN CAMPAIGNS 1–8
• Variability among stars in the M 67 field fromKepler/K2-Campaign-5light curves

Cited by

• K2-HERMES II. Planet-candidate properties from K2 Campaigns 1-13