Kepler pipeline transit signal recovery. III. Virtual Observatory Resource

Authors
  1. Christiansen J.L.
  2. Clarke B.D.
  3. Burke C.J.
  4. Jenkins J.M.
  5. Bryson S.T.,Coughlin J.L.
  6. Mullally F.
  7. Thompson S.E.
  8. Twicken J.D.
  9. Batalha N.M.,Haas M.R.
  10. Catanzarite J.
  11. Campbell J.R.
  12. Uddin A.K.
  13. Zamudio K.,Smith J.C.
  14. Henze C.E.
  15. Published by
    CDS
Abstract

With each new version of the Kepler pipeline and resulting planet candidate catalog, an updated measurement of the underlying planet population can only be recovered with a corresponding measurement of the Kepler pipeline detection efficiency. Here we present measurements of the sensitivity of the pipeline (version 9.2) used to generate the Q1-Q17 DR24 planet candidate catalog. We measure this by injecting simulated transiting planets into the pixel-level data of 159013 targets across the entire Kepler focal plane, and examining the recovery rate. Unlike previous versions of the Kepler pipeline, we find a strong period dependence in the measured detection efficiency, with longer (>40 day) periods having a significantly lower detectability than shorter periods, introduced in part by an incorrectly implemented veto. Consequently, the sensitivity of the 9.2 pipeline cannot be cast as a simple one-dimensional function of the signal strength of the candidate planet signal, as was possible for previous versions of the pipeline. We report on the implications for occurrence rate calculations based on the Q1-Q17 DR24 planet candidate catalog, and offer important caveats and recommendations for performing such calculations. As before, we make available the entire table of injected planet parameters and whether they were recovered by the pipeline, enabling readers to derive the pipeline detection sensitivity in the planet and/or stellar parameter space of their choice.

Keywords
  1. exoplanets
  2. astronomical-models
Bibliographic source Bibcode
2016ApJ...828...99C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/828/99
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/828/99
Document Object Identifer DOI
doi:10.26093/cds/vizier.18280099

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/828/99
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History

2018-03-13T12:17:39Z
Resource record created
2018-03-13T12:17:39Z
Created
2018-05-16T07:00:33Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr