Adaptive optics images. III. 87 Kepler objects of interest

Courtney D. Dressing, Elisabeth R. Adams, Andrea K. Dupree, Craig Kulesa, Donald W Mccarthy

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The Kepler mission has revolutionized our understanding of exoplanets, but some of the planet candidates identified by Kepler may actually be astrophysical false positives or planets whose transit depths are diluted by the presence of another star. Adaptive optics images made with ARIES at the MMT of 87 Kepler Objects of Interest place limits on the presence of fainter stars in or near the Kepler aperture. We detected visual companions within 1″ for 5 stars, between 1″ and 2″ for 7 stars, and between 2″ and 4″ for 15 stars. For those systems, we estimate the brightness of companion stars in the Kepler bandpass and provide approximate corrections to the radii of associated planet candidates due to the extra light in the aperture. For all stars observed, we report detection limits on the presence of nearby stars. ARIES is typically sensitive to stars approximately magnitudes fainter than the target star within 1″ and approximately magnitudes fainter within 2″, but can detect stars as faint as ΔKs = 7.5 under ideal conditions.

Original languageEnglish (US)
Article number78
JournalAstronomical Journal
Volume148
Issue number5
DOIs
StatePublished - Nov 1 2014

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adaptive optics
planet
stars
planets
apertures
Kepler mission
companion stars
extrasolar planets
transit
astrophysics
brightness
radii
estimates

Keywords

  • binaries: general
  • instrumentation: adaptive optics
  • planets and satellites: detection

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Adaptive optics images. III. 87 Kepler objects of interest. / Dressing, Courtney D.; Adams, Elisabeth R.; Dupree, Andrea K.; Kulesa, Craig; Mccarthy, Donald W.

In: Astronomical Journal, Vol. 148, No. 5, 78, 01.11.2014.

Research output: Contribution to journalArticle

Dressing, Courtney D. ; Adams, Elisabeth R. ; Dupree, Andrea K. ; Kulesa, Craig ; Mccarthy, Donald W. / Adaptive optics images. III. 87 Kepler objects of interest. In: Astronomical Journal. 2014 ; Vol. 148, No. 5.
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