SPITZER OBSERVATIONS of EXOPLANETS DISCOVERED with the KEPLER K2 MISSION

Charles Beichman, John Livingston, Michael Werner, Varoujan Gorjian, Jessica Krick, Katherine Deck, Heather Knutson, Ian Wong, Erik Petigura, Jessie Christiansen, David Ciardi, Thomas P. Greene, Joshua E. Schlieder, Mike Line, Ian Crossfield, Andrew Howard, Evan Sinukoff

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We have used the Spitzer Space Telescope to observe two transiting planetary systems orbiting low-mass stars discovered in the Kepler K2 mission. The system K2-3 (EPIC 201367065) hosts three planets, while K2-26 (EPIC 202083828) hosts a single planet. Observations of all four objects in these two systems confirm and refine the orbital and physical parameters of the planets. The refined orbital information and more precise planet radii possible with Spitzer will be critical for future observations of these and other K2 targets. For K2-3b we find marginally significant evidence for a transit timing variation between the K2 and Spitzer epochs.

Original languageEnglish (US)
Article number39
JournalAstrophysical Journal
Volume822
Issue number1
DOIs
StatePublished - May 1 2016
Externally publishedYes

Keywords

  • planets and satellites: dynamical evolution and stability
  • planets and satellites: gaseous planets

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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