K2-113: A dense hot-Jupiter transiting a solar analogue

Néstor Espinoza, Markus Rabus, Rafael Brahm, Matías Jones, Andrés Jordán, Felipe Rojas, Holger Drass, Maja Vučković, Joel D. Hartman, James S. Jenkins, Cristián Cortés

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8 Scopus citations


We present the discovery of K2-113, a dense hot-Jupiter discovered using photometry from Campaign 8 of theKepler-2 (K2) mission and high-resolution spectroscopic follow-up obtained with the FEROS spectrograph. The planet orbits a V = 13.68 solar analogue in a P = 5.817 60-0.000 03+0.000 03 d orbit, and has a radius of 0.93+0.10-0.07RJ and a mass of 1.29-0.14+0.13 MJ. With a density of 1.97-0.53+0.60 g cm-3, the planet is among the densest systems known having masses below 2 MJ and Teq > 1000, and is just above the temperature limit at which inflation mechanisms are believed to start being important. Based on its mass and radius, we estimate that K2-113 should have a heavy element content of the order of ~110 M⊕ or greater.

Original languageEnglish (US)
Pages (from-to)4374-4380
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Issue number4
StatePublished - 2017

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Planets and satellites: composition
  • Planets and satellites: detection


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