K2-113b: A dense hot-Jupiter transiting a solar analogue
| Autor: | Espinoza, Néstor, Rabus, Markus, Brahm, Rafael, Jones, Matías, Jordán, Andrés, Rojas, Felipe, Drass, Holger, Vučković, Maja, Hartman, Joel D., Jenkins, James S., Cortés, Cristián |
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| Rok vydání: | 2016 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1093/mnras/stx1862 |
| Popis: | We present the discovery of K2-113b, a dense hot-Jupiter discovered using photometry from Campaign 8 of the Kepler-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 $P=5.81760^{+0.00003}_{-0.00003}$ day orbit, has a radius of $0.93^{+0.10}_{-0.07}R_J$ and a mass of $1.29^{+0.13}_{-0.14}M_J$. With a density of $1.97^{+0.60}_{-0.53}$ gr/cm$^3$, the planet is among the densest systems known having masses below 2 $M_J$ and $T_{eq} > 1000$, 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 K2-113b should have a heavy element content on the order of $\sim$ 110 $M_{\oplus}$ or greater. Comment: 8 pages, 7 figures. Accepted to MNRAS; added new photometry from newest version of EVEREST, which allows for a constrain on the secondary eclipse depth |
| Databáze: | arXiv |
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