A Transiting Hot Jupiter Orbiting a Metal-Rich Star

TL;DR

This paper reports the discovery of Kepler-6b, a hot Jupiter orbiting a metal-rich star, with detailed measurements of its mass, radius, and orbital period, contributing to exoplanet characterization.

Contribution

First detection of a transiting hot Jupiter around a high-metallicity star with comprehensive physical parameters.

Findings

Planet has 0.67 Jupiter masses and 1.32 Jupiter radii.

Orbital period is 3.235 days.

Host star is more massive and larger than the Sun.

Abstract

We announce the discovery of Kepler-6b, a transiting hot Jupiter orbiting a star with unusually high metallicity, [Fe/H] = +0.34 +/- 0.04. The planet's mass is about 2/3 that of Jupiter, Mp = 0.67 Mj, and the radius is thirty percent larger than that of Jupiter, Rp = 1.32 Rj, resulting in a density of 0.35 g/cc, a fairly typical value for such a planet. The orbital period is P = 3.235 days. The host star is both more massive than the Sun, Mstar = 1.21 Msun, and larger than the Sun, Rstar = 1.39 Rsun.