Transiting exoplanets from the CoRoT space mission. XII. CoRoT-12b: a short-period low-density planet transiting a solar analog star

TL;DR

The paper reports the discovery and characterization of CoRoT-12b, a low-density giant exoplanet with a short orbital period, transiting a solar-like star, using data from the CoRoT space mission.

Contribution

It presents the detection and detailed analysis of CoRoT-12b, including its physical properties and implications for models of irradiated giant planets.

Findings

CoRoT-12b has a mass of 0.92 Jupiter masses.

It has a radius of 1.44 Jupiter radii.

The planet's low density aligns with standard irradiated planet models.

Abstract

We report the discovery by the CoRoT satellite of a new transiting giant planet in a 2.83 days orbit about a V=15.5 solar analog star (M_* = 1.08 +- 0.08 M_sun, R_* = 1.1 +- 0.1 R_sun, T_eff = 5675 +- 80 K). This new planet, CoRoT-12b, has a mass of 0.92 +- 0.07 M_Jup and a radius of 1.44 +- 0.13 R_Jup. Its low density can be explained by standard models for irradiated planets.