Tuesday, May 31, 2016

A Young and Massive Hot-Jupiter


Johns-Krull et al. (2016) present the identification of a massive hot-Jupiter in a ~9 day period orbit around the classical T Tauri star CI Tau. The detection of this planet was made through high-resolution infrared and optical radial velocity measurements. The amplitude of the radial velocity signal suggests that this massive hot-Jupiter has about 11 to 12 times the mass of Jupiter. CI Tau is a very young star with an age of only ~2 million years. The detection of more gas giant planets in close-in orbits around other young stars can shed more light on the planet formation process and on the survivability of massive planets in close-in orbits around young stars. A greater prevalence of hot-Jupiters around young stars compared to older stars may indicate that the destruction of hot-Jupiters around young stars is a common phenomenon.

Infrared and optical radial velocity measurements indicating the presence of a massive hot-Jupiter in a ~9 day period orbit around the classical T Tauri star CI Tau. Johns-Krull et al. (2016)

Reference:
Johns-Krull et al. (2016), "A Candidate Young Massive Planet in Orbit around the Classical T Tauri Star CI Tau", arXiv:1605.07917 [astro-ph.EP]