A Third Planet Orbiting HIP 14810

TL;DR

This paper reports the discovery and characterization of a third planet orbiting HIP 14810, including precise radial velocity measurements, orbital solutions, and stability analysis, expanding knowledge of multi-planet systems.

Contribution

The study provides the first detailed orbital solution for a three-planet system around HIP 14810 based on new radial velocity data.

Findings

Three planets with minimum masses of 3.9, 1.3, and 0.6 M_Jup

Orbital periods of 6.67, 147.7, and 952 days

Inner planet does not transit

Abstract

We present new precision radial velocities and a three-planet Keplerian orbit fit for the V = 8.5, G5 V star HIP 14810. We began observing this star at Keck Observatory as part of the N2K Planet Search Project. Wright et al. (2007) announced the inner two planets to this system, and subsequent observations have revealed the outer planet planet and the proper orbital solution for the middle planet. The planets have minimum masses of 3.9, 1.3, and 0.6 M_Jup and orbital periods of 6.67, 147.7, and 952 d, respectively. We have numerically integrated the family of orbital solutions consistent with the data and find that they are stable for at least 10^6 yr. Our photometric search shows that the inner planet does not transit.