TY - JOUR
AU - Zhao, Gang
AB - We report on the detection of a substellar companion orbiting an evolved intermediate-mass (M⋆ = 2.4 M⊙) star HD 14067 (G9 III) using a precise Doppler technique. Either a periodic Keplerian variation with a decreasing linear velocity trend (P = 1455 d, K1 = 92.2 m s−1, e = 0.533, and $\dot {\gamma } = -22.4\:$m s−1 yr−1) or a single Keplerian orbit without linear trend (P = 2850 d, K1 = 100.1 m s−1, and e = 0.697) can be well fitted to the radial velocities of this star. The minimum mass (m2 sin i = 7.8 MJ for the model with a linear trend, or m2 sin i = 9.0 MJ for the model without a linear trend) suggests a long-period giant planet orbiting an evolved intermediate-mass star. The eccentricity of the orbit is among the highest ones ever detected for planets moving around evolved stars.
TI - A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067
JO - Publications of the Astronomical Society of Japan
DO - 10.1093/pasj/psu113
DA - 2014-12-01
UR - https://www.deepdyve.com/lp/oxford-university-press/a-long-period-eccentric-substellar-companion-to-the-evolved-0S7UE7cHZU
SP - 118
VL - 66
IS - 6
DP - DeepDyve
ER -