Radial velocities of HAT-P-17

We present the measured projected obliquity -the sky-projected angle between the stellar spin axis and orbital angular momentum- of the inner planet of the HAT-P-17 multi-planet...本研究报道了HAT-P-17多行星系统内行星的实测投影倾角（projected obliquity）的相关测量数据，该倾角即恒星自转轴（stellar spin axis）与轨道角动量（orbital angular momentum）之间的天球投影角。