1110.6136 (Norio Narita et al.)

XO-2b: a Prograde Planet with a Negligible Eccentricity, and an Additional Radial Velocity Variation    [PDF]

Norio Narita, Teruyuki Hirano, Bun'ei Sato, Hiroki Harakawa, Akihiko Fukui, Wako Aoki, Motohide Tamura