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A Possible Tilted Orbit of the Super-Neptune HAT-P-11b
Teruyuki Hirano, Norio Narita, Avi Shporer +3
We report the detection of the Rossiter-McLaughlin effect for the eccentric, super-Neptune exoplanet HAT-P-11b, based on radial velocity measurements taken with HDS mounted on the…
Measurements of Transit Timing Variations for WASP-5b
Akihiko Fukui, Norio Narita, Paul J. Tristram +34
We have observed 7 new transits of the `hot Jupiter' WASP-5b using a 61 cm telescope located in New Zealand, in order to search for transit timing variations (TTVs) which can be in…
The Rossiter-McLaughlin Effect of the Transiting Exoplanet XO-4b
Norio Narita, Teruyuki Hirano, Roberto Sanchis-Ojeda +5
We report photometric and radial velocity observations of the XO-4 transiting planetary system, conducted with the FLWO 1.2m telescope and the 8.2m Subaru Telescope. Based on the n…
Spin-Orbit Alignment of the TrES-4 Transiting Planetary System and Possible Additional Radial Velocity Variation
Norio Narita, Bun'ei Sato, Teruyuki Hirano +3
We report new radial velocities of the TrES-4 transiting planetary system, including observations of a full transit, with the High Dispersion Spectrograph of the Subaru 8.2m telesc…