A Common Proper Motion Stellar Companion to HAT-P-7
Sep 20, 2012 ... Norio Narita,1,25 Yasuhiro H. Takahashi,1,2 Masayuki Kuzuhara,1,3 Teruyuki ... 13 Exoplanets and Stellar Astrophysics Laboratory, Code 667, ... We revisit the migration mechanism of HAT-P-7b given the ... Jupiters have tilted or even retrograde orbits relative to their host star's spin (e.g., Hébrard et al.
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PDF (871.2 KB) - EPJ Web of Conferences
181-8588,[email protected] ... migration mechanism one-by-one for an eccentric or tilted planet. ... The discovery of about 500 extrasolar planets and the diversity of their orbital distribu- ... orbit alignment angles alone. .... have a highly tilted or even retrograde orbit based on the Rossiter-McLaughlin mea-.
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THE PROGRADE ORBIT OF EXOPLANET TrES-2b1 - IOPscience
Norio Narita,. 5 ... face of the star is tilted by А9. Ж 12 ... of spin-orbit alignment have been reported (Queloz et al. 2000; ... ever, some theories of planetary migration—proposed to explain .... the uncertainties in the photometric parameters and their co- ..... ing mechanisms that are of the same magnitude as the rotation.
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arXiv:1008.3803v1 [astro-ph.EP] 23 Aug 2010 - [email protected]
Aug 23, 2010 ... Norio Narita,1 Teruyuki Hirano,2 Roberto Sanchis-Ojeda,3 Joshua N. Winn,3 ... The discovery of highly tilted orbits, and retrograde orbits, has been taken as ... by discriminating planetary migration mechanisms for individual planetary systems. ... The subject of this letter is the transiting exoplanet XO-4b, ...
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The Rossiter-McLaughlin effect for exoplanets - Cambridge Journals
for exoplanets ... implications for theories of planet formation and migration. ... are thought to have formed on well-aligned circular orbits, there are reasons to ... tilt. ( right) produces a blueshift throughout the transit. From Gaudi & Winn (2007). ... the RM effect of six systems, half of which showed evidence for retrograde orbits.
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学位論文（要約） 平成２５年１２月博士（理学） 申請 東京大学大学院理学
to their parent stars, planetary migration mechanisms have been invoked. ... for all of their samples could be explained in terms of planet-planet scattering and an aligned model, ... I also wish to express my great gratitude to my collaborator, Dr. Norio Narita, who ... 5 Observations of Eccentric or Tilted Exoplanet Host Stars.
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The Prograde Orbit of Exoplanet TrES-2b
Apr 14, 2008 ... the planet's trajectory across the face of the star is tilted by −9±12 deg relative ... they orbit their host stars in the prograde direction, relative to the ... A close alignment between the orbital and rotational axes seems ..... found that this migration mechanism produces a very broad range of final inclinations,.
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