R
R. Paul Butler
Researcher at Carnegie Institution for Science
Publications - 93
Citations - 10242
R. Paul Butler is an academic researcher from Carnegie Institution for Science. The author has contributed to research in topics: Planet & Exoplanet. The author has an hindex of 42, co-authored 93 publications receiving 9544 citations. Previous affiliations of R. Paul Butler include San Francisco State University & Carnegie Learning.
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Journal ArticleDOI
The Keck Planet Search: Detectability and the Minimum Mass and Orbital Period Distribution of Extrasolar Planets
Andrew Cumming,R. Paul Butler,Geoffrey W. Marcy,Steven S. Vogt,Jason T. Wright,Debra A. Fischer +5 more
TL;DR: In this article, the authors analyzed 8 years of precise radial velocity measurements from the Keck Planet Search, characterizing the detection threshold, selection effects, and completeness of the survey.
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Obliquities of Hot Jupiter host stars: Evidence for tidal interactions and primordial misalignments
Simon Albrecht,Joshua N. Winn,John Asher Johnson,John Asher Johnson,Andrew W. Howard,Geoffrey W. Marcy,R. Paul Butler,Pamela Arriagada,Jeffrey D. Crane,Stephen A. Shectman,Ian B. Thompson,Teruyuki Hirano,Gáspár Á. Bakos,Gáspár Á. Bakos,Joel D. Hartman +14 more
TL;DR: In this article, the Rossiter-McLaughlin effect was used to show that the obliquities of stars with close-in giant planets were initially nearly random, and that the low-obliquity that are often observed are a consequence of star-planet tidal interactions.
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Radial Velocities for 889 Late-Type Stars*
David L. Nidever,Geoffrey W. Marcy,Geoffrey W. Marcy,R. Paul Butler,Debra A. Fischer,Steven S. Vogt +5 more
TL;DR: In this article, the authors report radial velocities for 844 FGKM-type main-sequence and subgiant stars and 45 K giants, most of which had either low-precision velocity measurements or none at all.
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A Planetary Companion to 70 Virginis
TL;DR: In this paper, an extremely low mass companion to the solar-type star 70 Virginis is inferred from the observed periodic Doppler reflex motion of the primary during 8 yr. The minimum mass (M2 sin i) of 70 Vir "B" is 6.6-9 MJ, which falls in the mass range associated with "extrasolar giant planets" (0.3-15 MJ).
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Three New “51 Pegasi-Type” Planets*
R. Paul Butler,R. Paul Butler,Geoffrey W. Marcy,Geoffrey W. Marcy,Eric Williams,Heather M. Hauser,Phil Shirts +6 more
TL;DR: For the three stars HR 3522 (G8V), HR 5185 (F7V), and HR 458 (F8V) as discussed by the authors, the velocity semiamplitude is 77 m s-1 and a period of 14.65 days, implying a semimajor axis of 0.11 AU and a minimum mass for the companion of M2 sin i = 0.84MJUP.