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153 papers · 1 filter
The Mass of Kepler-93b and The Composition of Terrestrial Planets
Courtney D. Dressing, David Charbonneau, Xavier Dumusque +32
Kepler-93b is a 1.478 +/- 0.019 Earth radius planet with a 4.7 day period around a bright (V=10.2), astroseismically-characterized host star with a mass of 0.911+/-0.033 solar mass…
Phase-space noncommutative extension of the Robertson-Schroedinger formulation of Ozawa's uncertainty principle
Catarina Bastos, Alex E. Bernardini, Orfeu Bertolami +2
We revisit Ozawa's uncertainty principle (OUP) in the framework of noncommutative (NC) quantum mechanics. We derive a matrix version of OUP accommodating any NC structure in the ph…
Decay constants of the pion and its excitations in holographic QCD
Alfonso Ballon-Bayona, Gastao Krein, Carlisson Miller
We investigate the leptonic decay constants of the pion and its excitations with a 5-d holographic model for quantum chromodynamics. We prove numerically that the leptonic decay co…
The HARPS search for southern extra-solar planets XXXVI: Five new long-period giant planets and a system update
C. Moutou, G. Lo Curto, M. Mayor +10
We describe radial-velocity time series obtained by HARPS on the 3.60 m telescope in La Silla (ESO, Chile) over ten years and report the discovery of five new giant exoplanets in d…
Characterizing K2 Planet Discoveries: A super-Earth transiting the bright K-dwarf HIP 116454
Andrew Vanderburg, Benjamin T. Montet, John Asher Johnson +43
We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1-dwarf with high proper moti…
Li abundances in F stars: planets, rotation and galactic evolution
E. Delgado Mena, S. Bertrán de Lis, V. Zh. Adibekyan +7
We find that hot jupiter host stars within the T range 5900-6300K show lower Li abundances, by 0.14 dex, than stars without detected planets. This offset has a signi…