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The planet nine hypothesis
Over the course of the past two decades, observational surveys have unveiled the intricate orbital structure of the Kuiper Belt, a field of icy bodies orbiting the Sun beyond Neptune. In addition toExpand
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The NASA-UC-UH ETA-Earth Program. IV. A Low-mass Planet Orbiting an M Dwarf 3.6?PC from Earth
We report the discovery of a low-mass planet orbiting Gl 15 A based on radial velocities from the Eta-Earth Survey using HIRES at Keck Observatory. Gl 15 Ab is a planet with minimum mass M sin i =Expand
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A giant planet candidate transiting a white dwarf.
Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs. During the red giantExpand
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Precise Masses in the WASP-47 System
Funding: European Union Seventh Framework Programme (FP7/2007-2013) under Grant Agreement n.313014 (ETAEARTH). Parts of this work have been supported by NASA under grants No. NNX15AC90G andExpand
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Extracting Radial Velocities of A- and B-type Stars from Echelle Spectrograph Calibration Spectra
We present a technique to extract radial velocity measurements from echelle spectrograph observations of rapidly rotating stars ($V\sin{i} \gtrsim 50$ km s$^{-1}$). This type of measurement isExpand
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Discovery and physical characterization of a large scattered disk object at 92 au
We report the observation and physical characterization of the possible dwarf planet 2014 UZ224 ("DeeDee"), a dynamically detached trans-Neptunian object discovered at 92 au. This object is currentlyExpand
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Five Planets Transiting a Ninth Magnitude Star
The Kepler mission has revealed a great diversity of planetary systems and architectures, but most of the planets discovered by Kepler orbit faint stars. Using new data from the K2 mission, weExpand
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Evaluating the Dynamical Stability of Outer Solar System Objects in the Presence of Planet Nine
We evaluate the dynamical stability of a selection of outer solar system objects in the presence of the proposed new Solar System member Planet Nine. We use a Monte Carlo suite of numerical N-bodyExpand
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Exterior Companions to Hot Jupiters Orbiting Cool Stars are Coplanar
The existence of hot Jupiters has challenged theories of planetary formation since the first extrasolar planets were detected. Giant planets are generally believed to form far from their host stars,Expand
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TESS Spots a Compact System of Super-Earths around the Naked-Eye Star HR 858
Transiting Exoplanet Survey Satellite (TESS) observations have revealed a compact multi-planet system around the sixth-magnitude star HR 858 (TIC 178155732, TOI 396), located 32 parsecs away. ThreeExpand
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