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24 papers · 2 filters
Signals embedded in the radial velocity noise. Periodic variations in the tau Ceti velocities
Mikko Tuomi, Hugh R. A. Jones, James S. Jenkins +12
The abilities of radial velocity exoplanet surveys to detect the lowest-mass extra-solar planets are currently limited by a combination of instrument precision, lack of data, and "…
Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307
Mikko Tuomi, Guillem Anglada-Escude, Enrico Gerlach +5
The K2.5 dwarf HD 40307 has been reported to host three super-Earths. The system lacks massive planets and is therefore a potential candidate for having additional low-mass planeta…
A Self-Consistent Model of the Circumstellar Debris Created by a Giant Hypervelocity Impact in the HD172555 System
B. C. Johnson, C. M. Lisse, C. H. Chen +8
Spectral modeling of the large infrared excess in the Spitzer IRS spectra of HD 172555 suggests that there is more than 10^19 kg of sub-micron dust in the system. Using physical ar…
GJ 1214b revised. Improved trigonometric parallax, stellar parameters, orbital solution, and bulk properties for the super-Earth GJ 1214b
Guillem Anglada-Escudé, Bárbara Rojas-Ayala, Alan P. Boss +2
GJ 1214 is orbited by a transiting super-Earth-mass planet. It is a primary target for ongoing efforts to understand the emerging population of super-Earth-mass planets around M dw…
2011 HM102: Discovery of a High-Inclination L5 Neptune Trojan in the Search for a post-Pluto New Horizons Target
Alex H. Parker, Marc W. Buie, David J. Osip +20
We present the discovery of a long-term stable L5 (trailing) Neptune Trojan in data acquired to search for candidate Trans-Neptunian objects for the New Horizons spacecraft to fly…
The Color Differences of Kuiper Belt Objects in Resonance with Neptune
Scott S. Sheppard
(Abridged) New optical colors of 58 objects in mean motion resonances with Neptune show the various resonant populations have significantly different color distributions. The 5:3 a…