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10 papers · 2 filters
How do Most Planets Form? -- Constraints on Disk Instability from Direct Imaging
Markus Janson, Mariangela Bonavita, Hubert Klahr +1
Core accretion and disk instability have traditionally been regarded as the two competing possible paths of planet formation. In recent years, evidence have accumulated in favor of…
55 Cancri: A Coplanar Planetary System that is Likely Misaligned with its Star
Nathan A. Kaib, Sean N. Raymond, Martin J. Duncan
Although the 55 Cnc system contains multiple, closely packed planets that are presumably in a coplanar configuration, we use numerical simulations to demonstrate that they are like…
Sedna and the Oort Cloud Around a Migrating Sun
Nathan A. Kaib, Rok Roškar, Thomas Quinn
Recent numerical simulations have demonstrated that the Sun's dynamical history within the Milky Way may be much more complex than that suggested by its current low peculiar veloci…
A giant planet in the triple system HD132563
S. Desidera, E. Carolo, R. Gratton +10
As part of our radial velocity planet-search survey performed with SARG at TNG, we monitored the components of HD 132563 for ten years. It is a binary system formed by two rather s…
High-contrast Imaging Search for Planets and Brown Dwarfs around the Most Massive Stars in the Solar Neighborhood
Markus Janson, Mariangela Bonavita, Hubert Klahr +3
There has been a long-standing discussion in the literature as to whether core accretion or disk instability is the dominant mode of planet formation. Over the last decade, several…
A Super-Earth Transiting a Naked-Eye Star
Joshua N. Winn, Jaymie M. Matthews, Rebekah I. Dawson +11
We have detected transits of the innermost planet "e" orbiting 55 Cnc (V=6.0), based on two weeks of nearly continuous photometric monitoring with the MOST space telescope. The tra…