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Detection of Galactic Center source G2 at 3.8 m during periapse passage
Gunther Witzel, Andrea M. Ghez, Mark R. Morris +14
We report new observations of the Galactic Center source G2 from the W. M. Keck Observatory. G2 is a dusty red object associated with gas that shows tidal interactions as it nears…
Formation of Dark Matter Torii Around Supermassive Black Holes Via The Eccentric Kozai-Lidov Mechanism
Smadar Naoz, Joseph Silk
We explore the effects of long term secular perturbations on the distribution of dark matter particles around Supermassive Black Hole (BH) binaries. We show that in the hierarchica…
The Dynamics of the Multi-planet System Orbiting Kepler-56
Gongjie Li, Smadar Naoz, Francesca Valsecchi +2
Kepler-56 is a multi-planet system containing two coplanar inner planets that are in orbits misaligned with respect to the spin axis of the host star, and an outer planet. Various…
Globular Clusters and Dark Satellite Galaxies through the Stream Velocity
Smadar Naoz, Ramesh Narayan
The formation of purely baryonic globular clusters with no gravitationally bound dark matter is still a theoretical challenge. We show that these objects might form naturally whene…
Chaos in the Test Particle Eccentric Kozai-Lidov Mechanism
Gongjie Li, Smadar Naoz, Matt Holman +1
The Kozai-Lidov mechanism can be applied to a vast variety of astrophysical systems involving hierarchical three-body systems. Here, we study the Kozai-Lidov mechanism systematical…
Mergers and Obliquities in Stellar Triples
Smadar Naoz, Daniel C. Fabrycky
Many close stellar binaries are accompanied by a far-away star. The "eccentric Kozai-Lidov" (EKL) mechanism can cause dramatic inclination and eccentricity fluctuations, resulting…