3 papers
astro-ph2001
Search for Nemesis Encounters with Vega, epsilon Eridani, and Fomalhaut
J. -M. Deltorn, P. Kalas
We calculate the space motions of 21,497 stars to search for close stellar encounters with Vega, epsilon Eridani and Fomalhaut during the past 1 Myr. We discover that epsilon Erida…
astro-ph2001
An Adaptive Optics Survey for Companions to Stars with Extra-Solar Planets
J. P. Lloyd, M. C. Liu, J. R. Graham +12
We have undertaken an adaptive optics (AO) imaging survey of extrasolar planetary systems and stars showing interesting radial velocity trends from high precision radial velocity s…
astro-ph2000
A stellar fly-by simulation giving Beta Pic's disc asymmetries
J. Larwood, P. Kalas
We have numerically investigated the dynamics of how a close stellar fly-by encounter of a symmetrical circumstellar planetesimal disc can give rise to the many kinds of asymmetrie…