A PRACTICAL LONG-PERIOD SEISMOGRAPH

Establishment of a Long-period Seismograph Network Utilizing Magnetic Tae Recording

A Long Gestation Period

Long Period Exoplanets

Recent imaging campaigns indicate the possible existence of massive planets on ∼> 1000 year orbits about a few percent of normal stars. Such objects are not easily explained in most current planet formation models. In this Letter we use a large ensemble of N-body simulations to evaluate the potential for planet scattering during relaxation of dynamically active systems to explain very long peri...

Long Period Fibre Gratings

Evidence for a Long - period Planet

High precision radial velocity (RV) measurements spanning the years 1980.8–2000.0 are presented for the nearby (3.22 pc) K2 V star ǫ Eri. These data, which represent a combination of six independent data sets taken with four different telescopes, show convincing variations with a period of ≈ 7 yrs. A least squares orbital solution using robust estimation yields orbital parameters of period, P =...