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4 papers · 2 filters
Could the 47 UMa Planetary System be a Second Solar System: predicting the Earth-like planets
Jianghui Ji, Lin Liu, H. Kinoshita +1
(Abridged)We numerically investigated the dynamical architecture of 47 UMa with the planetary configuration of the best-fit orbital solutions by Fischer et al. We systematically st…
Radio-quiet neutron star 1E 1207.4-5209: a possible strong Gravitational-wave source
B. P. Gong
There are four puzzles on 1E 1207.4-5209: (1) the characteristic age of the pulsar is much higher than the estimated age of the supernova remnant; (2) the magnetic field inferred f…
On the nature of the radio quiet X-ray neutron star 1E 1207.4-5209
Biping Gong, G. F. Bignami
The strange timing property of X-ray pulsar 1E 1207.4-5209 can be explained by the hypothesis that it is a member of an ultra-compact binary system. This paper confronts the ultra-…
The Stable Topology of the Planetary Systems of two 2:1 Resonant Companions:Application to HD 82943
Ji Jianghui, H. Kinoshita, Liu Lin +2
We have numerically explored the stable planetary geometry for the multiple systems involved in a 2:1 mean motion resonance, and herein we mainly study the HD 82943 system by emplo…