Thursday, 21 August 2008
ufo
Two researchers at Kobe University in Japan considering that exists in our Solar System an external mass planet beyond Pluto.
On the basis of numerical simulations, Professor Tadashi Mukai Japanese and American researcher Patryck Sofia Lykawka suggest that the presence of an external world, whose mass is between 3 and 7 tenths that of Earth, could explain the structure orbital belt trans-neptunienne (belt Edgeworth-Kuiper).
This massive body, dubbed "Planet X", was probably ejected by one of the giant planets, which has changed the original disc planétésimal the levels observed at 40-50 AU and a truncated to about 48 AU before migration of the planet. The outer planet has acquired a subsequent stable orbit inclined (> 100 AU; 20-40 degrees) because of an interaction of resonance with Neptune guaranteeing the stability of the trans-belt neptunienne.
The work of two researchers were presented at the 39th annual meeting of the Division for Planetary Sciences of the American Astronomical Society held in October 2007 in Orlando, Florida. Submitted in December 2007, their paper was accepted for publication in The Astronomical Journal and the work of the team will be published in April.
by erectusplus at 23:51 |
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