2 papers
physics.geo-ph2002
An additional planet as a model for the Pleistocene Ice Age
W. Woelfli, W. Baltensperger, R. Nufer
We propose a model for the Pleistocene Ice Age, assuming the following scenario: Between 3 Myr and 11.5 kyr BP a Mars-sized object existed which moved in a highly eccentric orbit.…
astro-ph1999
Long term behavior of a hypothetical planet in a highly eccentric orbit
R. Nufer, W. Baltensperger, W. Woelfli
For a hypothetical planet on a highly eccentric orbit, we have calculated the osculating orbital parameters and its closest approaches to Earth and Moon over a period of 750 kyr. T…