Author pages are created from data sourced from our academic publisher partnerships and public sources.
Share This Author
A long-term numerical solution for the insolation quantities of the Earth
We present here a new solution for the astronomical computation of the insolation quantities on Earth spanning from -250 Myr to 250 Myr. This solution has been improved with respect to La93 (Laskar…
Long term evolution and chaotic diffusion of the insolation quantities of Mars
The chaotic motion of the solar system: A numerical estimate of the size of the chaotic zones
- J. Laskar
- Physics, Geology
- 1 December 1990
La2010: a new orbital solution for the long-term motion of the Earth
We present here a new solution for the astronomical computation of the orbital motion of the Earth spanning from 0 to −250 Myr. The main improvement with respect to our previous numerical solution…
Stability of the Astronomical Frequencies Over the Earth's History for Paleoclimate Studies
Calculations suggest that the shortening of the Earth-moon distance and of the length of the day back in time induced a shortened of the fundamental periods for the obliquity and climatic precession over the last half-billion years.
Orbital forcing of the martian polar layered deposits
A correlation exists between ice-layer radiance as a function of depth and the insolation variations in summer at the martian north pole, similar to what has been shown for palaeoclimate studies of the Earth.
Orbital, precessional, and insolation quantities for the earth from -20 Myr to +10 Myr.
The solution for the precession and obliquity of the Earth, issued from the orbital solution La90 (Laskar 1990) is presented. This solution provides the necessary data for the computation of…
An extrasolar planetary system with three Neptune-mass planets
Simulations show that the system of three Neptune-mass planets orbiting the nearby star HD 69830 is in a dynamically stable configuration and theoretical calculations favour a mainly rocky composition for both inner planets, while the outer planet probably has a significant gaseous envelope surrounding its rocky/icy core.
The chaotic obliquity of the planets
Numerical study of the global stability of the spin-axis orientation (obliquity) of the planets against secular orbital perturbations shows that all of the terrestrial planets could have experienced…
Nominal values for selected solar and planetary quantities: IAU 2015 Resolution B3
In this brief communication we provide the rationale for, and the outcome of the International Astronomical Union (IAU) resolution vote at the XXIX-th General Assembly in Honolulu, Hawaii, in 2015,…