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Dynamics of two planets in the 3/2 mean-motion resonance: Application to the planetary system of the pulsar PSR B1257+12
(Springer, 2006-04-01)
This paper considers the dynamics of two planets, as the planets B and C of the pulsar PSR B1257+12, near a 3/2 mean-motion resonance. A two-degrees-of-freedom model, in the framework of the general three-body planar ...
Multi-planet extrasolar systems - detection and dynamics
(NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCESBEIJING, 2012)
20 years after the discovery of the first planets outside our solar system, the current exoplanetary population includes more than 700 confirmed planets around main sequence stars. Approximately 50% belong to multiple-planet ...
Seasonally steady planetary disturbances in the troposphere and stratosphere as seen in 30 years of NCEP reanalysis data
(Elsevier Sci Ltd, 2013-03)
Zonal velocity and temperature daily global reanalysis data of 30 years are used to search seasonally steady planetary disturbances in the middle troposphere (400 hPa) and middle stratosphere (10 hPa). Significant wavenumber ...
Thermo-mechanical rice flour modification by planetary ball milling
(Elsevier Science, 2014-01)
Planetary ball milling is presented as an alternative way to improve the native flour properties by physical modification. A grinding protocol was developed by combination of grinding and pause stages. The effect of ...
Exploring the orbital evolution of planetary systems
(Institute of Physics Publishing, 2017)
The aim of this paper is to encourage the use of orbital integrators in the classroom to discover and understand the long term dynamical evolution of systems of orbiting bodies. We show how to perform numerical simulations ...
Age distribution of the central stars of galactic disk planetary nebulae
(EDP SCIENCES S A, 2010)
Context. Determination of the ages of central stars of planetary nebulae (CSPN) is a complex problem, and there is presently no single method that can be generally applied. We have developed several methods of estimating ...
Reliability of orbital fits for resonant extrasolar planetary systems: the case of HD82943
(BLACKWELL PUBLISHING, 2008)
We perform a statistical study of the process of orbital determination of the HD82943 extrasolar planetary system, using the current observational data set of N = 165 radial velocity (RV) measurements. Our aim is to analyse ...
PLANETARY NEBULAE IN THE INNER MILKY WAY: NEW ABUNDANCES
(UNIV NACIONAL AUTONOMA MEXICO, INST DE ASTRONOMIA, 2010)
The study of planetary nebulae in the inner-disk and bulge gives important information on the chemical abundances of elements such as He, N, O, Ar, Ne, and on the evolution of these abundances, which is associated with the ...