1997/10/24 by Mattias Wahde, M. Wahde · 3 citations
Computer Science · Physics and Astronomy · #Algorithm #Artificial intelligence #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Computer science #Galaxies: Formation, Evolution, Phenomena #Galaxy #Genetic algorithm #Metaheuristic Optimization Algorithms Research #Noise (video) #Orbital elements #Orbital mechanics #Physics #Position (finance) #Satellite #astro-ph
paper · pdf · doi:10.1051/aas:1998450
12 pages, 9 Postscript figures. Uses l-aa.sty and psfig.sty
arxiv created 1997/10/24 · openalex publication_date 1998/11/01 · arxiv updated 2009/12/01 · openalex created_date 2022/10/06 · openalex updated_date 2026/07/31
A method for determining the orbital parameters of interacting pairs of galaxies is presented and evaluated using artificial data. The method consists of a genetic algorithm which can search efficiently through the very large space of possible orbits. It is found that orbital parameters close to the actual orbital parameters of the pair can in general be found, even in the presence of fairly high levels of noise in the data. Both position and velocity data can be employed, but if no velocity data are available, the orbital parameters can be determined using position data only. The inner regions of the galaxies, which are difficult to model, can be neglected, and the orbital parameters can be determined using the remaining information.