{ "id": "2004.09797", "version": "v1", "published": "2020-04-21T07:52:06.000Z", "updated": "2020-04-21T07:52:06.000Z", "title": "The Axisymmetric Central Configurations of the Four-Body Problem with Three Equal Masses", "authors": [ "Emese Kővári", "Bálint Érdi" ], "comment": "16 pages, 8 figures, appeared in the open-access journal Symmetry (special issue: Astronomy and Symmetry)", "journal": "Symmetry, Vol. 12, No. 4, id. 648 (2020)", "doi": "10.3390/sym12040648", "categories": [ "math-ph", "math.MP" ], "abstract": "In the studied axisymmetric case of the central four-body problem, the axis of symmetry is defined by two unequal-mass bodies, while the other two bodies are situated symmetrically with respect to this axis and have equal masses. Here, we consider a special case of the problem and assume that three of the masses are equal. Using a recently found analytical solution of the general case, we formulate the equations of condition for three equal masses analytically and solve them numerically. A complete description of the problem is given by providing both the coordinates and masses of the bodies. We show furthermore how the three-equal-mass solutions are related to the general case in the coordinate space. The physical aspects of the configurations are also studied and discussed.", "revisions": [ { "version": "v1", "updated": "2020-04-21T07:52:06.000Z" } ], "analyses": { "keywords": [ "equal masses", "axisymmetric central configurations", "general case", "central four-body problem", "unequal-mass bodies" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }