RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

Galactic Orbits:High-Velocity Stars
High-Velocity Stars:Galactic Orbits
High-Velocity Stars:Visual Binaries
Visual Binaries:High-Velocity Stars

How to Cite

The galactic orbit of the remarkable high-velocity wide binary LDS 519. (1987). Revista Mexicana De Astronomía Y Astrofísica, 14(1), 213-222. https://astronomia.unam.mx/journals/rmxaa/article/view/1987rmxaa..14..213a

Abstract

The nature of the high-velocity, nearby, wide binary LDS 519 is discussed, and arguments are given against a possible extragalactic origin for this object. Its space velocity is shown to be lower than the escape velocity if the galaxy has a massive halo; therefore, a galactic origin for this binary is suggested. The galactic orbit of LDS 519 is numerically integrated using a realistic model for the galactic mass distribution. On the basis of the information provided by the orbit a possible scenario for the origin of LDS 519 is proposed.
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