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Keywords

galaxies: dwarf
Galaxies: general
Local Group

How to Cite

Could a Collision Between a Ghost Galaxy and the Milky Way be the Origin of the VPOS or DoS?. (2018). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 50, 15-16. https://astronomia.unam.mx/journals/rmxac/article/view/2018rmxac..50...15b
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Abstract

At present within the area of astrophysics there are a number of unresolved problems, including the origin of the satellite galaxies of the Milky Way. Most of these galaxies are characterized as dwarf spheroidal galaxies. The large majority of them is distributed in a disk-like structure which is arranged almost perpendicular to the plane of the Galaxy, this structure is known as disk of satellites (DoS) or Vast Polar structure of Satellite galaxies (VPoS). So far there is not a model that fully reproduces the amount and spatial distribution of these galaxies. However there have been several proposed for the solutions, one of which suggests that these originated in the collision of two disk galaxies billions of years ago. Using the Gadget2 software, we have performed N-bodies numerical simulations of the collision between two disk galaxies that could give rise to disk of Milky Way satellites.