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Inner Halo Cold Streams in the Era of Gaia

Published online by Cambridge University Press:  17 July 2015

P. Re Fiorentin ,
A. Curir ,
M.G. Lattanzi  and
A. Spagna
P. Re Fiorentin
Affiliation:
INAF – Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
A. Curir
Affiliation:
INAF – Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
M.G. Lattanzi
Affiliation:
INAF – Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
A. Spagna
Affiliation:
INAF – Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
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Abstract

We report on the effect of observational errors when recovering cold streams related to the formation of our Galaxy by analysing the 10% fastest objects within 3 kpc of the “Sun” of an inner halo based on four N− body numerical simulations of the interaction between dwarf galaxies and the Milky Way. Much of the original substructure becomes visible again thanks to the superior precision that Gaia will achieve.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 68: The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases , 2014 , pp. 391
Copyright
© EAS, EDP Sciences, 2015

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