| Issue |
EPJ Web of Conferences
Volume 19, 2012
Assembling the Puzzle of the Milky Way
|
|
|---|---|---|
| Article Number | 03006 | |
| Number of page(s) | 3 | |
| Section | Inside Galaxy Stubs or Relics of First Stubs: Stellar Populations in the New Milky Way Satellites | |
| DOI | https://doi.org/10.1051/epjconf/20121903006 | |
| Published online | 07 February 2012 | |
https://doi.org/10.1051/epjconf/20121903006
Counter-orbiting tidal debris as the origin of the MW DoS
Argelander Institute of Astronomy, Auf dem Hügel 71, 53121 Bonn, Germany
a e-mail: mpawlow@astro.uni-bonn.de
The Milky Way satellite galaxies show a phase-space distribution that is not expected from the standard scenario of galaxy formation. This is a strong hint at them being of tidal origin, which would naturally explain their spacial distribution in a disc of satellites. It is shown that also their orbital directions can be reproduced with the debris of galaxy collisions. Both co- and counter-orbiting satellites are formed naturally in merger and fly-by interactions.
© Owned by the authors, published by EDP Sciences, 2012
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