4 papers
On the phase-space structure of the Milky Way dark-matter halo
Amina Helmi, Volker Springel, Simon D. M. White
We analyse a high resolution simulation of the formation of a cluster's dark-matter halo in a CDM cosmology (Springel et al. 2001). The resolution achieved allows us to map the…
Halo streams as relicts from the formation of the Milky Way
Amina Helmi
In this contribution we discuss the expected properties of our halo if our Galaxy had been built from mergers of smaller systems. Using both analytic arguments and high-resolution…
Detecting Halo Streams with GAIA
Amina Helmi, HongSheng Zhao, P. Tim de Zeeuw
We investigate what the proposed ESA astrometric satellite GAIA will reveal by observing the halo of the Milky Way. Specifically, we look for halo streams which are the signatures…
Building up the Stellar Halo of the Milky Way
Amina Helmi, Simon D. M. White
We study numerical simulations of satellite galaxy disruption in a potential resembling that of the Milky Way. Our goal is to assess whether a merger origin for the stellar halo wo…