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Orbit anisotropy of dark matter haloes with Schwarzschild modelling
Klaudia Kowalczyk, Ewa L. Lokas, Monica Valluri
We apply the Schwarzschild orbit superposition method to mock data in order to investigate the accuracy of recovering the profile of the orbit anisotropy. The mock data come from f…
A unified framework for the orbital structure of bars and triaxial ellipsoids
Monica Valluri, Juntai Shen, Caleb G. Abbott +1
We examine a large random sample of orbits in self-consistent simulations of N-body bars. Orbits in the bars are classified both visually and with a new automated orbit classificat…
The history of stellar metallicity in a simulated disc galaxy
O. N. Snaith, J. Bailin, B. K. Gibson +5
We explore the chemical distribution of stars in a simulated galaxy. Using simulations of the same initial conditions but with two different feedback schemes (MUGS and MaGICC), we…
Imprints of radial migration on the Milky Way's metallicity distribution functions
Sarah R. Loebman, Victor P. Debattista, David L. Nidever +5
Recent analysis of the SDSS-III/APOGEE Data Release 12 stellar catalogue has revealed that the Milky Way's metallicity distribution function (MDF) changes shape as a function of ra…
Stellar orbital properties as diagnostics of the origin of the stellar halo
Monica Valluri, Sarah R. Loebman, Jeremy Bailin +3
We examine metallicities, ages and orbital properties of halo stars in a Milky-Way like disk galaxy formed in the cosmological hydrodynamical MaGICC simulations. Halo stars were ei…
Chaotic Dispersal of Tidal Debris
Adrian M. Price-Whelan, Kathryn V. Johnston, Monica Valluri +3
Several long, dynamically cold stellar streams have been observed around the Milky Way Galaxy, presumably formed from the tidal disruption of globular clusters. In integrable poten…