Publications (102)
The RAVE-on catalog of stellar atmospheric parameters and chemical abundances for chemo-dynamic studies in the Gaia era
Andrew R. Casey, Keith Hawkins, David W. Hogg +24
An analytic distribution function for a massless cored stellar system in a cuspy dark matter halo
Maarten A. Breddels, Amina Helmi
Is the dark halo of our Galaxy spherical?
Amina Helmi
Schwarzschild models of the Sculptor dSph galaxy
Maarten A. Breddels, Amina Helmi, R. C. E. van den Bosch +2
Group infall of substructures on to a Milky Way-like dark halo
Yang-Shyang Li, Amina Helmi
Streams in the Aquarius stellar haloes
Facundo A. Gómez, Amina Helmi, Andrew P. Cooper +3
An analytical phase-space model for tidal caustics
Robyn E. Sanderson, Amina Helmi
Building up the Stellar Halo of the Milky Way
Amina Helmi, Simon D. M. White
Simple dynamical models of the Sagittarius dwarf galaxy
Amina Helmi, Simon D. M. White
The shape of dark matter subhalos in the Aquarius simulations
Carlos Vera-Ciro, Laura V. Sales, Amina Helmi +1
The Shape of Dark Matter Haloes in the Aquarius Simulations: Evolution and Memory
Carlos A. Vera-Ciro, Laura V. Sales, Amina Helmi +5
The stellar halo of the Galaxy
Amina Helmi
The Galaxy and its stellar halo: insights on their formation from a hybrid cosmological approach
Gabriella De Lucia, Amina Helmi
On the identification of merger debris in the {\it Gaia} Era
Facundo A. Gómez, Amina Helmi, Anthony G. A. Brown +1
Mapping the substructure in the Galactic halo with the next generation of astrometric satellites
Amina Helmi, P. Tim de Zeeuw
Flavours in the box of chocolates: chemical abundances of kinematic substructures in the nearby stellar halo
Jovan Veljanoski, Amina Helmi
The Origin of Extended Disk Galaxies at z=2
Laura V. Sales, Julio F. Navarro, Joop Schaye +4
The Diversity and Similarity of Simulated Cold Dark Matter Halos
Julio F. Navarro, Aaron Ludlow, Volker Springel +6
More pieces of the puzzle: Chemistry and substructures in the Galactic thick disk
Amina Helmi, Mary Williams, K. C. Freeman +2
Constraints on the shape of the Milky Way dark matter halo from the Sagittarius stream
Carlos Vera-Ciro, Amina Helmi
Scratching the surface with TGAS and RAVE: disk moving groups in the Solar neighborhood
Helmer H. Koppelman, Titania Virginiflosia, Lorenzo Posti +2
Building Blocks of the Milky Way's Accreted Spheroid
Pim van Oirschot, Else Starkenburg, Amina Helmi +1
Complexity on dwarf galaxies scale: A bimodal distribution function in Sculptor
Maarten A. Breddels, Amina Helmi
The power of teaming up HST and Gaia: the first proper motion measurement of the distant cluster NGC 2419
Davide Massari, Lorenzo Posti, Amina Helmi +2
New distances to RAVE stars
James Binney, Ben Burnett, Georges Kordopatis +16
Internal kinematics and dynamical models of dwarf spheroidal galaxies around the Milky Way
Giuseppina Battaglia, Amina Helmi, Maarten Breddels
The time evolution of gaps in tidal streams
Amina Helmi, Helmer H. Koppelman
Debris streams in the solar neighbourhood as relicts from the formation of the Milky Way
Amina Helmi, Simon D. M. White, P. Tim de Zeeuw +1
Pieces of the puzzle: Ancient substructure in the Galactic disk
Amina Helmi, J. F. Navarro, B. Nordstrom +3
One large blob and many streams frosting the nearby stellar halo in Gaia DR2
Helmer H. Koppelman, Amina Helmi, Jovan Veljanoski
The phase-space structure of a dark-matter halo: Implications for dark-matter direct detection experiments
Amina Helmi, Simon D. M. White, Volker Springel
Constraining the Milky Way potential using the dynamical kinematic substructures
Giacomo Monari, Teresa Antoja, Amina Helmi
Dark satellites and the morphology of dwarf galaxies
Amina Helmi, L. V. Sales, E. Starkenburg +4
The Arcturus Moving Group: Its Place in the Galaxy
Mary E. K. Williams, Ken C. Freeman, Amina Helmi +1
The phase-space structure of cold dark-matter halos: Insights into the Galactic halo
Amina Helmi, Simon D. M. White, Volker Springel
A new fitting-function to describe the time evolution of a galaxy's gravitational potential
Hans J. T. Buist, Amina Helmi
A new view of the dwarf spheroidal satellites of the Milky Way from VLT/FLAMES: Where are the very metal poor stars?
Amina Helmi, M. J. Irwin, E. Tolstoy +13
Action-space clustering of tidal streams to infer the Galactic potential
Robyn E. Sanderson, Amina Helmi, David W. Hogg
Averaging Einstein's Equations: The Linearized Case
William R. Stoeger, Amina Helmi, Diego F. Torres
The NIR Ca II triplet at low metallicity - Searching for extremely low-metallicity stars in classical dwarf galaxies
Else Starkenburg, Vanessa Hill, Eline Tolstoy +9
The Unorthodox Orbits of Substructure Halos
Aaron D. Ludlow, Julio F. Navarro, Volker Springel +3
The Radial Velocity Experiment (RAVE): Fifth Data Release
Andrea Kunder, Georges Kordopatis, Matthias Steinmetz +51
The selection function of the RAVE survey
Jennifer Wojno, Georges Kordopatis, Tilmann Piffl +23
The vertical force in the Solar Neighbourhood using red clump stars in TGASxRAVE - Constraints on the local dark matter density
Jorrit H. J. Hagen, Amina Helmi
A box full of chocolates: The rich structure of the nearby stellar halo revealed by Gaia and RAVE
Amina Helmi, Jovan Veljanoski, Maarten A. Breddels +2
The kinematics of globular clusters systems in the outer halos of the Aquarius simulations
Jovan Veljanoski, Amina Helmi
The Dawning of the Stream of Aquarius in RAVE
Mary E. K. Williams, Matthias Steinmetz, Sanjib Sharma +22
Substructure in the stellar halos of the Aquarius simulations
Amina Helmi, A. P. Cooper, S. D. M. White +3
Binary white dwarfs in the halo of the Milky Way
Pim van Oirschot, Gijs Nelemans, Silvia Toonen +4
The Aquarius Project: the subhalos of galactic halos
Volker Springel, Jie Wang, Mark Vogelsberger +6
Thick-disk evolution induced by the growth of an embedded thin disk
Ãlvaro Villalobos, Stelios Kazantzidis, Amina Helmi
Infall of substructures onto a Milky Way-like dark halo
Yang-Shyang Li, Amina Helmi
Observational Properties of the Metal-Poor Thick Disk of the Milky Way Galaxy and Insights into Its Origins
Gregory R. Ruchti, Jon P. Fulbright, Rosemary F. G. Wyse +17
3D test particle simulations of the Galactic disks. The kinematical effects of the bar
Giacomo Monari, Teresa Antoja, Amina Helmi
The fine-grained phase-space structure of Cold Dark Matter halos
Mark Vogelsberger, Simon D. M. White, Amina Helmi +1
Galactic kinematics and dynamics from RAVE stars
James Binney, Ben Burnett, Georges Kordopatis +15
The Effect of Tidal Stripping on Composite Stellar Populations in Dwarf Spheroidal Galaxies
Laura V. Sales, Amina Helmi, Giuseppina Battaglia
Phase-space structure in the local dark matter distribution and its signature in direct detection experiments
Mark Vogelsberger, Amina Helmi, Volker Springel +6
On the identification of substructure in phase-space using orbital frequencies
Facundo A. Gomez, Amina Helmi
The Galaxy and its stellar halo - insights from a hybrid cosmological approach
Gabriella De Lucia, Amina Helmi
Detecting Halo Streams with GAIA
Amina Helmi, HongSheng Zhao, P. Tim de Zeeuw
Galactic Dynamics and Local Dark Matter
Steven R. Majewski, James Bullock, Andreas Burkert +13
Dark influences: imprints of dark satellites on dwarf galaxies
Tjitske K. Starkenburg, Amina Helmi
Halo streams as relicts from the formation of the Milky Way
Amina Helmi
Building up the Stellar Halo of the Galaxy
Amina Helmi, Simon D. M. White
The satellites of the Milky Way - Insights from semi-analytic modelling in a LambdaCDM cosmology
Else Starkenburg, Amina Helmi, Gabriella De Lucia +7
On the common mass scale of the Milky Way satellites
Yang-Shyang Li, Amina Helmi, Gabriella De Lucia +1
Improved distances and ages for stars common to TGAS and RAVE
Paul J. McMillan, Georges Kordopatis, Andrea Kunder +15
Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
Gabriella De Lucia, Luca Tornatore, Carlos S. Frenk +3
Non-Integrability and Chaos in Classical Cosmology
Amina Helmi, Hector Vucetich
Nucleosynthesis and the Inhomogeneous Chemical Evolution of the Carina Dwarf Galaxy
Kim Venn, Matthew Shetrone, Mike Irwin +12
Orbital Eccentricity as a probe of Thick Disk Formation Scenarios
Laura V. Sales, Amina Helmi, Mario G. Abadi +7
On the nature of the Milky Way satellites
Yang-Shyang Li, Gabriella De Lucia, Amina Helmi
On the feasibility of constraining the triaxiality of the Galactic dark halo with orbital resonances using nearby stars
Casper Hesp, Amina Helmi
Pseudo Three-dimensional Maps of the Diffuse Interstellar Band at 862 nm
Janez Kos, Tomaž Zwitter, Rosemary Wyse +20
Simulations of minor mergers. I. General properties of thick disks
Ãlvaro Villalobos, Amina Helmi
The population of Milky Way satellites in the LambdaCDM cosmology
Andreea S. Font, Andrew J. Benson, Richard G. Bower +11
The Galactic bar and the large scale velocity gradients in the Galactic disk
Giacomo Monari, Amina Helmi, Teresa Antoja +1
Testing formation mechanisms of the Milky Way's thick disc with RAVE
Michelle Wilson, Amina Helmi, H. L. Morrison +21
Simulations of minor mergers. II. The phase-space structure of thick discs
Ãlvaro Villalobos, Amina Helmi
The evolution of streams in a time-dependent potential
Hans J. T. Buist, Amina Helmi
Clues to the "Magellanic Galaxy" from Cosmological Simulations
Laura V. Sales, Julio F. Navarro, Andrew P. Cooper +3
Velocity trends in the debris of Sagittarius and the shape of the dark-matter halo of the Galaxy
Amina Helmi
Design drivers for a wide-field multi-object spectrograph for the William Herschel Telescope
Marc Balcells, Chris R. Benn, David Carter +21
Miller's instability, microchaos and the short-term evolution of initially nearby orbits
Amina Helmi, Facundo Gomez
Matching the dark matter profiles of dSph galaxies with those of simulated satellites: a two parameter comparison
Maarten A. Breddels, Carlos Vera-Ciro, Amina Helmi
Properties of Dark Matter Revealed by Astrometric Measurements of the Milky Way and Local Galaxies
Edward Shaya, Robert Olling, Massimo Ricotti +19
Dark influences II: gas and star formation in minor mergers of dwarf galaxies with dark satellites
Tjitske K. Starkenburg, Amina Helmi, Laura V. Sales
On the behaviour of streams in angle and frequency spaces in different potentials
Hans J. T. Buist, Amina Helmi
Dark influences III. Structural characterization of minor mergers of dwarf galaxies with dark satellites
Tjitske K. Starkenburg, Amina Helmi, Laura V. Sales
4MOST - 4-metre Multi-Object Spectroscopic Telescope
Roelof S. de Jong, Olga Bellido-Tirado, Cristina Chiappini +82
Mapping the Galactic Halo VIII: Quantifying substructure
Else Starkenburg, Amina Helmi, Heather L. Morrison +11
The dynamically selected stellar halo of the Galaxy with Gaia and the tilt of the velocity ellipsoid
Lorenzo Posti, Amina Helmi, Jovan Veljanoski +1
The Extragalactic Origin of the Arcturus Group
Julio F. Navarro, Amina Helmi, Kenneth C. Freeman +1
Stream-subhalo interactions in the Aquarius simulations
Robyn E. Sanderson, Carlos Vera-Ciro, Amina Helmi +1
What can Gaia proper motions tell us about Milky Way dwarf galaxies?
Shoko Jin, Amina Helmi, Maarten Breddels
On the phase-space structure of the Milky Way dark-matter halo
Amina Helmi, Volker Springel, Simon D. M. White
Modeling the gravitational potential of a cosmological dark matter halo with stellar streams
Robyn E. Sanderson, Johanna Hartke, Amina Helmi
A blueprint for detecting supersymmetric dark matter in the Galactic halo
Volker Springel, Simon D. M. White, Carlos S. Frenk +6
Not too big, not too small: the dark halos of the dwarf spheroidals in the Milky Way
Carlos A. Vera-Ciro, Amina Helmi, Else Starkenburg +1