Amina Helmi

2003- Astronomy University of Groningen, Groningen, Netherlands 
galaxy evolution and dynamics
"Amina Helmi"
Cross-listing: Physics Tree


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P. Tim de Zeeuw grad student 2000 Leiden
 (The formation of the Galactic Halo)
Simon David Manton White grad student 2000 Leiden


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Laura Virginia Sales post-doc (Physics Tree)
Robyn Ellyn Sanderson post-doc 2011-2014 RUG
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Reino S, Rossi EM, Sanderson RE, et al. (2021) Galactic potential constraints from clustering in action space of combined stellar stream data Monthly Notices of the Royal Astronomical Society. 502: 4170-4193
Koppelman HH, Helmi A. (2021) Time evolution of gaps in stellar streams in axisymmetric Stäckel potentials Astronomy & Astrophysics. 649: A55
Koppelman HH, Hagen JHJ, Helmi A. (2021) Frequencies, chaos, and resonances: A study of orbital parameters of nearby thick-disc and halo stars Astronomy & Astrophysics. 647: A37
Recio-Blanco A, Fernández-Alvar E, de Laverny P, et al. (2021) Heavy-elements heritage of the falling sky Astronomy & Astrophysics. 648: A108
Koppelman HH, Helmi A. (2021) Determination of the escape velocity of the Milky Way using a halo sample selected based on proper motion Astronomy & Astrophysics. 649: A136
Koppelman HH, Helmi A. (2021) The reduced proper motion selected halo: Methods and description of the catalogue Astronomy & Astrophysics. 645: A69
Matsuno T, Koppelman HH, Helmi A. (2020) Bright Stars from the Ancient Merger Gaia-Enceladus Visible with Binoculars Research Notes of the Aas. 4: 246
Steinmetz M, Matijevic G, Enke H, et al. (2020) The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- I: Survey Description, Spectra and Radial Velocities The Astronomical Journal. 160: 82
Steinmetz M, Guiglion G, McMillan PJ, et al. (2020) The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- II: Stellar Atmospheric Parameters, Chemical Abundances and Distances The Astronomical Journal. 160: 83
Helmi A. (2020) Streams, Substructures, and the Early History of the Milky Way Annual Review of Astronomy and Astrophysics. 58
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