A. Helmi

University of Groningen — Netherlands

Physics and Astronomy · Physical Sciences

84h-index42.6kcitations431works19.22yr avg
OpenAlex↗Google Scholar↗Lab page↗

Accepting Students?

No reports yet. Know if this professor is taking students?

Research Topics

Stellar, planetary, and galactic studies(306), Astronomy and Astrophysical Research(266), Galaxies: Formation, Evolution, Phenomena(130), Astrophysics and Star Formation Studies(87), Gamma-ray bursts and supernovae(72)

Publications393 total

The metal-poor tail of the APOGEE survey
Astronomy and Astrophysics·2025Open Access
Chronology of our Galaxy from <i>Gaia</i> colour–magnitude diagram fitting (ChronoGal)
Astronomy and Astrophysics·2025· 2 citedOpen Access
A Walk on the Retrograde Side (WRS) project. II. Chemistry to disentangle in situ and accreted components in Thamnos
arXiv (Cornell University)·2025Open Access
Chronology of our Galaxy from <i>Gaia</i> colour-magnitude diagram fitting (ChronoGal)
Astronomy and Astrophysics·2025· 2 citedOpen Access
A Pristine-UNIONS view on the Galaxy: Kinematics of the distant spur feature of the Sagittarius stream traced by blue horizontal branch stars
Astronomy and Astrophysics·2025· 4 citedOpen Access
The chaos induced by the Galactic bar on the orbits of nearby halo stars
Astronomy and Astrophysics·2025· 2 citedOpen Access
The effect of environment on the mass assembly history of the Milky Way and M31
Astronomy and Astrophysics·2025· 2 citedOpen Access
Group accretion in Milky Way-like stellar haloes
Astronomy and Astrophysics·2025· 1 citedOpen Access
Chemical characterisation of small substructures in the local stellar halo
Astronomy and Astrophysics·2025· 2 citedOpen Access
Precise Asteroseismic Ages for the Helmi Streams
arXiv (Cornell University)·2025Open Access
Unevolved Li-rich stars at low metallicity: A possible formation pathway through novae
Astronomy and Astrophysics·2025· 1 citedOpen Access
Characterisation of local halo building blocks: Thamnos and Sequoia
Astronomy and Astrophysics·2025· 5 citedOpen Access
The effect of environment on the mass assembly history of the Milky Way and M31
arXiv (Cornell University)·2025Open Access
Assessing the robustness of the Galactic rotation curve inferred from the Jeans equations using <i>Gaia</i> DR3 and cosmological simulations
Astronomy and Astrophysics·2024· 10 citedOpen Access
Constrained cosmological simulations of the Local Group using Bayesian hierarchical field-level inference
Astronomy and Astrophysics·2024· 11 citedOpen Access
First measurement of the triaxiality of the inner dark matter halo of the Milky Way
Astronomy and Astrophysics·2024· 6 citedOpen Access
Characterisation of local halo building blocks: Thamnos and Sequoia
arXiv (Cornell University)·2024· 1 citedOpen Access
Filling in the blanks. A method to infer the substructure membership and dynamics of 5D stars
Astronomy and Astrophysics·2024Open Access
Testing MOND using the dynamics of nearby stellar streams
Astronomy and Astrophysics·2024Open Access
The 33 <i>M</i><sub>⊙</sub> black hole <i>Gaia</i> BH3 is part of the disrupted ED-2 star cluster
Astronomy and Astrophysics·2024· 20 citedOpen Access
page 1 of 20Next →

Frequent Co-authors

Julio F. Navarro(18), G. M. Seabroke(14), E. K. Grebel(13), K. C. Freeman(12), B. K. Gibson(12), G. Gilmore(12), Joss Bland‐Hawthorn(12), M. J. Irwin(11), Matthias Steinmetz(11), T. Zwitter(11), Q. A. Parker(11), O. Bienaymé(11), G. Battaglia(11), V. Hill(11), A. Siebert(10), U. Munari(10), Eline Tolstoy(10), P. Jablonka(10), M. Williams(9), James Binney(9)