Geraint F. Lewis

25.9k total citations · 1 hit paper
335 papers, 9.9k citations indexed

About

Geraint F. Lewis is a scholar working on Astronomy and Astrophysics, Instrumentation and Nuclear and High Energy Physics. According to data from OpenAlex, Geraint F. Lewis has authored 335 papers receiving a total of 9.9k indexed citations (citations by other indexed papers that have themselves been cited), including 322 papers in Astronomy and Astrophysics, 102 papers in Instrumentation and 50 papers in Nuclear and High Energy Physics. Recurrent topics in Geraint F. Lewis's work include Galaxies: Formation, Evolution, Phenomena (226 papers), Stellar, planetary, and galactic studies (201 papers) and Astronomy and Astrophysical Research (102 papers). Geraint F. Lewis is often cited by papers focused on Galaxies: Formation, Evolution, Phenomena (226 papers), Stellar, planetary, and galactic studies (201 papers) and Astronomy and Astrophysical Research (102 papers). Geraint F. Lewis collaborates with scholars based in Australia, United Kingdom and France. Geraint F. Lewis's co-authors include Rodrigo Ibata, M. J. Irwin, N. R. Tanvir, A. M. N. Ferguson, Alan W. McConnachie, S. C. Chapman, Nicolas F. Martin, Joss Bland‐Hawthorn, Dougal Mackey and A. M. Ferguson and has published in prestigious journals such as Nature, Science and Physical Review Letters.

In The Last Decade

Geraint F. Lewis

320 papers receiving 9.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy

2013 320 citations Rodrigo Ibata, Geraint F. Lewis et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Geraint F. Lewis Australia	51	9.6k	4.2k	1.2k	371	227	335	9.9k
Rodrigo Ibata France	56	11.1k 1.2×	5.3k 1.3×	999 0.8×	227 0.6×	239 1.1×	265	11.4k
Roeland P. van der Marel United States	53	9.2k 1.0×	4.2k 1.0×	855 0.7×	572 1.5×	206 0.9×	187	9.4k
E. K. Grebel Germany	55	10.2k 1.1×	4.7k 1.1×	848 0.7×	210 0.6×	187 0.8×	291	10.3k
Barry F. Madore United States	50	9.6k 1.0×	3.2k 0.8×	1.4k 1.1×	396 1.1×	213 0.9×	234	10.0k
Ortwin Gerhard Germany	54	9.6k 1.0×	4.4k 1.1×	896 0.7×	433 1.2×	359 1.6×	207	9.8k
B. K. Gibson Australia	49	8.6k 0.9×	2.9k 0.7×	1.3k 1.1×	201 0.5×	205 0.9×	237	8.9k
Matthias Steinmetz Germany	49	7.4k 0.8×	3.4k 0.8×	1.1k 0.9×	204 0.5×	412 1.8×	162	7.6k
M. D. Lehnert France	48	7.8k 0.8×	2.8k 0.7×	1.4k 1.1×	257 0.7×	131 0.6×	213	8.0k
Andreas Burkert Germany	57	10.0k 1.0×	2.7k 0.7×	1.8k 1.5×	388 1.0×	387 1.7×	270	10.4k
Shude Mao China	42	6.6k 0.7×	3.0k 0.7×	949 0.8×	590 1.6×	273 1.2×	226	6.8k

Countries citing papers authored by Geraint F. Lewis

Since Specialization

Citations

This map shows the geographic impact of Geraint F. Lewis's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Geraint F. Lewis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Geraint F. Lewis more than expected).

Fields of papers citing papers by Geraint F. Lewis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Geraint F. Lewis. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Geraint F. Lewis. The network helps show where Geraint F. Lewis may publish in the future.

Co-authorship network of co-authors of Geraint F. Lewis

This figure shows the co-authorship network connecting the top 25 collaborators of Geraint F. Lewis. A scholar is included among the top collaborators of Geraint F. Lewis based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Geraint F. Lewis. Geraint F. Lewis is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Zucker, D. B., Gayandhi M De Silva, Sven Buder, et al.. (2025). The GALAH Survey: Stellar parameters and abundances for 800 000 Gaia RVS spectra using GALAH DR4 and The Cannon. Monthly Notices of the Royal Astronomical Society. 538(2). 605–621. 2 indexed citations

Sahu, Nandini, Anowar J. Shajib, Kim‐Vy Tran, et al.. (2025). Cosmography with the Double-source-plane Strong Gravitational Lens AGEL150745+052256. The Astrophysical Journal. 991(1). 72–72. 1 indexed citations

McGill, G. E., A. M. N. Ferguson, Dougal Mackey, et al.. (2025). Accreted globular clusters and horizontal branch morphology in the outer halo of M31. Monthly Notices of the Royal Astronomical Society Letters. 542(1). L60–L66.

Lewis, Geraint F., Denis Erkal, Ting S. Li, et al.. (2025). Flipping of the Tidal Tails of the Ophiuchus Stream due to the Decelerating Galactic Bar. The Astrophysical Journal. 984(2). 189–189. 3 indexed citations

Brewer, Brendon J., et al.. (2025). Revisiting the cosmological time dilation of distant quasars: influence of source properties and evolution. Monthly Notices of the Royal Astronomical Society. 537(2). 809–816. 1 indexed citations

Brewer, Brendon J., et al.. (2024). Rotation of the Globular Cluster Population of the Dark Matter Deficient Galaxy NGC 1052-DF4: Implication for the total mass. Publications of the Astronomical Society of Australia. 1–10. 1 indexed citations

Vogrinčič, Rok, Janez Kos, T. Zwitter, et al.. (2023). The GALAH survey: new diffuse interstellar bands found in residuals of 872 000 stellar spectra. Monthly Notices of the Royal Astronomical Society. 521(3). 3727–3748. 8 indexed citations

Hossen, M. R., et al.. (2022). Ringing the universe with cosmic emptiness: void properties through a combined analysis of stacked weak gravitational and Doppler lensing. arXiv (Cornell University).

Wan, Zhen, William H. Oliver, Geraint F. Lewis, et al.. (2022). Dynamics in the outskirts of four Milky Way globular clusters: it’s the tides that dominate. Monthly Notices of the Royal Astronomical Society. 519(1). 192–207. 9 indexed citations

10.

Petersen, Michael, Denis Erkal, Jorge Peñarrubia, et al.. (2022). The effect of the deforming dark matter haloes of the Milky Way and the Large Magellanic Cloud on the Orphan–Chenab stream. Monthly Notices of the Royal Astronomical Society. 518(1). 774–790. 43 indexed citations

11.

Martin, Nicolas F., Guillaume F. Thomas, A. M. N. Ferguson, et al.. (2022). The PAndAS View of the Andromeda Satellite System. III. Dwarf Galaxy Detection Limits. The Astrophysical Journal. 933(2). 135–135. 10 indexed citations

12.

Vitali, Sara, Anke Arentsen, Else Starkenburg, et al.. (2022). The Pristine Inner Galaxy Survey (PIGS) – IV. A photometric metallicity analysis of the Sagittarius dwarf spheroidal galaxy. Monthly Notices of the Royal Astronomical Society. 517(4). 6121–6139. 10 indexed citations

13.

Simion, Iulia T., Juntai Shen, S. E. Koposov, et al.. (2021). Mapping the tilt of the Milky Way bulge velocity ellipsoids with ARGOS and Gaia DR2. Monthly Notices of the Royal Astronomical Society. 502(2). 1740–1752. 11 indexed citations

14.

Ji, Alexander P., S. E. Koposov, Ting S. Li, et al.. (2021). Kinematics of Antlia 2 and Crater 2 from the Southern Stellar Stream Spectroscopic Survey (S ⁵). The Astrophysical Journal. 921(1). 32–32. 55 indexed citations

15.

Wan, Zhen, William H. Oliver, Holger Baumgardt, et al.. (2021). The dynamics of the globular cluster NGC 3201 out to the Jacobi radius. Monthly Notices of the Royal Astronomical Society. 502(3). 4513–4525. 20 indexed citations

16.

List, Florian, Pascal J. Elahi, & Geraint F. Lewis. (2020). Lux Ex Tenebris: The Imprint of Annihilating Dark Matter on the Intergalactic Medium during Cosmic Dawn. The Astrophysical Journal. 904(2). 153–153. 6 indexed citations

17.

Shipp, Nora, Ting S. Li, Andrew B. Pace, et al.. (2019). Proper Motions of Stellar Streams Discovered in the Dark Energy Survey. The Astrophysical Journal. 885(1). 3–3. 46 indexed citations

18.

Martin, Nicolas F., Daniel R. Weisz, Edouard J. Bernard, et al.. (2017). A Rogues’ Gallery of Andromeda's Dwarf Galaxies. I. A Predominance of Red Horizontal Branches. The Astrophysical Journal. 850(1). 16–16. 18 indexed citations

19.

Landecker, T. L., R. Kothes, B. M. Gaensler, et al.. (2017). Polarization Gradient Study of Interstellar Medium Turbulence Using the Canadian Galactic Plane Survey. The Astrophysical Journal. 835(2). 210–210. 2 indexed citations

20.

Bolejko, Krzysztof, et al.. (2014). Probing spatial homogeneity with LTB models: a detailed discussion. Springer Link (Chiba Institute of Technology). 28 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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