Alex Simpson

590 total citations · 1 hit paper
13 papers, 382 citations indexed

About

Alex Simpson is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Statistical and Nonlinear Physics. According to data from OpenAlex, Alex Simpson has authored 13 papers receiving a total of 382 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Astronomy and Astrophysics, 13 papers in Nuclear and High Energy Physics and 2 papers in Statistical and Nonlinear Physics. Recurrent topics in Alex Simpson's work include Black Holes and Theoretical Physics (12 papers), Cosmology and Gravitation Theories (7 papers) and Pulsars and Gravitational Waves Research (6 papers). Alex Simpson is often cited by papers focused on Black Holes and Theoretical Physics (12 papers), Cosmology and Gravitation Theories (7 papers) and Pulsars and Gravitational Waves Research (6 papers). Alex Simpson collaborates with scholars based in New Zealand, Portugal and Thailand. Alex Simpson's co-authors include Matt Visser, Francisco S. N. Lobo, Marcos V. de S. Silva, Manuel E. Rodrigues, Thomas Berry and Petarpa Boonserm and has published in prestigious journals such as Physical review. D, General Relativity and Gravitation and Universe.

In The Last Decade

Alex Simpson

13 papers receiving 372 citations

Hit Papers

Novel black-bounce spacetimes: Wormholes, regularity, ene... 2021 2026 2022 2024 2021 40 80 120
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.

  1. Novel black-bounce spacetimes: Wormholes, regularity, energy conditions, and causal structure
    2021 132 citations Francisco S. N. Lobo, Manuel E. Rodrigues et al. Physical review. D profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Alex Simpson New Zealand 11 358 288 46 45 15 13 382
Laura Sberna Germany 12 397 1.1× 224 0.8× 29 0.6× 44 1.0× 13 0.9× 17 435
R. N. Izmailov Russia 12 368 1.0× 238 0.8× 29 0.6× 58 1.3× 19 1.3× 40 381
Zhaoyi Xu China 13 600 1.7× 473 1.6× 25 0.5× 65 1.4× 17 1.1× 34 624
Miguel Megevand Mexico 12 403 1.1× 273 0.9× 50 1.1× 75 1.7× 9 0.6× 17 443
A. R. Soares Brazil 10 288 0.8× 254 0.9× 114 2.5× 92 2.0× 5 0.3× 18 370
Sebastian H. Völkel Germany 13 339 0.9× 191 0.7× 31 0.7× 36 0.8× 22 1.5× 26 372
Arkady A. Popov Russia 10 290 0.8× 244 0.8× 54 1.2× 51 1.1× 32 2.1× 28 329
Takao Kitamura Japan 6 450 1.3× 263 0.9× 67 1.5× 51 1.1× 11 0.7× 7 461
Soichiro Isoyama Japan 8 342 1.0× 185 0.6× 20 0.4× 21 0.5× 16 1.1× 11 364
Elisa Maggio Italy 9 387 1.1× 235 0.8× 38 0.8× 23 0.5× 18 1.2× 13 406

Countries citing papers authored by Alex Simpson

Since Specialization
Citations

This map shows the geographic impact of Alex Simpson'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 Alex Simpson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alex Simpson more than expected).

Fields of papers citing papers by Alex Simpson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alex Simpson. 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 Alex Simpson. The network helps show where Alex Simpson may publish in the future.

Co-authorship network of co-authors of Alex Simpson

This figure shows the co-authorship network connecting the top 25 collaborators of Alex Simpson. A scholar is included among the top collaborators of Alex Simpson 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 Alex Simpson. Alex Simpson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

13 of 13 papers shown
1.
Berry, Thomas, et al.. (2022). Constant-r geodesics in the Painlevé–Gullstrand form of Lense–Thirring spacetime. General Relativity and Gravitation. 54(8). 10 indexed citations
2.
Berry, Thomas, Alex Simpson, & Matt Visser. (2022). General-relativistic thin-shell Dyson megaspheres. Physical review. D. 106(8). 4 indexed citations
3.
Simpson, Alex & Matt Visser. (2022). Astrophysically viable Kerr-like spacetime. Physical review. D. 105(6). 24 indexed citations
4.
Berry, Thomas, et al.. (2022). Geodesics for the Painlevé–Gullstrand Form of Lense–Thirring Spacetime. Universe. 8(2). 115–115. 11 indexed citations
5.
Berry, Thomas, Alex Simpson, & Matt Visser. (2021). Regularity of a General Class of “Quantum Deformed” Black Holes. Universe. 7(6). 165–165. 12 indexed citations
6.
Berry, Thomas, et al.. (2021). Killing Tensor and Carter Constant for Painlevé–Gullstrand Form of Lense–Thirring Spacetime. Universe. 7(12). 473–473. 20 indexed citations
7.
Lobo, Francisco S. N., Manuel E. Rodrigues, Marcos V. de S. Silva, Alex Simpson, & Matt Visser. (2021). Novel black-bounce spacetimes: Wormholes, regularity, energy conditions, and causal structure. Physical review. D. 103(8). 132 indexed citations breakdown →
8.
Lobo, Francisco S. N., Manuel E. Rodrigues, Marcos V. de S. Silva, Alex Simpson, & Matt Visser. (2020). Novel black-bounce geometries. arXiv (Cornell University). 4 indexed citations
9.
Lobo, Francisco S. N., Alex Simpson, & Matt Visser. (2020). Dynamic thin-shell black-bounce traversable wormholes. Physical review. D. 101(12). 59 indexed citations
10.
Boonserm, Petarpa, et al.. (2020). Decomposition of the total stress energy for the generalized Kiselev black hole. Physical review. D. 101(2). 16 indexed citations
11.
Boonserm, Petarpa, et al.. (2020). Innermost and outermost stable circular orbits in the presence of a positive cosmological constant. Physical review. D. 101(2). 22 indexed citations
12.
Berry, Thomas, Francisco S. N. Lobo, Alex Simpson, & Matt Visser. (2020). Thin-shell traversable wormhole crafted from a regular black hole with asymptotically Minkowski core. Physical review. D. 102(6). 29 indexed citations
13.
Boonserm, Petarpa, et al.. (2018). Exponential metric represents a traversable wormhole. Physical review. D. 98(8). 39 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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