Johan De Keyser

7.9k total citations
156 papers, 2.7k citations indexed

About

Johan De Keyser is a scholar working on Astronomy and Astrophysics, Molecular Biology and Ecology. According to data from OpenAlex, Johan De Keyser has authored 156 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 130 papers in Astronomy and Astrophysics, 35 papers in Molecular Biology and 17 papers in Ecology. Recurrent topics in Johan De Keyser's work include Ionosphere and magnetosphere dynamics (80 papers), Solar and Space Plasma Dynamics (73 papers) and Astro and Planetary Science (64 papers). Johan De Keyser is often cited by papers focused on Ionosphere and magnetosphere dynamics (80 papers), Solar and Space Plasma Dynamics (73 papers) and Astro and Planetary Science (64 papers). Johan De Keyser collaborates with scholars based in Belgium, France and United States. Johan De Keyser's co-authors include M. Roth, F. Darrouzet, M. Rubı́n, S. A. Fuselier, H. Balsiger, T. I. Gombosi, P. M. E. Décréau, Marius Echim, Romain Maggiolo and J. J. Berthelier and has published in prestigious journals such as Physical Review Letters, Nature Communications and Journal of Geophysical Research Atmospheres.

In The Last Decade

Johan De Keyser

145 papers receiving 2.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Johan De Keyser Belgium 28 2.4k 545 380 356 280 156 2.7k
G. R. Lewis United Kingdom 28 2.4k 1.0× 799 1.5× 170 0.4× 290 0.8× 714 2.5× 49 2.7k
A. Reiners Germany 41 5.7k 2.4× 396 0.7× 339 0.9× 364 1.0× 354 1.3× 211 6.0k
E. C. Sittler United States 36 4.5k 1.9× 1.6k 3.0× 116 0.3× 405 1.1× 564 2.0× 103 4.7k
T. Forveille France 49 7.9k 3.3× 137 0.3× 522 1.4× 407 1.1× 380 1.4× 194 8.1k
A. Lecacheux France 32 3.2k 1.3× 1.0k 1.8× 86 0.2× 327 0.9× 111 0.4× 186 3.4k
X. Delfosse France 45 6.3k 2.6× 108 0.2× 240 0.6× 254 0.7× 326 1.2× 148 6.5k
A. Collier Cameron United Kingdom 51 9.8k 4.1× 265 0.5× 279 0.7× 346 1.0× 284 1.0× 286 10.0k
Timothy M. Brown United States 32 4.6k 1.9× 145 0.3× 159 0.4× 223 0.6× 276 1.0× 87 4.8k
Joseph Harrington United States 28 2.5k 1.0× 115 0.2× 227 0.6× 462 1.3× 127 0.5× 74 2.7k
Jeff A. Valenti United States 43 7.0k 2.9× 95 0.2× 534 1.4× 368 1.0× 278 1.0× 132 7.2k

Countries citing papers authored by Johan De Keyser

Since Specialization
Citations

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

Fields of papers citing papers by Johan De Keyser

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Johan De Keyser. 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 Johan De Keyser. The network helps show where Johan De Keyser may publish in the future.

Co-authorship network of co-authors of Johan De Keyser

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

All Works

20 of 20 papers shown
1.
Maggiolo, Romain, et al.. (2026). Interstellar Comet 3I/ATLAS: Evidence for Galactic Cosmic-Ray Processing. The Astrophysical Journal Letters. 996(2). L34–L34.
2.
Rubı́n, M., K. Altwegg, J. J. Berthelier, et al.. (2023). Volatiles in the H2O and CO2 ices of comet 67P/Churyumov–Gerasimenko. Monthly Notices of the Royal Astronomical Society. 526(3). 4209–4233. 13 indexed citations
3.
Edberg, N. J. T., A. I. Eriksson, E. Vigren, et al.. (2023). Scale size of cometary bow shocks. Astronomy and Astrophysics. 682. A51–A51. 3 indexed citations
4.
Dhooghe, Frederik, Johan De Keyser, Nora Hänni, et al.. (2021). Chlorine-bearing species and the 37Cl/35Cl isotope ratio in the coma of comet 67P/Churyumov–Gerasimenko. Monthly Notices of the Royal Astronomical Society. 508(1). 1020–1032. 4 indexed citations
5.
Maggiolo, Romain, Gaël Cessateur, W. B. Moore, et al.. (2021). The effects of cosmic rays on cometary nuclei. American Astronomical Society Meeting Abstracts. 53(1).
6.
Rubı́n, M., K. Altwegg, J. J. Berthelier, et al.. (2021). Refractory elements in the gas phase for comet 67P/Churyumov-Gerasimenko. Astronomy and Astrophysics. 658. A87–A87. 2 indexed citations
7.
Altwegg, K., H. Balsiger, Nora Hänni, et al.. (2020). Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae. Nature Astronomy. 4(5). 533–540. 95 indexed citations
8.
Schroeder, Isaac, K. Altwegg, H. Balsiger, et al.. (2019). A comparison between the two lobes of comet 67P/Churyumov-Gerasimenko based on D/H ratios in H2O measured with the Rosetta/ROSINA DFMS. Lirias (KU Leuven). 11 indexed citations
9.
Dandouras, I., R. Bamford, G. Branduardi‐Raymont, et al.. (2019). Space Plasma Physics Science Opportunities for the Deep Space Gateway. EGUGA. 9690. 1 indexed citations
10.
Voitenko, Y., et al.. (2018). Non-resonant Alfvénic instability activated by high temperature of ion beams in compensated-current astrophysical plasmas. Springer Link (Chiba Institute of Technology). 4 indexed citations
11.
Wurz, P., K. Altwegg, H. Balsiger, et al.. (2017). Chemical Composition of the Semi-Volatile Grains of Comet 67P/Churyumov-Gerasimenko. EGUGA. 2017. 5587. 1 indexed citations
12.
Dandouras, I., M. Yamauchi, H. Rème, et al.. (2017). European SpaceCraft for the study of Atmospheric Particle Escape (ESCAPE): a mission proposed in response to the ESA M5-call. EGUGA. 5456. 1 indexed citations
13.
Wurz, P., M. Rubı́n, K. Altwegg, et al.. (2015). Solar Wind sputtering from the surface of Comet Churyumov-Gerasimenko. EGUGA. 10088. 3 indexed citations
14.
Bieler, A., K. Altwegg, H. Balsiger, et al.. (2015). The role of numerical models in data analysis for the Rosetta mission. EPSC. 1 indexed citations
15.
Pieroux, D., et al.. (2015). Development of the Scientific Instruments for the PICASSO Mission. EGU General Assembly Conference Abstracts. 12260. 1 indexed citations
16.
Roy, L. Le, K. Altwegg, Ursina Calmonte, et al.. (2014). First results at comet 67P/Churyumov-Gerasimenko from the high resolution mass spectrometer ROSINA DFMS on-board the Rosetta spacecraft. European Planetary Science Congress. 9. 1 indexed citations
17.
Darrouzet, F., Natalia Ganushkina, S. Benck, et al.. (2013). Links between the plasmapause and the radiation belts boundaries as observed by the instruments CIS, RAPID and WHISPER onboard Cluster. EGU General Assembly Conference Abstracts. 40. 4128. 2 indexed citations
18.
Darrouzet, F., et al.. (2012). Links between the plasmapause and the radiation belt boundaries from Cluster measurements. EGUGA. 8956. 1 indexed citations
19.
Hässig, M., K. Altwegg, H. Balsiger, et al.. (2011). Investigation of spacecraft outgassing by sensitive mass spectrometry. Bern Open Repository and Information System (University of Bern). 2 indexed citations
20.
Jäckel, A., K. Altwegg, H. Balsiger, et al.. (2011). Neutral molecular beam measurements with the Rosetta ROSINA-RTOF instrument. 2011. 975.

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by G. R. Lewis Breakdown of academic impact, for papers by A. Reiners Breakdown of academic impact, for papers by E. C. Sittler Breakdown of academic impact, for papers by T. Forveille Breakdown of academic impact, for papers by A. Lecacheux Breakdown of academic impact, for papers by X. Delfosse Breakdown of academic impact, for papers by A. Collier Cameron Breakdown of academic impact, for papers by Timothy M. Brown Breakdown of academic impact, for papers by Joseph Harrington Breakdown of academic impact, for papers by Jeff A. Valenti
Rankless by CCL
2026