M. J. Penn

30 papers and 400 indexed citations
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About

M. J. Penn is a scholar working on Astronomy and Astrophysics, Electrical and Electronic Engineering and Molecular Biology. According to data from OpenAlex, M. J. Penn has authored 30 papers receiving a total of 400 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Astronomy and Astrophysics, 5 papers in Electrical and Electronic Engineering and 4 papers in Molecular Biology. Recurrent topics in M. J. Penn’s work include Solar and Space Plasma Dynamics (23 papers), Ionosphere and magnetosphere dynamics (9 papers) and Stellar, planetary, and galactic studies (7 papers). M. J. Penn is often cited by papers focused on Solar and Space Plasma Dynamics (23 papers), Ionosphere and magnetosphere dynamics (9 papers) and Stellar, planetary, and galactic studies (7 papers). M. J. Penn collaborates with scholars based in United States, Brazil and United Kingdom. M. J. Penn's co-authors include J. R. Kuhn, W. Livingston, H. Lin, K. Sankarasubramanian, Alexei Pevtsov, H. P. Jones, A. J. Dombard, L. Fletcher, C. G. Giménez de Castro and Paulo J. A. Simões and has published in prestigious journals such as The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society and Space Science Reviews.

In The Last Decade

Co-authorship network of co-authors of M. J. Penn

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

M. J. Penn

30 papers receiving 382 citations

Fields of papers citing papers by M. J. Penn

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by M. J. Penn. 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 M. J. Penn. The network helps show where M. J. Penn may publish in the future.

Countries citing papers authored by M. J. Penn

Since Specialization
Citations

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

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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2026