K. Ninagawa

79 papers and 578 indexed citations
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About

K. Ninagawa is a scholar working on Astronomy and Astrophysics, Geophysics and Materials Chemistry. According to data from OpenAlex, K. Ninagawa has authored 79 papers receiving a total of 578 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Astronomy and Astrophysics, 24 papers in Geophysics and 19 papers in Materials Chemistry. Recurrent topics in K. Ninagawa’s work include Planetary Science and Exploration (35 papers), Astro and Planetary Science (35 papers) and Isotope Analysis in Ecology (13 papers). K. Ninagawa is often cited by papers focused on Planetary Science and Exploration (35 papers), Astro and Planetary Science (35 papers) and Isotope Analysis in Ecology (13 papers). K. Ninagawa collaborates with scholars based in Japan, Germany and Hungary. K. Ninagawa's co-authors include Hirotsugu Nishido, T. Wada, Isao Yamamoto, Y. Yamashita, A. Gucsik, Masahiro Kayama, D. W. G. Sears, Nobuhiko Yamashita, S. Toyoda and S. Matsunami and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Geochimica et Cosmochimica Acta and Quaternary Science Reviews.

In The Last Decade

Co-authorship network of co-authors of K. Ninagawa

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

Fields of papers citing papers by K. Ninagawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by K. Ninagawa

Since Specialization
Citations

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