K. Jahnkę

25.1k total citations · 1 hit paper
204 papers, 4.7k citations indexed

About

K. Jahnkę is a scholar working on Astronomy and Astrophysics, Instrumentation and Surgery. According to data from OpenAlex, K. Jahnkę has authored 204 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 82 papers in Astronomy and Astrophysics, 45 papers in Instrumentation and 27 papers in Surgery. Recurrent topics in K. Jahnkę's work include Galaxies: Formation, Evolution, Phenomena (76 papers), Astronomy and Astrophysical Research (45 papers) and Astrophysical Phenomena and Observations (29 papers). K. Jahnkę is often cited by papers focused on Galaxies: Formation, Evolution, Phenomena (76 papers), Astronomy and Astrophysical Research (45 papers) and Astrophysical Phenomena and Observations (29 papers). K. Jahnkę collaborates with scholars based in Germany, United States and Spain. K. Jahnkę's co-authors include L. Wisotzki, S. F. Sánchez, Andreas Unger, Eric F. Bell, M. Barden, Hans‐Walter Rix, Walter Birchmeier, Jürgen Behrens, Christian Wolf and Daniel H. McIntosh and has published in prestigious journals such as Nature, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

K. Jahnkę

188 papers receiving 4.5k citations

Hit Papers

Tip of the Iceberg: Overmassive Black Holes at 4 < z &... 2025 2026 2025 5 10 15 20

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. Jahnkę Germany 36 3.3k 1.6k 531 435 280 204 4.7k
Andreas Koch Germany 42 3.4k 1.0× 1.6k 1.0× 666 1.3× 628 1.4× 130 0.5× 211 6.3k
John J. Feldmeier United States 34 2.2k 0.7× 1.1k 0.7× 79 0.1× 222 0.5× 230 0.8× 88 3.3k
Naoto Kobayashi Japan 34 1.7k 0.5× 327 0.2× 713 1.3× 120 0.3× 215 0.8× 378 4.9k
Richard J. Patterson United States 39 1.9k 0.6× 978 0.6× 272 0.5× 95 0.2× 298 1.1× 118 3.7k
Bryan W. Miller United States 32 2.6k 0.8× 1.3k 0.8× 752 1.4× 126 0.3× 96 0.3× 83 4.0k
Jianfeng Wu China 25 653 0.2× 87 0.1× 1.3k 2.4× 246 0.6× 349 1.2× 119 4.3k
Masao Hayashi Japan 33 1.3k 0.4× 670 0.4× 887 1.7× 183 0.4× 140 0.5× 157 3.9k
M. G. Smith United Kingdom 28 1.2k 0.4× 341 0.2× 182 0.3× 383 0.9× 287 1.0× 153 2.8k
James Kirk United States 25 657 0.2× 251 0.2× 108 0.2× 43 0.1× 120 0.4× 137 1.8k
Makiko Yoshida Japan 18 1.1k 0.3× 464 0.3× 114 0.2× 290 0.7× 202 0.7× 78 1.8k

Countries citing papers authored by K. Jahnkę

Since Specialization
Citations

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

Fields of papers citing papers by K. Jahnkę

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of K. Jahnkę. A scholar is included among the top collaborators of K. Jahnkę 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. Jahnkę. K. Jahnkę 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.
Li, Junyao, J. D. Silverman, Yue Shen, et al.. (2025). Tip of the Iceberg: Overmassive Black Holes at 4 < z < 7 Found by JWST Are Not Inconsistent with the Local M BH - M Relation. The Astrophysical Journal. 981(1). 19–19. 24 indexed citations breakdown →
2.
Gokus, Andrea, K. Jahnkę, Paul Woods, et al.. (2024). Astronomy’s climate emissions: Global travel to scientific meetings in 2019. PNAS Nexus. 3(5). pgae143–pgae143. 1 indexed citations
3.
Andika, I.T, K. Jahnkę, Arjen van der Wel, et al.. (2023). When Spectral Modeling Meets Convolutional Networks: A Method for Discovering Reionization-era Lensed Quasars in Multiband Imaging Data. The Astrophysical Journal. 943(2). 150–150. 4 indexed citations
4.
Burtscher, L., D. Barret, Tobias Beuchert, et al.. (2021). Forging a sustainable future for astronomy. Nature Astronomy. 5(9). 857–860. 10 indexed citations
5.
Jahnkę, K., O. Krause, Hans‐Walter Rix, et al.. (2021). The need for a multi-purpose, optical–NIR space facility after HST and JWST. Experimental Astronomy. 51(3). 765–782. 1 indexed citations
6.
Jahnkę, K., Christian Fendt, M. Fouesneau, et al.. (2020). An astronomical institute’s perspective on meeting the challenges of the climate crisis. Nature Astronomy. 4(9). 812–815. 23 indexed citations
7.
Andika, I.T, K. Jahnkę, Masafusa Onoue, et al.. (2020). Probing the Nature of High-redshift Weak Emission Line Quasars: A Young Quasar with a Starburst Host Galaxy. The Astrophysical Journal. 903(1). 34–34. 25 indexed citations
8.
Ding, Xuheng, J. D. Silverman, Tommaso Treu, et al.. (2020). The Mass Relations between Supermassive Black Holes and Their Host Galaxies at 1 &lt; z &lt; 2 with HST-WFC3. eScholarship (California Digital Library). 91 indexed citations
9.
Burtscher, L., D. Barret, V. Grinberg, et al.. (2020). The carbon footprint of large astronomy meetings. Nature Astronomy. 4(9). 823–825. 63 indexed citations
10.
Husemann, B., L. Wisotzki, S. F. Sánchez, & K. Jahnkę. (2012). The properties of the extended warm ionised gas around low-redshift QSOs and the lack of extended high-velocity outflows. Springer Link (Chiba Institute of Technology). 54 indexed citations
11.
Elbaz, D., K. Jahnkę, É. Pantin, D. Le Borgne, & G. Letawe. (2009). Quasar induced galaxy formation: a new paradigm?. Springer Link (Chiba Institute of Technology). 18 indexed citations
12.
Schramm, Malte, L. Wisotzki, & K. Jahnkę. (2007). Host galaxies of bright high redshift quasars: luminosities\n and colours. Springer Link (Chiba Institute of Technology). 20 indexed citations
13.
Robin, A. C., P. Capak, L. Tasca, et al.. (2007). The Stellar Content of the COSMOS Field as Derived from Morphological and SED‐based Star/Galaxy Separation. The Astrophysical Journal Supplement Series. 172(1). 545–559. 9 indexed citations
14.
Christensen, L., K. Jahnkę, L. Wisotzki, et al.. (2006). A jet-cloud interaction in the 3C 196 environment. Springer Link (Chiba Institute of Technology). 4 indexed citations
15.
Christensen, L., K. Jahnkę, L. Wisotzki, & S. F. Sánchez. (2006). Extended Lyman-α emission around bright quasars ⋆. 45 indexed citations
16.
Neumann, Andreas & K. Jahnkę. (2005). Trommelfellrekonstruktion mit Knorpel : Indikationen, Techniken und Ergebnisse. HNO. 53(6). 573–586. 1 indexed citations
17.
Courbin, F., G. Letawe, Pierre Magain, et al.. (2002). Spectroscopy of quasar host galaxies at the VLT: stellar populations and dynamics down to the central kiloparsec. Open Repository and Bibliography (University of Liège).
18.
Jahnkę, K., et al.. (1979). [Hypacusis in acquired hypothyroidism (author's transl)].. PubMed. 27(1). 1–6. 1 indexed citations
19.
Jahnkę, K., et al.. (1964). Ultrazentrifugen-Untersuchungen zum Sedimentations-Verhalten isolierter γ-Globuline Gesunder und Krebskranker. Zeitschrift für Naturforschung B. 19(1). 60–63. 1 indexed citations
20.
Jahnkę, K. & W Scholtan. (1960). Die Bluteiweisskörper in der Ultrazentrifuge : Sedimentation-Flotation. 1 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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