J. Köppen

1.8k total citations
34 papers, 1.1k citations indexed

About

J. Köppen is a scholar working on Astronomy and Astrophysics, Instrumentation and Computational Mechanics. According to data from OpenAlex, J. Köppen has authored 34 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Astronomy and Astrophysics, 14 papers in Instrumentation and 2 papers in Computational Mechanics. Recurrent topics in J. Köppen's work include Stellar, planetary, and galactic studies (25 papers), Astrophysics and Star Formation Studies (16 papers) and Astronomy and Astrophysical Research (14 papers). J. Köppen is often cited by papers focused on Stellar, planetary, and galactic studies (25 papers), Astrophysics and Star Formation Studies (16 papers) and Astronomy and Astrophysical Research (14 papers). J. Köppen collaborates with scholars based in Germany, France and United Kingdom. J. Köppen's co-authors include M. G. Edmunds, R. B. C. Henry, C. Weidner, Pavel Kroupa, B. Miszalski, G. Hensler, A. Acker, D. J. Frew, Jan Palouš and Pavel Jáchym and has published in prestigious journals such as Science, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

J. Köppen

33 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Köppen Germany	18	1.0k	383	59	25	23	34	1.1k
M. Bazot France	16	855 0.8×	278 0.7×	59 1.0×	19 0.8×	26 1.1×	29	881
Peter M. Frinchaboy United States	20	1.2k 1.2×	596 1.6×	76 1.3×	31 1.2×	16 0.7×	32	1.2k
E. Vassiliadis Australia	11	1.4k 1.3×	576 1.5×	77 1.3×	39 1.6×	11 0.5×	19	1.4k
Rebekah I. Dawson United States	15	1.1k 1.0×	270 0.7×	36 0.6×	33 1.3×	25 1.1×	31	1.1k
L. Mashonkina Russia	12	624 0.6×	263 0.7×	106 1.8×	18 0.7×	18 0.8×	23	650
A. Palacios France	22	1.7k 1.6×	534 1.4×	112 1.9×	28 1.1×	14 0.6×	51	1.7k
David S. Aguado Spain	20	960 0.9×	534 1.4×	62 1.1×	41 1.6×	15 0.7×	52	992
M. Burnet Switzerland	15	1.3k 1.3×	505 1.3×	45 0.8×	34 1.4×	19 0.8×	30	1.4k
G. Houdek United Kingdom	17	749 0.7×	263 0.7×	25 0.4×	27 1.1×	26 1.1×	65	770
Y. C. Liang China	14	766 0.7×	423 1.1×	65 1.1×	16 0.6×	11 0.5×	36	798

Countries citing papers authored by J. Köppen

Since Specialization

Citations

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

Fields of papers citing papers by J. Köppen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Köppen

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

All Works

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20 of 20 papers shown

Köppen, J., Pavel Jáchym, R. Taylor, & Jan Palouš. (2018). Ram pressure stripping made easy: an analytical approach. Monthly Notices of the Royal Astronomical Society. 479(4). 4367–4390. 21 indexed citations

Miszalski, B., H. M. J. Boffin, David Jones, et al.. (2013). SALT reveals the barium central star of the planetary nebula Hen 2-39★. Monthly Notices of the Royal Astronomical Society. 436(4). 3068–3081. 24 indexed citations

Ziégler, M., T. Rauch, K. Werner, J. Köppen, & J. W. Kruk. (2012). BD–22°3467, a DAO-type star exciting the nebula Abell 35. Astronomy and Astrophysics. 548. A109–A109. 25 indexed citations

Miszalski, B., J. Mikołajewska, J. Köppen, et al.. (2011). The influence of binarity on dust obscuration events in the planetary nebula M 2-29 and its analogues. Astronomy and Astrophysics. 528. A39–A39. 18 indexed citations

Jáchym, Pavel, J. Köppen, Jan Palouš, & F. Combes. (2009). Ram pressure stripping of tilted galaxies. Astronomy and Astrophysics. 500(2). 693–703. 40 indexed citations

Jáchym, Pavel, Jan Palouš, J. Köppen, & F. Combes. (2007). Gas stripping in galaxy clusters: a new SPH simulation approach. Astronomy and Astrophysics. 472(1). 5–20. 46 indexed citations

Köppen, J., C. Weidner, & Pavel Kroupa. (2007). A possible origin of the mass-metallicity relation of galaxies. Monthly Notices of the Royal Astronomical Society. 375(2). 673–684. 91 indexed citations

Girard, P., J. Köppen, & A. Acker. (2006). Chemical compositions and plasma parameters of planetary nebulae with Wolf-Rayet and wels type central stars. Astronomy and Astrophysics. 463(1). 265–274. 33 indexed citations

Hensler, G., et al.. (2005). The Early Chemical Evolution of Dwarf Irregular Galaxies. Highlights of Astronomy. 13. 554–559.

10.

Köppen, J. & G. Hensler. (2005). Effects of episodic gas infall on the chemical abundances in galaxies. Astronomy and Astrophysics. 434(2). 531–541. 59 indexed citations

11.

Frew, D. J., et al.. (2004). PFP 1: A Large Planetary Nebula Caught in the First Stages of ISM Interaction. Publications of the Astronomical Society of Australia. 21(3). 334–343. 30 indexed citations

12.

Vergely, Jean‐Luc, J. Köppen, D. Egret, & O. Bienaymé. (2002). An inverse method to interpret colour-magnitude diagrams. Astronomy and Astrophysics. 390(3). 917–929. 30 indexed citations

13.

Nürnberger, D., S. Durand, J. Köppen, et al.. (2001). PN G291.4-00.3: A new type I planetary nebula. Astronomy and Astrophysics. 377(1). 241–250. 2 indexed citations

14.

Schreiber, Ulrich, D. Anders, & J. Köppen. (1999). Mixing and chemical interdiffusion of trachytic and latitic magma in a subvolcanic complex of the Tertiary Westerwald (Germany). Lithos. 46(4). 695–714. 23 indexed citations

15.

Kerber, F., J. Köppen, Martin M. Roth, & S. C. Trager. (1999). The hidden past of Sakurai's object Stellar properties before the final helium flash. 344(3). 1 indexed citations

16.

Köppen, J. & Jean‐Luc Vergely. (1998). The opacity of the Galactic disc derived with planetary nebulae. Monthly Notices of the Royal Astronomical Society. 299(2). 567–574. 8 indexed citations

17.

Köppen, J., et al.. (1994). Abundance gradients from disk planetary nebulae: o, 'NE', s, and 'AR'. 282(2). 436–443. 9 indexed citations

18.

Köppen, J. & Ch. Theis. (1993). Selfregulated Star Formation.. 9. 104. 1 indexed citations

19.

Köppen, J., et al.. (1989). On the theoretical ratio of some nebular lines.. Msngr. 58. 44–46. 2 indexed citations

20.

Köppen, J.. (1975). Sunspot and stray light observations during the 1971, February 25 partial solar eclipse. Solar Physics. 42(2). 325–332. 3 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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