Helmut Jerjen

8.5k total citations
112 papers, 3.8k citations indexed

About

Helmut Jerjen is a scholar working on Astronomy and Astrophysics, Instrumentation and Nuclear and High Energy Physics. According to data from OpenAlex, Helmut Jerjen has authored 112 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 110 papers in Astronomy and Astrophysics, 64 papers in Instrumentation and 9 papers in Nuclear and High Energy Physics. Recurrent topics in Helmut Jerjen's work include Stellar, planetary, and galactic studies (88 papers), Galaxies: Formation, Evolution, Phenomena (80 papers) and Astronomy and Astrophysical Research (64 papers). Helmut Jerjen is often cited by papers focused on Stellar, planetary, and galactic studies (88 papers), Galaxies: Formation, Evolution, Phenomena (80 papers) and Astronomy and Astrophysical Research (64 papers). Helmut Jerjen collaborates with scholars based in Australia, United States and Germany. Helmut Jerjen's co-authors include B. Binggeli, Oliver Müller, Marcel S. Pawlowski, G. S. Da Costa, Pavel Kroupa, Dongwon Kim, A. P. Milone, A. F. Marino, K. C. Freeman and L. R. Bedin and has published in prestigious journals such as Science, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

Helmut Jerjen

110 papers receiving 3.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helmut Jerjen Australia 36 3.7k 2.0k 459 94 67 112 3.8k
M. Pannella Germany 29 2.7k 0.7× 1.5k 0.8× 374 0.8× 77 0.8× 66 1.0× 60 2.7k
M. Sargent United Kingdom 30 2.9k 0.8× 1.3k 0.7× 462 1.0× 64 0.7× 55 0.8× 90 3.0k
A. M. N. Ferguson United Kingdom 36 4.2k 1.2× 2.1k 1.1× 270 0.6× 84 0.9× 48 0.7× 105 4.3k
D. T. Frayer United States 31 3.7k 1.0× 1.6k 0.8× 555 1.2× 75 0.8× 62 0.9× 89 3.8k
Lin Yan United States 32 3.4k 0.9× 1.4k 0.7× 534 1.2× 107 1.1× 42 0.6× 101 3.5k
G. Magdis Denmark 32 2.9k 0.8× 1.4k 0.7× 301 0.7× 65 0.7× 56 0.8× 100 3.0k
N. Arimoto Japan 35 3.5k 0.9× 1.9k 1.0× 324 0.7× 149 1.6× 54 0.8× 119 3.6k
G. Rodighiero Italy 30 2.9k 0.8× 1.4k 0.7× 830 1.8× 97 1.0× 80 1.2× 91 3.0k
P. Barmby United States 30 2.9k 0.8× 1.3k 0.7× 361 0.8× 68 0.7× 36 0.5× 94 2.9k
Karoline M. Gilbert United States 27 3.4k 0.9× 1.5k 0.7× 439 1.0× 111 1.2× 31 0.5× 72 3.5k

Countries citing papers authored by Helmut Jerjen

Since Specialization
Citations

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

Fields of papers citing papers by Helmut Jerjen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helmut Jerjen

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Jerjen. A scholar is included among the top collaborators of Helmut Jerjen 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 Helmut Jerjen. Helmut Jerjen 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.
Jerjen, Helmut, et al.. (2025). The coherent satellite velocity field around the interacting spiral galaxy pair NGC5713/19: signature of two galaxy groups merging. Monthly Notices of the Royal Astronomical Society. 542(1). 62–75.
2.
Müller, Oliver, Federico Lelli, Benoît Famaey, et al.. (2022). The Cen A galaxy group: Dynamical mass and missing baryons. univOAK (4 institutions : Université de Strasbourg, Université de Haute Alsace, INSA Strasbourg, Bibliothèque Nationale et Universitaire de Strasbourg). 15 indexed citations
3.
Müller, Oliver, Marcel S. Pawlowski, Federico Lelli, et al.. (2021). The coherent motion of Cen A dwarf satellite galaxies remains a challenge for ΛCDM cosmology. Springer Link (Chiba Institute of Technology). 7 indexed citations
4.
Chiti, Anirudh, Anna Frebel, Joshua D. Simon, et al.. (2021). An extended halo around an ancient dwarf galaxy. Nature Astronomy. 5(4). 392–400. 56 indexed citations
5.
Müller, Oliver & Helmut Jerjen. (2020). Abundance of dwarf galaxies around low-mass spiral galaxies in the Local Volume. Springer Link (Chiba Institute of Technology). 19 indexed citations
6.
Müller, Oliver, M. Rejkuba, Marcel S. Pawlowski, et al.. (2019). The dwarf galaxy satellite system of Centaurus A. Springer Link (Chiba Institute of Technology). 61 indexed citations
7.
Milone, A. P., A. F. Marino, G. S. Da Costa, et al.. (2019). Multiple populations in globular clusters and their parent galaxies. Monthly Notices of the Royal Astronomical Society. 491(1). 515–531. 73 indexed citations
8.
Müller, Oliver, Helmut Jerjen, & B. Binggeli. (2018). The Leo-I group: new dwarf galaxy and ultra diffuse galaxy candidates. Springer Link (Chiba Institute of Technology). 63 indexed citations
9.
Marino, A. F., David Yong, A. P. Milone, et al.. (2018). Metallicity Variations in the Type II Globular Cluster NGC 6934*. The Astrophysical Journal. 859(2). 81–81. 31 indexed citations
10.
Müller, Oliver, M. Rejkuba, & Helmut Jerjen. (2018). Distances from the tip of the red giant branch to the dwarf galaxies dw1335-29 and dw1340-30 in the Centaurus group. Springer Link (Chiba Institute of Technology). 26 indexed citations
11.
Müller, Oliver, et al.. (2017). The M 101 group complex: new dwarf galaxy candidates and spatial structure. Springer Link (Chiba Institute of Technology). 63 indexed citations
12.
Marino, A. F., A. P. Milone, David Yong, et al.. (2017). Spectroscopy and Photometry of Multiple Populations along the Asymptotic Giant Branch of NGC 2808 and NGC 6121 (M4)*. The Astrophysical Journal. 843(1). 66–66. 34 indexed citations
13.
Myeong, GyuChul, Helmut Jerjen, Dougal Mackey, & G. S. Da Costa. (2017). Tidal Tails around the Outer Halo Globular Clusters Eridanus and Palomar 15. The Astrophysical Journal Letters. 840(2). L25–L25. 36 indexed citations
14.
Müller, Oliver, Helmut Jerjen, Marcel S. Pawlowski, & B. Binggeli. (2016). Testing the two planes of satellites in the Centaurus group. Springer Link (Chiba Institute of Technology). 42 indexed citations
15.
Müller, Oliver, Helmut Jerjen, & B. Binggeli. (2016). New low surface brightness dwarf galaxies in the Centaurus group. Springer Link (Chiba Institute of Technology). 52 indexed citations
16.
Müller, Oliver, Helmut Jerjen, & B. Binggeli. (2015). New dwarf galaxy candidates in the Centaurus group. Springer Link (Chiba Institute of Technology). 45 indexed citations
17.
Lianou, S., E. K. Grebel, G. S. Da Costa, et al.. (2013). Population gradients and photometric metallicities in early- and transition-type dwarf galaxies: Clues from the Sculptor group. Springer Link (Chiba Institute of Technology). 4 indexed citations
18.
Rejkuba, M., G. S. Da Costa, Helmut Jerjen, M. Zoccali, & B. Binggeli. (2006). Dwarf elliptical galaxies in Centaurus A group: stellar populations in\nAM 1339-445 and AM 1343-452. Springer Link (Chiba Institute of Technology). 20 indexed citations
19.
Jerjen, Helmut. (2003). Surface brightness fluctuation distances for dwarf elliptical galaxies in the Fornax cluster. Springer Link (Chiba Institute of Technology). 19 indexed citations
20.
Barazza, F. D., B. Binggeli, & Helmut Jerjen. (2003). VLT surface photometry and isophotal analysis of early-type dwarf\ngalaxies in the Virgo cluster. Springer Link (Chiba Institute of Technology). 19 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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