Countries citing papers authored by H. U. Zimmermann
Since
Specialization
Citations
This map shows the geographic impact of H. U. Zimmermann'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 H. U. Zimmermann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. U. Zimmermann more than expected).
Fields of papers citing papers by H. U. Zimmermann
This network shows the impact of papers produced by H. U. Zimmermann. 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 H. U. Zimmermann. The network helps show where H. U. Zimmermann may publish in the future.
Co-authorship network of co-authors of H. U. Zimmermann
This figure shows the co-authorship network connecting the top 25 collaborators of H. U. Zimmermann.
A scholar is included among the top collaborators of H. U. Zimmermann 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 H. U. Zimmermann. H. U. Zimmermann is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Pietsch, W., et al.. (1998). New active galactic nuclei detected in ROSAT All Sky Survey galaxies. I. Verification of selection strategy. 333(1). 48–62.1 indexed citations
5.
Voges, W., Thomas Böller, H. Bräuninger, et al.. (1996). ROSAT All-Sky Survey Bright Source Catalogue. OpenGrey (Institut de l'Information Scientifique et Technique). 6420. 1.5 indexed citations
6.
Bi, Hongguang, Halton Arp, & H. U. Zimmermann. (1994). X-ray observations of NGC 3077. 282(2). 386–400.2 indexed citations
7.
Zimmermann, H. U., G. Hasinger, W. Pietsch, et al.. (1993). Supernova 1993J in NGC 3031. UvA-DARE (University of Amsterdam). 6014. 1.1 indexed citations
8.
Öğelman, H., J. P. Finley, & H. U. Zimmermann. (1993). Pulsed X-rays from the Vela pulsar. Nature. 361(6408). 136–138.57 indexed citations
9.
Zimmermann, H. U., et al.. (1993). EXSAS user's guide. Extended Scientific Analysis System to evaluate data from the astronomical X-ray satellite ROSAT.. OpenGrey (Institut de l'Information Scientifique et Technique).6 indexed citations
10.
Gesù, Vito Di, L. Scarsi, R. Buccheri, et al.. (1992). Data Analysis in Astronomy IV. CERN Document Server (European Organization for Nuclear Research).21 indexed citations
11.
Oêgelman, H. & H. U. Zimmermann. (1988). Soft X-ray observations of the VELA Pulsar PSR 0833-45. OpenGrey (Institut de l'Information Scientifique et Technique). 214. 179–185.4 indexed citations
12.
Smith, A. & H. U. Zimmermann. (1985). X-ray observations of Vela-X. Advances in Space Research. 5(3). 53–56.1 indexed citations
Burkert, Wolfgang, H. U. Zimmermann, B. Aschenbach, Heinrich W. Braeuninger, & F. Williamson. (1982). Soft X-ray filter spectroscopy of the supernova remnants VELA X and Puppis A. A&A. 115(1). 167–170.3 indexed citations
16.
Aschenbach, B., U. G. Briel, W. Brinkmann, et al.. (1981). The Rosat mission. Space Science Reviews. 30(1-4). 569–573.7 indexed citations
17.
Turner, M. J. L., A. Smith, & H. U. Zimmermann. (1981). The Medium Energy Instrument on Exosat. Space Science Reviews. 30(1-4). 513–524.46 indexed citations
18.
Zimmermann, H. U.. (1980). New upper limits for pulsed soft X-rays from the VELA pulsar PSR 0833-45 .. 88. 309–310.2 indexed citations
Zimmermann, H. U.. (1974). Measurements for the Crab Nebula and the pulsar NP 0532 in the hard x-ray region. 34. 305.
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.