Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Evidence from the motions of old stars that the Galaxy collapsed.
This map shows the geographic impact of O. J. Eggen'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 O. J. Eggen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites O. J. Eggen more than expected).
This network shows the impact of papers produced by O. J. Eggen. 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 O. J. Eggen. The network helps show where O. J. Eggen may publish in the future.
Co-authorship network of co-authors of O. J. Eggen
This figure shows the co-authorship network connecting the top 25 collaborators of O. J. Eggen.
A scholar is included among the top collaborators of O. J. Eggen 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 O. J. Eggen. O. J. Eggen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Eggen, O. J.. (1966). Moving Groups among Young Stars. Transactions of the International Astronomical Union. 432.
9.
Eggen, O. J.. (1965). The Wolf 630 group. Observatory. 85. 191–195.12 indexed citations
10.
Eggen, O. J.. (1965). The Ursa Major cluster. Observatory. 85. 104–110.1 indexed citations
11.
Eggen, O. J.. (1959). White dwarf members of the 61 Cygni group. Observatory. 79. 135–139.1 indexed citations
12.
Eggen, O. J.. (1959). Further tests of the reality of the Hyades group. Observatory. 79. 143–148.2 indexed citations
13.
Eggen, O. J.. (1959). The gamma Leonis group of high velocity stars. Observatory. 79. 88–95.4 indexed citations
14.
Eggen, O. J.. (1959). An attempt to test the reality of the gamma Leonis group by analysis of the GC proper motions. Observatory. 79. 182–186.3 indexed citations
15.
Woolley, R. Guy & O. J. Eggen. (1958). On the reality of expanding motions in the Lacerta aggregate. Observatory. 78. 149–155.2 indexed citations
16.
Eggen, O. J.. (1958). Possible Cepheid members of the alpha Persei group. Observatory. 78. 76–79.1 indexed citations
17.
Eggen, O. J.. (1958). The zeta Herculis group of high-velocity stars. Observatory. 78. 21–23.3 indexed citations
18.
Eggen, O. J.. (1957). The Taurus group. Observatory. 77. 229–234.4 indexed citations
19.
Eggen, O. J.. (1957). An eighteenth century discussion of Algol. Observatory. 77. 191–197.1 indexed citations
20.
Eggen, O. J.. (1956). Variable Star Notes. Publications of the Astronomical Society of the Pacific. 68. 142–142.3 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.