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.
Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area. V - Luminosity functions of Virgo Cluster galaxies
1985522 citationsB. Binggeli, Allan Sandage et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
hero ref
This map shows the geographic impact of G. Tammann'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 G. Tammann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G. Tammann more than expected).
This network shows the impact of papers produced by G. Tammann. 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 G. Tammann. The network helps show where G. Tammann may publish in the future.
Co-authorship network of co-authors of G. Tammann
This figure shows the co-authorship network connecting the top 25 collaborators of G. Tammann.
A scholar is included among the top collaborators of G. Tammann 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 G. Tammann. G. Tammann is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Tammann, G., Allan Sandage, & B. Reindl. (2008). The expansion field: the value of H 0. The Astronomy and Astrophysics Review. 15(4). 289–331.25 indexed citations
Tammann, G. & Allan Sandage. (1999). The Luminosity Function of Globular Clusters as an Extragalactic Distance Indicator. CERN Bulletin. 167. 204–216.2 indexed citations
Tammann, G.. (1994). Dwarf Galaxies in the Past. European Southern Observatory Conference and Workshop Proceedings. 49. 3.1 indexed citations
11.
Binggeli, B., C. C. Popescu, & G. Tammann. (1993). The kinematics of the Virgo cluster revisited.. Astronomy & Astrophysics Supplement Series. 98(2). 275–296.4 indexed citations
12.
Tammann, G., B. Binggeli, M. Capaccioli, et al.. (1991). The distance of the Centaurus group - a test for various distance indicators.. Msngr. 63. 8–10.1 indexed citations
13.
Leibundgut, B., et al.. (1991). Supernova studies. VII : An atlas of light curves of supernovae type I. Astronomy & Astrophysics Supplement Series. 89(3). 537–579.1 indexed citations
14.
Leibundgut, B. & G. Tammann. (1990). Supernova studies. III: The calibration of the absolute magnitude of supernovae of type Ia. 230(1). 81–86.2 indexed citations
15.
Tammann, G. & Allan Sandage. (1983). The Value of Ho. Highlights of Astronomy. 6. 301–313.5 indexed citations
16.
Sandage, Allan & G. Tammann. (1981). A revised Shapley-Ames catalog of bright galaxies : containing data on magnitudes, types, and redshifts for galaxies in the original Harvard survey, updated to summer 1980, also contains a selection of photographs illustrating the luminosity classification and a list of additional galaxies that satisfy the magnitude limit of the original catalog.4 indexed citations
17.
Sandage, Allan & G. Tammann. (1980). A Revised Shapley-Ames Catalog of Bright Galaxies. 99. 0.280 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.