Z. Kopal

1.2k total citations
91 papers, 811 citations indexed

About

Z. Kopal is a scholar working on Astronomy and Astrophysics, Oceanography and Statistical and Nonlinear Physics. According to data from OpenAlex, Z. Kopal has authored 91 papers receiving a total of 811 indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Astronomy and Astrophysics, 24 papers in Oceanography and 12 papers in Statistical and Nonlinear Physics. Recurrent topics in Z. Kopal's work include Stellar, planetary, and galactic studies (26 papers), Astro and Planetary Science (24 papers) and Geophysics and Gravity Measurements (23 papers). Z. Kopal is often cited by papers focused on Stellar, planetary, and galactic studies (26 papers), Astro and Planetary Science (24 papers) and Geophysics and Gravity Measurements (23 papers). Z. Kopal collaborates with scholars based in United Kingdom, United States and Greece. Z. Kopal's co-authors include Osman Demırcan, E. Budding, P. G. Niarchos, V. V. Markellos, P. M. Anselone, M. A. Sharaf, C. L. Goudas, Hamid M. K. Al-Naimiy, Rudolf Kurth and M. Davidson and has published in prestigious journals such as Nature, Monthly Notices of the Royal Astronomical Society and The Astronomical Journal.

In The Last Decade

Z. Kopal

78 papers receiving 745 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Z. Kopal United Kingdom	16	572	158	97	92	88	91	811
J. Kovalevsky France	12	415 0.7×	143 0.9×	99 1.0×	17 0.2×	49 0.6×	103	597
A. M. Fridman Russia	14	558 1.0×	42 0.3×	75 0.8×	43 0.5×	112 1.3×	84	710
L. G. Taff United States	12	332 0.6×	45 0.3×	54 0.6×	15 0.2×	42 0.5×	66	484
V. A. Brumberg Russia	12	658 1.2×	289 1.8×	9 0.1×	25 0.3×	117 1.3×	67	832
Peter Szekeres Australia	19	1.3k 2.2×	101 0.6×	11 0.1×	95 1.0×	263 3.0×	34	1.4k
P. O. Vandervoort United States	12	419 0.7×	13 0.1×	50 0.5×	19 0.2×	101 1.1×	50	530
G. H. Kaplan United States	12	447 0.8×	173 1.1×	102 1.1×	9 0.1×	26 0.3×	56	632
E. J. Wampler United States	19	958 1.7×	50 0.3×	197 2.0×	4 0.0×	56 0.6×	77	1.1k
M. J. Disney United Kingdom	17	897 1.6×	42 0.3×	343 3.5×	14 0.2×	39 0.4×	63	959
E. Høg Denmark	12	1.2k 2.1×	95 0.6×	508 5.2×	11 0.1×	62 0.7×	84	1.4k

Countries citing papers authored by Z. Kopal

Since Specialization

Citations

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

Fields of papers citing papers by Z. Kopal

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Z. Kopal

This figure shows the co-authorship network connecting the top 25 collaborators of Z. Kopal. A scholar is included among the top collaborators of Z. Kopal 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 Z. Kopal. Z. Kopal 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

1.

Kopal, Z.. (1982). Theory of the light curves of eclipsing systems with oscillating components, II. Astrophysics and Space Science. 88(2). 313–329. 1 indexed citations

2.

Kopal, Z.. (1981). Vibrational stability of rotating stars. Astrophysics and Space Science. 76(1). 187–212. 8 indexed citations

3.

Kopal, Z.. (1980). An analysis of the radial velocity curves of close binary systems, I. Astrophysics and Space Science. 70(2). 329–362. 9 indexed citations

4.

Kopal, Z. & M. A. Sharaf. (1980). Linear analysis of the light curves of eclipsing variables. Astrophysics and Space Science. 70(1). 77–101. 5 indexed citations

5.

Budding, E. & Z. Kopal. (1980). Photovisual light curve and photometric elements of the eclipsing nucleus of the planetary nebula Abell 63. Astrophysics and Space Science. 73(1). 83–100. 3 indexed citations

6.

Kopal, Z. & Osman Demırcan. (1978). Fourier analysis of the light curves of eclipsing variables, XIV. Astrophysics and Space Science. 55(1). 241–261. 26 indexed citations

7.

Kopal, Z.. (1977). Dynamical arguments which concern melting of the Moon. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 285(1327). 561–568. 4 indexed citations

8.

Kopal, Z.. (1977). Fourier analysis of the light curves of eclipsing variables, XI. Astrophysics and Space Science. 50(1). 225–246. 26 indexed citations

9.

Kopal, Z., et al.. (1973). Asymptotic solutions for the Clairaut equation in the theory of rotating fluid masses. Astrophysics and Space Science. 23(2). 425–429. 1 indexed citations

10.

Kopal, Z.. (1972). Moments of inertia of the lunar globe, and their bearing on chemical differentiation of its outer layers. Earth Moon and Planets. 4(1-2). 28–34. 6 indexed citations

11.

Kopal, Z.. (1970). The axial rotation of asteroids. Astrophysics and Space Science. 6(1). 33–35. 8 indexed citations

12.

Kopal, Z.. (1968). Dynamical tides in close binary systems. Astrophysics and Space Science. 2(1). 48–60. 6 indexed citations

13.

Kopal, Z., et al.. (1968). Volume integrals of the products of spherical harmonics and their application to viscous dissipation phenomena in fluids. Astrophysics and Space Science. 2(3). 352–369. 7 indexed citations

14.

Kopal, Z.. (1967). The shape of the Moon, its internal structure and moments of inertia. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 296(1446). 254–265. 6 indexed citations

15.

Kopal, Z.. (1963). The Effects of Convection in the Mantle on the Gravitational Field of the Earth. NASA Technical Reports Server (NASA). 11. 29–38. 3 indexed citations

16.

Kopal, Z.. (1959). Essentials for Mapping the Moon. American Scientist. 47. 505–508. 1 indexed citations

17.

Kopal, Z.. (1959). 7. Evolutionary Processes in Close Binary Systems. 9. 74–75.

18.

Kopal, Z. & Rudolf Kurth. (1957). The Relation between Period and Times of the Maxima or Minima of Variable Stars. 42. 90. 2 indexed citations

19.

Kopal, Z.. (1956). Evolutionary processes in close binary stars. 19. 298. 10 indexed citations

20.

Kopal, Z.. (1954). The nature of the eclipses of epsilon Aurigae. Observatory. 74. 14–20. 12 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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