M. A. Coplan

591 total citations
16 papers, 272 citations indexed

About

M. A. Coplan is a scholar working on Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics and Atmospheric Science. According to data from OpenAlex, M. A. Coplan has authored 16 papers receiving a total of 272 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Astronomy and Astrophysics, 4 papers in Atomic and Molecular Physics, and Optics and 4 papers in Atmospheric Science. Recurrent topics in M. A. Coplan's work include Solar and Space Plasma Dynamics (7 papers), Astro and Planetary Science (7 papers) and Ionosphere and magnetosphere dynamics (4 papers). M. A. Coplan is often cited by papers focused on Solar and Space Plasma Dynamics (7 papers), Astro and Planetary Science (7 papers) and Ionosphere and magnetosphere dynamics (4 papers). M. A. Coplan collaborates with scholars based in United States, Switzerland and Moldova. M. A. Coplan's co-authors include K. W. Ogilvie, P. Bochsler, J. Geiss, R. D. Zwickl, J. E. Mentall, Millard H. Alexander, D. A. Roberts, F. M. Ipavich, E. R. Christian and P. R. Mahaffy and has published in prestigious journals such as The Journal of Chemical Physics, Journal of Geophysical Research Atmospheres and Reviews of Geophysics.

In The Last Decade

M. A. Coplan

16 papers receiving 220 citations

Peers

M. A. Coplan

AA

AMPO

SPECT

AS

MB

W. Schulte Switzerland

J. Woweries Switzerland

U. Dolder Switzerland

Jr. Chaffee Frederic H. United States

L. Testerman United States

H. D. Edwards United States

James E. Lyke United States

Felix Allum United States

V. J. Žigman Slovenia

C. Rosolen France

W. Schulte Switzerland

M. A. Coplan

245 ×1.2

AA

38 ×0.6

AMPO

32 ×0.6

SPECT

53 ×1.3

AS

10 ×0.6

MB

Citations per year, relative to M. A. Coplan M. A. Coplan (= 1×) peers W. Schulte

Countries citing papers authored by M. A. Coplan

Since Specialization

Citations

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

Fields of papers citing papers by M. A. Coplan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by M. A. Coplan. 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 M. A. Coplan. The network helps show where M. A. Coplan may publish in the future.

Co-authorship network of co-authors of M. A. Coplan

This figure shows the co-authorship network connecting the top 25 collaborators of M. A. Coplan. A scholar is included among the top collaborators of M. A. Coplan 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 M. A. Coplan. M. A. Coplan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

1.

Sittler, E. C., J. F. Cooper, R. E. Hartle, et al.. (2013). Plasma ion composition measurements for Europa. Planetary and Space Science. 88. 26–41. 11 indexed citations

2.

Ogilvie, K. W., M. A. Coplan, D. A. Roberts, & F. M. Ipavich. (2007). Solar wind structure suggested by bimodal correlations of solar wind speed and density between the spacecraft SOHO and Wind. Journal of Geophysical Research Atmospheres. 112(A8). 8 indexed citations

3.

Ogilvie, K. W. & M. A. Coplan. (1995). Solar wind composition. Reviews of Geophysics. 33(S1). 615–622. 14 indexed citations

4.

Coplan, M. A., et al.. (1989). Wide range magnetic electron spectrograph. Review of Scientific Instruments. 60(7). 1233–1238. 1 indexed citations

5.

Geiss, J., P. Bochsler, K. W. Ogilvie, & M. A. Coplan. (1986). Origin of metal ions in the coma of P/Giacobini-Zinner. NASA Technical Reports Server (NASA). 166. 4 indexed citations

6.

Coplan, M. A., K. W. Ogilvie, P. Bochsler, & J. Geiss. (1984). Interpretation of3He abundance variations in the solar wind. Solar Physics. 93(2). 415–434. 40 indexed citations

7.

Bochsler, P., et al.. (1983). Determination of solar wind elemental abundances from M/Q observations during three periods in 1980. Solar Physics. 88(1-2). 15 indexed citations

8.

Ogilvie, K. W., M. A. Coplan, & R. D. Zwickl. (1982). Helium, hydrogen, and oxygen velocities observed on ISEE 3. Journal of Geophysical Research Atmospheres. 87(A9). 7363–7369. 56 indexed citations

9.

Ogilvie, K. W., M. A. Coplan, P. Bochsler, & J. Geiss. (1980). Abundance ratios of ⁴He⁺⁺/³He⁺⁺ in the solar wind. Journal of Geophysical Research Atmospheres. 85(A11). 6021–6024. 21 indexed citations

10.

Coplan, M. A., K. W. Ogilvie, P. Bochsler, & J. Geiss. (1978). Ion Composition Experiment. IEEE transactions on geoscience electronics. 16(3). 185–191. 30 indexed citations

11.

Alexander, Millard H., et al.. (1976). Low energy scattering of 6Li+ from H2O. The Journal of Chemical Physics. 65(3). 1063–1070. 11 indexed citations

12.

Coplan, M. A. & K. W. Ogilvie. (1974). Optical studies of the products of charge exchange between He+ and CO. The Journal of Chemical Physics. 61(5). 2010–2014. 10 indexed citations

13.

Coplan, M. A. & J. E. Mentall. (1973). Optical study of charge exchange collisions between He+ and CO2. The Journal of Chemical Physics. 58(11). 4912–4915. 20 indexed citations

14.

Mentall, J. E., et al.. (1973). Excitation of CO2+ by electron impact on CO2. The Journal of Chemical Physics. 59(7). 3867–3868. 7 indexed citations

15.

Coplan, M. A., et al.. (1972). Differential Measurements of Dissociative Charge Exchange, He++CO2. The Journal of Chemical Physics. 56(8). 4223–4226. 4 indexed citations

16.

Coplan, M. A. & K. W. Ogilvie. (1970). Charge Exchange for H+ and H2+ in H2O, CO2, and NH3. The Journal of Chemical Physics. 52(8). 4154–4160. 20 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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