J. A. Vorpahl

423 total citations
18 papers, 312 citations indexed

About

J. A. Vorpahl is a scholar working on Astronomy and Astrophysics, Molecular Biology and Artificial Intelligence. According to data from OpenAlex, J. A. Vorpahl has authored 18 papers receiving a total of 312 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Astronomy and Astrophysics, 4 papers in Molecular Biology and 2 papers in Artificial Intelligence. Recurrent topics in J. A. Vorpahl's work include Solar and Space Plasma Dynamics (17 papers), Ionosphere and magnetosphere dynamics (13 papers) and Geomagnetism and Paleomagnetism Studies (4 papers). J. A. Vorpahl is often cited by papers focused on Solar and Space Plasma Dynamics (17 papers), Ionosphere and magnetosphere dynamics (13 papers) and Geomagnetism and Paleomagnetism Studies (4 papers). J. A. Vorpahl collaborates with scholars based in United States and Australia. J. A. Vorpahl's co-authors include H. Zirin, E. P. Ney, T. Pope, D. L. McKenzie, P. B. Landecker, R. T. Stewart, Gail J. Pruss, J. H. Underwood, E. Tandberg‐Hanssen and T. Takakura and has published in prestigious journals such as Science, The Astrophysical Journal and Solar Physics.

In The Last Decade

J. A. Vorpahl

17 papers receiving 271 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J. A. Vorpahl United States 10 293 63 58 31 25 18 312
N. R. Labrum Australia 8 274 0.9× 34 0.5× 32 0.6× 11 0.4× 15 0.6× 18 300
J. Kleczek Czechia 7 276 0.9× 16 0.3× 82 1.4× 10 0.3× 35 1.4× 33 310
G. W. Hoogeveen United States 9 377 1.3× 27 0.4× 87 1.5× 16 0.5× 26 1.0× 12 403
L. V. Yasnov Russia 12 311 1.1× 54 0.9× 81 1.4× 12 0.4× 17 0.7× 52 326
Keizo Kai Japan 11 365 1.2× 62 1.0× 85 1.5× 3 0.1× 18 0.7× 27 382
Y. Shiomi Japan 7 427 1.5× 43 0.7× 117 2.0× 4 0.1× 48 1.9× 18 442
B. Nikutowski Germany 12 269 0.9× 30 0.5× 102 1.8× 12 0.4× 17 0.7× 30 299
Franz‐Ludwig Deubner Germany 8 274 0.9× 16 0.3× 48 0.8× 6 0.2× 34 1.4× 17 308
Orren C. Mohler United States 9 155 0.5× 19 0.3× 22 0.4× 23 0.7× 12 0.5× 29 219
H. Zirin United States 9 259 0.9× 13 0.2× 31 0.5× 6 0.2× 22 0.9× 20 268

Countries citing papers authored by J. A. Vorpahl

Since Specialization
Citations

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

Fields of papers citing papers by J. A. Vorpahl

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. A. Vorpahl

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

All Works

18 of 18 papers shown
1.
Vorpahl, J. A., et al.. (1978). Physical parameters defining the changing structure of a coronal hole. The Astrophysical Journal. 219. 300–300. 2 indexed citations
2.
Vorpahl, J. A.. (1978). Physical conditions in the corona for a bipolar magnetic region. Solar Physics. 57(2). 297–308. 2 indexed citations
3.
Vorpahl, J. A., et al.. (1977). Coronal plasma parameters in a long-duration X-ray event observed by SKYLAB. The Astrophysical Journal. 212. 550–550. 21 indexed citations
4.
Stewart, R. T. & J. A. Vorpahl. (1977). Radio and soft X-ray evidence for dense non-potential magnetic flux tubes in the solar corona. Solar Physics. 55(1). 111–120. 16 indexed citations
5.
Vorpahl, J. A., et al.. (1976). Evolutionary Trends in the Development of Coronal Holes and Their Relationship to the Sub Photospheric Magnetic Field. Bulletin of the American Astronomical Society. 8. 326. 1 indexed citations
6.
Smith, J. B., et al.. (1976). Compilation of flares and transients observed by the S-056 solar x-ray telescope during the Skylab missions. NASA STI/Recon Technical Report N. 77. 10990. 1 indexed citations
7.
Vorpahl, J. A.. (1976). The triggering and subsequent development of a solar flare. The Astrophysical Journal. 205. 868–868. 38 indexed citations
8.
Vorpahl, J. A.. (1976). Energy storage and deposition in a solar flare. Solar Physics. 47(1). 147–156. 3 indexed citations
9.
Vorpahl, J. A., et al.. (1975). Observations of the structure and evolution of solar flares with a soft X-ray telescope. Solar Physics. 45(1). 199–216. 38 indexed citations
10.
Vorpahl, J. A. & T. Takakura. (1974). Rise Time in 20-32 keV Impulsive X-Radiation. The Astrophysical Journal. 191. 563–563. 3 indexed citations
11.
Vorpahl, J. A.. (1973). Flares associated with EFR's (Emerging Flux Regions). Solar Physics. 28(1). 115–122. 28 indexed citations
12.
Vorpahl, J. A.. (1973). 19?20 May 1969, an example of type III emission during the impulsive phase of flares. Solar Physics. 29(2). 447–460. 6 indexed citations
13.
Vorpahl, J. A.. (1972). X-radiation (E > 10keV), H? and microwave emission during the impulsive phase of solar flares. Solar Physics. 26(2). 397–413. 42 indexed citations
14.
Vorpahl, J. A. & T. Pope. (1972). Solar bright points in 3840 � and H?. Solar Physics. 25(2). 17 indexed citations
15.
Vorpahl, J. A.. (1971). X-ray (E>10 Kev), Hα and Microwave Emission During the Impulsive Phase of Flares.. Bulletin of the American Astronomical Society. 3. 449. 1 indexed citations
16.
Zirin, H., Gail J. Pruss, & J. A. Vorpahl. (1971). Magnetic fields, bremsstrahlung and synchrotron emission in the flare of 24 October 1969. Solar Physics. 19(2). 463–471. 24 indexed citations
17.
Vorpahl, J. A., et al.. (1970). Satellite Observations of Lightning. Science. 169(3948). 860–862. 49 indexed citations
18.
Vorpahl, J. A. & H. Zirin. (1970). Identification of the hard X-ray pulse in the flare of September 11?12, 1968. Solar Physics. 11(2). 285–290. 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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