Harold I. Ewen

499 total citations
9 papers, 207 citations indexed

About

Harold I. Ewen is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Harold I. Ewen has authored 9 papers receiving a total of 207 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Astronomy and Astrophysics, 4 papers in Nuclear and High Energy Physics and 2 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Harold I. Ewen's work include Astrophysics and Cosmic Phenomena (4 papers), Solar and Space Plasma Dynamics (2 papers) and Astrophysics and Star Formation Studies (2 papers). Harold I. Ewen is often cited by papers focused on Astrophysics and Cosmic Phenomena (4 papers), Solar and Space Plasma Dynamics (2 papers) and Astrophysics and Star Formation Studies (2 papers). Harold I. Ewen collaborates with scholars based in United States. Harold I. Ewen's co-authors include Edward M. Purcell, F. D. Drake, Nannielou H. Dieter, Bart J. Bok and Robert J. Mailloux and has published in prestigious journals such as Nature, The Astrophysical Journal and The Astronomical Journal.

In The Last Decade

Harold I. Ewen

6 papers receiving 186 citations

Peers

Harold I. Ewen
J. G. Bolton Australia
R. M. Sloanaker United States
K. Rohlfs Germany
D. J. Hegyi United States
G. Tofani Italy
C. Rosolen France
B. Baud Netherlands
H. Álvarez Chile
J. Schmid‐Burgk Germany
В. И. Костенко Russia
J. G. Bolton Australia
Harold I. Ewen
Citations per year, relative to Harold I. Ewen Harold I. Ewen (= 1×) peers J. G. Bolton

Countries citing papers authored by Harold I. Ewen

Since Specialization
Citations

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

Fields of papers citing papers by Harold I. Ewen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Harold I. Ewen. 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 Harold I. Ewen. The network helps show where Harold I. Ewen may publish in the future.

Co-authorship network of co-authors of Harold I. Ewen

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

All Works

9 of 9 papers shown
1.
Ewen, Harold I. & Edward M. Purcell. (1982). 1951, Radiation from Galactic Hydrogen at 1420 Mc/s. 10. 328.
2.
Ewen, Harold I., et al.. (1968). Radio Measurement of the Atmospheric Ozone Transition at 101.7 GHz. The Astrophysical Journal. 151. L153–L153. 15 indexed citations
3.
Ewen, Harold I., et al.. (1968). Microwave radiometric capabilities and techniques.. NASA Technical Reports Server (NASA). 2 indexed citations
4.
Dieter, Nannielou H. & Harold I. Ewen. (1964). Radio Observations of the Interstellar OH Line at 1,667 Mc/s. Nature. 201(4916). 279–281. 13 indexed citations
5.
Drake, F. D. & Harold I. Ewen. (1958). A Broad-Band Microwave Source Comparison Radiometer for Advanced Research in Radio Astronomy. Proceedings of the IRE. 46(1). 53–60. 24 indexed citations
6.
Bok, Bart J. & Harold I. Ewen. (1954). Research of the 21 CM radiation at Agassiz Station.. The Astronomical Journal. 59. 318–318.
7.
Ewen, Harold I.. (1953). Radio Waves from Interstellar Hydrogen. Scientific American. 189(6). 42–46. 3 indexed citations
8.
Ewen, Harold I.. (1951). Radiation from Galactic Hydrogen at 1420 Megacycles Per Second.. PhDT. 2 indexed citations
9.
Ewen, Harold I. & Edward M. Purcell. (1951). Observation of a Line in the Galactic Radio Spectrum: Radiation from Galactic Hydrogen at 1,420 Mc./sec.. Nature. 168(4270). 356–356. 148 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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2026