G. M. Harper

2.0k total citations
78 papers, 1.2k citations indexed

About

G. M. Harper is a scholar working on Astronomy and Astrophysics, Instrumentation and Oceanography. According to data from OpenAlex, G. M. Harper has authored 78 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Astronomy and Astrophysics, 13 papers in Instrumentation and 5 papers in Oceanography. Recurrent topics in G. M. Harper's work include Stellar, planetary, and galactic studies (66 papers), Astrophysics and Star Formation Studies (43 papers) and Astro and Planetary Science (29 papers). G. M. Harper is often cited by papers focused on Stellar, planetary, and galactic studies (66 papers), Astrophysics and Star Formation Studies (43 papers) and Astro and Planetary Science (29 papers). G. M. Harper collaborates with scholars based in United States, Ireland and United Kingdom. G. M. Harper's co-authors include Alexander Brown, T. R. Ayres, E. F. Guinan, A. G. A. Brown, Brian E. Wood, Jeffrey L. Linsky, Jeremy Lim, E. O’Gorman, A. M. S. Richards and N. Ryde and has published in prestigious journals such as The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society and Astronomy and Astrophysics.

In The Last Decade

G. M. Harper

76 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
G. M. Harper United States	20	1.1k	223	72	60	44	78	1.2k
I. Pagano Italy	20	945 0.8×	304 1.4×	62 0.9×	20 0.3×	44 1.0×	77	1.0k
D. Gandolfi Italy	20	1.0k 0.9×	305 1.4×	27 0.4×	22 0.4×	109 2.5×	55	1.0k
R. Faraggiana Italy	13	888 0.8×	304 1.4×	47 0.7×	60 1.0×	27 0.6×	49	933
T. A. A. Sigut Canada	20	1.1k 1.0×	287 1.3×	73 1.0×	33 0.6×	18 0.4×	50	1.1k
S. L. Casewell United Kingdom	20	942 0.8×	346 1.6×	72 1.0×	26 0.4×	19 0.4×	89	974
Z. Magic Germany	17	1.3k 1.2×	544 2.4×	68 0.9×	118 2.0×	27 0.6×	24	1.4k
R. S. I. Ryans United Kingdom	20	1.7k 1.5×	654 2.9×	115 1.6×	52 0.9×	45 1.0×	58	1.7k
Kunio Noguchi Japan	13	1.1k 0.9×	311 1.4×	103 1.4×	73 1.2×	67 1.5×	44	1.1k
F. M. Walter United States	20	1.5k 1.3×	291 1.3×	45 0.6×	115 1.9×	86 2.0×	84	1.5k
T. P. Downes Ireland	17	943 0.8×	111 0.5×	59 0.8×	276 4.6×	36 0.8×	47	994

Countries citing papers authored by G. M. Harper

Since Specialization

Citations

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

Fields of papers citing papers by G. M. Harper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of G. M. Harper

This figure shows the co-authorship network connecting the top 25 collaborators of G. M. Harper. A scholar is included among the top collaborators of G. M. Harper 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. M. Harper. G. M. Harper 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

Bertagna, Luca, et al.. (2025). In Situ Data Extraction for Pathway Analysis in an Idealized Atmosphere Configuration of E3SM. Computing in Science & Engineering. 27(1). 40–50. 1 indexed citations

MacLeod, Morgan, Sarah Blunt, Robert J. De Rosa, et al.. (2024). Radial Velocity and Astrometric Evidence for a Close Companion to Betelgeuse. The Astrophysical Journal. 978(1). 50–50. 6 indexed citations

Harper, G. M., Curtis DeWitt, Matthew J. Richter, et al.. (2020). SOFIA-EXES Observations of Betelgeuse during the Great Dimming of 2019/2020. The Astrophysical Journal Letters. 893(1). L23–L23. 8 indexed citations

Montargès, M., W. Homan, D. M. Keller, et al.. (2019). NOEMA maps the CO J = 2 − 1 environment of the red supergiant $\mu$ Cep★. Monthly Notices of the Royal Astronomical Society. 485(2). 2417–2430. 19 indexed citations

Matthews, Lynn D., M. J. Claussen, G. M. Harper, K. M. Menten, & Stephen T. Ridgway. (2019). Unlocking the Secrets of Late-Stage Stellar Evolution and Mass Loss through Radio Wavelength Imaging. MPG.PuRe (Max Planck Society). 51(3). 424. 1 indexed citations

Engle, Scott G., E. F. Guinan, G. M. Harper, et al.. (2017). The Secret Lives of Cepheids: δ Cep—The Prototype of a New Class of Pulsating X-Ray Variable Stars^*. The Astrophysical Journal. 838(1). 67–67. 21 indexed citations

Kervella, P., L. Decin, A. M. S. Richards, et al.. (2017). The close circumstellar environment of Betelgeuse. Astronomy and Astrophysics. 609. A67–A67. 61 indexed citations

Harper, G. M., Curtis DeWitt, Matthew J. Richter, et al.. (2017). SOFIA-EXES Mid-IR Observations of Emission from the Extended Atmosphere of Betelgeuse. The Astrophysical Journal. 836(1). 22–22. 8 indexed citations

O’Gorman, E., G. M. Harper, Alexander Brown, et al.. (2015). Temporal evolution of the size and temperature of Betelgeuse’s extended atmosphere. Springer Link (Chiba Institute of Technology). 9 indexed citations

10.

Carpenter, Kenneth G., et al.. (2014). ANHSTCOS “SNAPSHOT” SPECTRUM OF THE K SUPERGIANT λ Vel (K4Ib-II). The Astrophysical Journal. 794(1). 41–41. 7 indexed citations

11.

Engle, Scott G., E. F. Guinan, G. M. Harper, Hilding R. Neilson, & Nancy Remage Evans. (2014). THE SECRET LIVES OF CEPHEIDS: EVOLUTIONARY CHANGES AND PULSATION-INDUCED SHOCK HEATING IN THE PROTOTYPE CLASSICAL CEPHEID δ Cep. The Astrophysical Journal. 794(1). 80–80. 19 indexed citations

12.

Jönsson, Henrik, N. Ryde, G. M. Harper, et al.. (2014). Chemical evolution of fluorine in the bulge. Astronomy and Astrophysics. 564. A122–A122. 29 indexed citations

13.

Carpenter, Kenneth G., C. J. Schrijver, C. A. Grady, et al.. (2009). Mass Transport Processes and their Roles in the Formation, Structure, and Evolution of Stars and Stellar Systems. arXiv (Cornell University). 2010. 40.

14.

Harper, G. M., et al.. (2004). TEXES Observations of Betelgeuse: Dynamics and Thermodynamics of the Wind Acceleration Zone. Lund University Publications (Lund University). 36. 1425–1425. 3 indexed citations

15.

Stencel, R. E., et al.. (2002). Movie and Description of the 43-GHz SiO Masers in S Per. AAS. 201. 2 indexed citations

16.

Guinan, E. F., I. Ribas, G. M. Harper, & M. Guêdel. (2002). The Evolution of the EUV Sun through Time: Coronal Emission of the Young Sun and its Consequences on Early Planetary Atmospheres and Life. 200. 1 indexed citations

17.

Mullan, D. J., et al.. (1999). GHRS Observations of Cool, Low-Gravity Stars. The Astrophysical Journal. 521. 1 indexed citations

18.

Jordan, C. & G. M. Harper. (1998). Identifications of Emission Lines in GHRS Spectra of RR Tel. 154. 1277. 1 indexed citations

19.

Harper, G. M.. (1994). A computer program for solving multilevel non-LTE radiative transfer problems in spherical geometry, in moving or static atmospheres. Monthly Notices of the Royal Astronomical Society. 268(4). 894–912. 15 indexed citations

20.

Harper, G. M.. (1990). Fe - MG II K line fluorescence in K giant and bright giant stars.. Monthly Notices of the Royal Astronomical Society. 243(3). 381–389. 3 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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