R. M. Humphreys

8.3k total citations · 2 hit papers
187 papers, 4.9k citations indexed

About

R. M. Humphreys is a scholar working on Astronomy and Astrophysics, Instrumentation and Computational Mechanics. According to data from OpenAlex, R. M. Humphreys has authored 187 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 165 papers in Astronomy and Astrophysics, 104 papers in Instrumentation and 34 papers in Computational Mechanics. Recurrent topics in R. M. Humphreys's work include Stellar, planetary, and galactic studies (144 papers), Astronomy and Astrophysical Research (104 papers) and Astrophysics and Star Formation Studies (62 papers). R. M. Humphreys is often cited by papers focused on Stellar, planetary, and galactic studies (144 papers), Astronomy and Astrophysical Research (104 papers) and Astrophysics and Star Formation Studies (62 papers). R. M. Humphreys collaborates with scholars based in United States, Germany and Chile. R. M. Humphreys's co-authors include Kris Davidson, K. Davidson, D. B. McElroy, Nathan Smith, T. J. Jones, Jeffrey A. Larsen, K. Z. Stanek, S. C. Odewahn, R. D. Gehrz and Allan Sandage and has published in prestigious journals such as Science, The Astrophysical Journal and The Astrophysical Journal Supplement Series.

In The Last Decade

R. M. Humphreys

175 papers receiving 4.7k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The luminous blue variables: Astrophysical geysers

1994 549 citations R. M. Humphreys, Kris Davidson Publications of the Astronomical Society of the Pacific profile →
Studies of luminous stars in nearby galaxies. I. Supergiants and O stars in the Milky Way.

1978 447 citations R. M. Humphreys profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. M. Humphreys United States	33	4.7k	1.4k	463	258	146	187	4.9k
F. Ochsenbein France	11	2.5k 0.5×	944 0.7×	356 0.8×	275 1.1×	97 0.7×	66	2.7k
George H. Jacoby United States	43	6.4k 1.4×	2.4k 1.7×	792 1.7×	266 1.0×	357 2.4×	204	6.7k
P. Fouqué France	31	4.2k 0.9×	1.7k 1.2×	443 1.0×	197 0.8×	180 1.2×	109	4.4k
P. Bunclark United Kingdom	7	2.9k 0.6×	711 0.5×	644 1.4×	118 0.5×	120 0.8×	21	3.0k
R. W. Argyle France	13	3.0k 0.6×	656 0.5×	641 1.4×	256 1.0×	197 1.3×	51	3.1k
N. C. Hambly United Kingdom	31	3.9k 0.8×	1.7k 1.2×	382 0.8×	381 1.5×	157 1.1×	119	4.0k
A. C. Robin France	32	4.3k 0.9×	2.0k 1.4×	239 0.5×	136 0.5×	256 1.8×	110	4.5k
E. A. Magnier United States	32	3.8k 0.8×	1.1k 0.7×	484 1.0×	171 0.7×	179 1.2×	131	4.0k
B. Koribalski Australia	33	3.7k 0.8×	1.2k 0.8×	816 1.8×	101 0.4×	132 0.9×	201	3.8k
S. C. Trager Netherlands	31	3.3k 0.7×	1.8k 1.2×	290 0.6×	98 0.4×	208 1.4×	98	3.5k

Countries citing papers authored by R. M. Humphreys

Since Specialization

Citations

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

Fields of papers citing papers by R. M. Humphreys

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. M. Humphreys

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

Martin, John C., R. M. Humphreys, & Kris Davidson. (2025). On the Spatial Distribution of Luminous Blue Variables, B [ e ] Supergiants, and Wolf–Rayet Stars in the Large Magellanic Cloud. The Astrophysical Journal. 994(2). 159–159.

Humphreys, R. M., et al.. (2024). The Hidden Clumps in VY CMa Uncovered by the Atacama Large Millimeter/submillimeter Array. The Astronomical Journal. 167(3). 94–94. 7 indexed citations

Jones, T. J., D. Shenoy, & R. M. Humphreys. (2023). The Recent Mass Loss History of the Hypergiant RW Cep. Research Notes of the AAS. 7(5). 92–92. 3 indexed citations

Richards, A. M. S., et al.. (2023). ALMA Reveals Hidden Morphologies in the Molecular Envelope of VY Canis Majoris. The Astrophysical Journal Letters. 954(1). L1–L1. 9 indexed citations

Humphreys, R. M., T. J. Jones, & John C. Martin. (2023). Yellow Supergiants and Post-red Supergiant Evolution in the Large Magellanic Cloud. The Astronomical Journal. 166(2). 50–50. 12 indexed citations

Martin, John C. & R. M. Humphreys. (2023). A Census of the Most Luminous Stars. I. The Upper HR Diagram for the Large Magellanic Cloud. The Astronomical Journal. 166(5). 214–214. 4 indexed citations

Richards, A. M. S., Yoshiharu Asaki, A. Baudry, et al.. (2022). Water masers high resolution measurements of the diverse conditions in evolved star winds. Proceedings of the International Astronomical Union. 18(S380). 389–391.

Humphreys, R. M., et al.. (2021). Molecules and Outflows in NML Cygni: New Insights from a 1 mm Spectral Line Survey. The Astrophysical Journal Letters. 920(2). L38–L38. 10 indexed citations

Mehner, A., W. Steffen, J. H. Groh, et al.. (2016). Dissecting a supernova impostor's circumstellar medium: MUSEing about the SHAPE of eta Carinae's outer ejecta. White Rose Research Online (University of Leeds, The University of Sheffield, University of York). 8 indexed citations

10.

Humphreys, R. M., John C. Martin, Michael Gordon, & T. J. Jones. (2016). MULTIPLE OUTFLOWS IN THE GIANT ERUPTION OF A MASSIVE STAR^*. The Astrophysical Journal. 826(2). 191–191. 8 indexed citations

11.

Davidson, Kris, A. Mehner, R. M. Humphreys, & John Martin. (2014). Eta Car's spectroscopic event compared to 2009. ATel. 6448. 1. 1 indexed citations

12.

Dyk, Schuyler D. Van, P. Challis, R. J. Foley, et al.. (2006). The Type IIn Supernova 2002kg: The Outburst of a Luminous Blue Variable Star in NGC 2403. Publications of the Astronomical Society of the Pacific.

13.

Humphreys, R. M., et al.. (2006). Mapping the Asymmetric Thick Disk. 106. 1 indexed citations

14.

Humphreys, R. M.. (1993). The Minnesota lectures on the structure and dynamics of the Milky Way. Astronomical Society of the Pacific eBooks. 4 indexed citations

15.

Odewahn, S. C., et al.. (1993). Galaxy Properties at the North Galactic Pole. AAS. 183. 1 indexed citations

16.

Pennington, R. L., et al.. (1990). The Automated Plate Scanner Catalog of the Palomar Sky Survey - Astrometry and Photometry. Bulletin of the American Astronomical Society. 22. 1325. 1 indexed citations

17.

Berkhuijsen, E. M., et al.. (1988). A catalogue of the brightest stars in the field of M 31.. Astronomy & Astrophysics Supplement Series. 76(1). 65–99. 2 indexed citations

18.

Humphreys, R. M. & J. Whelan. (1975). On the distance to Centaurus X-3. Observatory. 95. 171–173. 1 indexed citations

19.

Humphreys, R. M.. (1973). Spectroscopic., photometric observations of luminous stars in Car-Cen.. Astronomy & Astrophysics Supplement Series. 9. 85.

20.

Humphreys, R. M.. (1969). M Supergiants in the Perseus Arm. Bulletin of the American Astronomical Society. 1. 349. 1 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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