Christopher Usher

2.7k total citations
59 papers, 1.8k citations indexed

About

Christopher Usher is a scholar working on Astronomy and Astrophysics, Instrumentation and Radiation. According to data from OpenAlex, Christopher Usher has authored 59 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Astronomy and Astrophysics, 36 papers in Instrumentation and 4 papers in Radiation. Recurrent topics in Christopher Usher's work include Stellar, planetary, and galactic studies (51 papers), Astronomy and Astrophysical Research (36 papers) and Galaxies: Formation, Evolution, Phenomena (33 papers). Christopher Usher is often cited by papers focused on Stellar, planetary, and galactic studies (51 papers), Astronomy and Astrophysical Research (36 papers) and Galaxies: Formation, Evolution, Phenomena (33 papers). Christopher Usher collaborates with scholars based in United States, United Kingdom and Australia. Christopher Usher's co-authors include Duncan A. Forbes, Aaron J. Romanowsky, Jean P. Brodie, Jay Strader, N. Bastian, Vincenzo Pota, Caroline Foster, Lee R. Spitler, Jacob A. Arnold and Nicola Pastorello 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

Christopher Usher

58 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Christopher Usher United States 27 1.8k 1.1k 70 47 47 59 1.8k
Tucker Jones United States 25 1.6k 0.9× 642 0.6× 170 2.4× 24 0.5× 99 2.1× 74 1.8k
C. De Santis Italy 14 736 0.4× 460 0.4× 98 1.4× 16 0.3× 30 0.6× 30 803
John M. Cannon United States 25 1.9k 1.1× 771 0.7× 164 2.3× 20 0.4× 51 1.1× 91 2.0k
E. Sani Italy 23 1.5k 0.9× 444 0.4× 327 4.7× 14 0.3× 68 1.4× 46 1.6k
C. Waters United States 23 1.7k 1.0× 473 0.4× 228 3.3× 43 0.9× 58 1.2× 63 1.8k
L. Michel-Dansac France 27 1.7k 1.0× 717 0.7× 229 3.3× 26 0.6× 56 1.2× 47 1.8k
Emma Ryan‐Weber Australia 22 1.6k 0.9× 444 0.4× 428 6.1× 15 0.3× 55 1.2× 58 1.7k
R. H. Méndez United States 19 926 0.5× 541 0.5× 48 0.7× 12 0.3× 29 0.6× 85 1.1k
Xinyu Dai United States 27 1.5k 0.9× 309 0.3× 449 6.4× 13 0.3× 118 2.5× 72 1.7k
Kyoko Matsushita Japan 29 2.0k 1.2× 311 0.3× 441 6.3× 13 0.3× 58 1.2× 92 2.2k

Countries citing papers authored by Christopher Usher

Since Specialization
Citations

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

Fields of papers citing papers by Christopher Usher

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christopher Usher. 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 Christopher Usher. The network helps show where Christopher Usher may publish in the future.

Co-authorship network of co-authors of Christopher Usher

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

All Works

20 of 20 papers shown
1.
Usher, Christopher, Nelson Caldwell, & I. Cabrera-Ziri. (2024). Measuring M31 globular cluster ages and metallicities using both photometry and spectroscopy. Monthly Notices of the Royal Astronomical Society. 528(4). 6010–6024. 5 indexed citations
2.
Adamo, Angela, Matthew Hayes, T. Emil Rivera-Thorsen, et al.. (2024). CLusters in the Uv as EngineS (CLUES). II. Subkiloparsec-scale Outflows Driven by Stellar Feedback. The Astronomical Journal. 167(4). 166–166. 3 indexed citations
3.
Schaerer, D., Matteo Messa, A. Adamo, et al.. (2023). Search strategies for supermassive stars in young clusters and application to nearby galaxies. Astronomy and Astrophysics. 674. A140–A140.
4.
Saracino, Sara, Sebastian Kamann, N. Bastian, et al.. (2023). A closer look at the binary content of NGC 1850. Monthly Notices of the Royal Astronomical Society. 526(1). 299–322. 5 indexed citations
5.
Adamo, Angela, Christopher Usher, Joel Pfeffer, & Adélaïde Claeyssens. (2023). The ages and metallicities of the globular clusters in the Sparkler. Monthly Notices of the Royal Astronomical Society Letters. 525(1). L6–L10. 11 indexed citations
6.
Saracino, Sara, T. Shenar, Sebastian Kamann, et al.. (2023). Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1. Monthly Notices of the Royal Astronomical Society. 521(2). 3162–3171. 16 indexed citations
7.
McLeod, Anna F., L. J. Smith, Jiayi Sun, et al.. (2022). Stellar feedback in M 83 as observed with MUSE. Astronomy and Astrophysics. 666. A29–A29. 11 indexed citations
8.
Amram, P., Erik Rosolowsky, Christopher Usher, et al.. (2022). Stellar feedback in M83 as observed with MUSE. Astronomy and Astrophysics. 660. A77–A77. 10 indexed citations
9.
Kamann, Sebastian, Christopher Usher, Holger Baumgardt, et al.. (2020). The WAGGS project-III. Discrepant mass-to-light ratios of Galactic globular clusters at high metallicity. Monthly Notices of the Royal Astronomical Society. 492(3). 3859–3871. 12 indexed citations
10.
Bastian, N., C. Lardo, Christopher Usher, et al.. (2020). Searching for multiple populations in the integrated light of the young and extremely massive clusters in the merger remnant NGC 7252. Monthly Notices of the Royal Astronomical Society. 494(1). 332–337. 9 indexed citations
11.
Usher, Christopher, Sabine Bellstedt, Adebusola Alabi, et al.. (2018). The WAGGS project – II. The reliability of the calcium triplet as a metallicity indicator in integrated stellar light. Monthly Notices of the Royal Astronomical Society. 482(1). 1275–1303. 21 indexed citations
12.
Usher, Christopher, Joel Pfeffer, N. Bastian, et al.. (2018). The origin of the ‘blue tilt’ of globular cluster populations in the E-MOSAICS simulations. Monthly Notices of the Royal Astronomical Society. 480(3). 3279–3301. 36 indexed citations
13.
Chantereau, W., Christopher Usher, & N. Bastian. (2018). Multiple populations within globular clusters in early-type galaxies exploring their effect on stellar initial mass function estimates. Monthly Notices of the Royal Astronomical Society. 478(2). 2368–2387. 5 indexed citations
14.
Martocchia, S., N. Bastian, Christopher Usher, et al.. (2017). The search for multiple populations in Magellanic Cloud Clusters – III. No evidence for multiple populations in the SMC cluster NGC 419. Monthly Notices of the Royal Astronomical Society. 468(3). 3150–3158. 53 indexed citations
15.
Bastian, N., I. Cabrera-Ziri, Florian Niederhofer, et al.. (2016). A high fraction of Be stars in young massive clusters: evidence for a large population of near-critically rotating stars. Monthly Notices of the Royal Astronomical Society. 465(4). 4795–4799. 49 indexed citations
16.
Pastorello, Nicola, Duncan A. Forbes, Caroline Foster, et al.. (2014). The SLUGGS survey: exploring the metallicity gradients of nearby early-type galaxies to large radii. Monthly Notices of the Royal Astronomical Society. 442(2). 1003–1039. 54 indexed citations
17.
Arnold, Jacob A., Aaron J. Romanowsky, Jean P. Brodie, et al.. (2014). THE SLUGGS SURVEY: WIDE-FIELD STELLAR KINEMATICS OF EARLY-TYPE GALAXIES. The Astrophysical Journal. 791(2). 80–80. 75 indexed citations
18.
Cooke, Kirsten L., et al.. (2008). A dosimetric comparison between two intensity-modulated radiotherapy techniques: tomotherapyvsdynamic linear accelerator. British Journal of Radiology. 81(964). 333–340. 22 indexed citations
19.
Plowman, P.N. & Christopher Usher. (2005). Author's reply. British Journal of Radiology. 78(927). 285–286. 1 indexed citations
20.
Breen, Stephen, et al.. (2004). A comparison of conventional, conformal and intensity-modulated coplanar radiotherapy plans for posterior fossa treatment. British Journal of Radiology. 77(921). 768–774. 27 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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