Joseph Ryan

546 total citations
16 papers, 401 citations indexed

About

Joseph Ryan is a scholar working on Astronomy and Astrophysics, Statistical and Nonlinear Physics and Radiation. According to data from OpenAlex, Joseph Ryan has authored 16 papers receiving a total of 401 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Astronomy and Astrophysics, 2 papers in Statistical and Nonlinear Physics and 2 papers in Radiation. Recurrent topics in Joseph Ryan's work include Galaxies: Formation, Evolution, Phenomena (10 papers), Cosmology and Gravitation Theories (9 papers) and Gamma-ray bursts and supernovae (6 papers). Joseph Ryan is often cited by papers focused on Galaxies: Formation, Evolution, Phenomena (10 papers), Cosmology and Gravitation Theories (9 papers) and Gamma-ray bursts and supernovae (6 papers). Joseph Ryan collaborates with scholars based in United States, Netherlands and Germany. Joseph Ryan's co-authors include Bharat Ratra, Shulei Cao, Yun Chen, Narayan Khadka, J. Knödlseder, U. Oberlack, V. Schönfelder, R. Diehl, P. von Ballmoos and H. Bloemen and has published in prestigious journals such as Monthly Notices of the Royal Astronomical Society, Physical review. D and Journal of Mathematical Physics.

In The Last Decade

Joseph Ryan

15 papers receiving 390 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Joseph Ryan United States	9	376	169	35	27	11	16	401
Víctor H. Cárdenas Chile	14	296 0.8×	190 1.1×	14 0.4×	18 0.7×	26 2.4×	32	328
Alexander van Engelen United States	11	379 1.0×	151 0.9×	37 1.1×	34 1.3×	20 1.8×	31	401
C. Gouiffès France	11	535 1.4×	199 1.2×	26 0.7×	14 0.5×	5 0.5×	32	552
E. Keihänen Finland	9	169 0.4×	85 0.5×	17 0.5×	13 0.5×	15 1.4×	13	188
Kenta Hotokezaka United States	10	495 1.3×	161 1.0×	23 0.7×	28 1.0×	9 0.8×	15	516
Santiago Casas Germany	10	298 0.8×	177 1.0×	30 0.9×	30 1.1×	14 1.3×	31	322
Simon Foreman Canada	10	275 0.7×	130 0.8×	48 1.4×	8 0.3×	16 1.5×	21	302
M. Rameez France	8	415 1.1×	296 1.8×	47 1.3×	10 0.4×	29 2.6×	25	510
Shant Baghram Iran	12	415 1.1×	284 1.7×	14 0.4×	37 1.4×	39 3.5×	38	436
John J. Ruan United States	12	445 1.2×	148 0.9×	67 1.9×	10 0.4×	4 0.4×	32	470

Countries citing papers authored by Joseph Ryan

Since Specialization

Citations

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

Fields of papers citing papers by Joseph Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Joseph Ryan

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

All Works

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16 of 16 papers shown

Ryan, Joseph. (2023). When action is not least for systems with action-dependent Lagrangians. Journal of Mathematical Physics. 64(3). 1 indexed citations

Ryan, Joseph, et al.. (2023). Beyond Fisher forecasting for cosmology. Physical review. D. 107(10). 4 indexed citations

Ryan, Joseph. (2021). Constraints on power law cosmology from cosmic chronometer, standard ruler, and standard candle data. Journal of Cosmology and Astroparticle Physics. 2021(8). 51–51. 9 indexed citations

Cao, Shulei, Joseph Ryan, & Bharat Ratra. (2021). Using Pantheon and DES supernova, baryon acoustic oscillation, and Hubble parameter data to constrain the Hubble constant, dark energy dynamics, and spatial curvature. Monthly Notices of the Royal Astronomical Society. 504(1). 300–310. 72 indexed citations

Cao, Shulei, Joseph Ryan, & Bharat Ratra. (2021). Cosmological constraints from H ii starburst galaxy, quasar angular size, and other measurements. Monthly Notices of the Royal Astronomical Society. 509(4). 4745–4757. 27 indexed citations

Ryan, Joseph. (2020). Evidence against Ryskin’s model of cosmic acceleration. Astroparticle Physics. 118. 102428–102428. 1 indexed citations

Cao, Shulei, Joseph Ryan, & Bharat Ratra. (2020). Cosmological constraints from H ii starburst galaxy apparent magnitude and other cosmological measurements. Monthly Notices of the Royal Astronomical Society. 497(3). 3191–3203. 50 indexed citations

Cao, Shulei, Joseph Ryan, Narayan Khadka, & Bharat Ratra. (2020). Cosmological constraints from higher redshift gamma-ray burst, H ii starburst galaxy, and quasar (and other) data. Monthly Notices of the Royal Astronomical Society. 501(1). 1520–1538. 42 indexed citations

Ryan, Joseph, Yun Chen, & Bharat Ratra. (2019). Baryon acoustic oscillation, Hubble parameter, and angular size measurement constraints on the Hubble constant, dark energy dynamics, and spatial curvature. Monthly Notices of the Royal Astronomical Society. 488(3). 3844–3856. 85 indexed citations

10.

Ryan, Joseph, et al.. (2018). Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data. Monthly Notices of the Royal Astronomical Society. 480(1). 759–767. 80 indexed citations

11.

Wunderer, C., et al.. (2002). SONTRAC-a low background, large area solar neutron spectrometer. University of New Hampshire Scholars Repository (University of New Hampshire at Manchester). 73–76. 4 indexed citations

12.

Knödlseder, J., David Dixon, K. Bennett, et al.. (1999). Image reconstruction of COMPTEL 1.8 MeV 26 Al line data. CERN Bulletin. 345(3). 813–825. 10 indexed citations

13.

Diehl, R., U. Oberlack, J. Knödlseder, et al.. (1997). ²⁶ Al Radioactivity in the Galaxy. International Astronomical Union Colloquium. 166. 393–396. 1 indexed citations

14.

Diehl, R., U. Oberlack, J. Knödlseder, et al.. (1997). Models for COMPTEL [sup 26]Al data. AIP conference proceedings. 1114–1118. 6 indexed citations

15.

Dijk, R. van, K. Bennett, H. Bloemen, et al.. (1995). The black-hole candidate GRO J0422+32: MeV emission measured with COMPTEL. University of New Hampshire Scholars Repository (University of New Hampshire at Manchester). 296.

16.

Bennett, K., et al.. (1993). Comptel observations of solar flare gamma-rays. Advances in Space Research. 13(9). 245–248. 9 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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