Bruce A. Twarog

2.4k total citations
78 papers, 1.6k citations indexed

About

Bruce A. Twarog is a scholar working on Astronomy and Astrophysics, Instrumentation and Nuclear and High Energy Physics. According to data from OpenAlex, Bruce A. Twarog has authored 78 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 69 papers in Astronomy and Astrophysics, 46 papers in Instrumentation and 8 papers in Nuclear and High Energy Physics. Recurrent topics in Bruce A. Twarog's work include Stellar, planetary, and galactic studies (68 papers), Astronomy and Astrophysical Research (46 papers) and Astrophysics and Star Formation Studies (32 papers). Bruce A. Twarog is often cited by papers focused on Stellar, planetary, and galactic studies (68 papers), Astronomy and Astrophysical Research (46 papers) and Astrophysics and Star Formation Studies (32 papers). Bruce A. Twarog collaborates with scholars based in United States, Chile and China. Bruce A. Twarog's co-authors include Barbara J. Anthony-Twarog, Keith Ashman, Constantine P. Deliyannis, R. D. McClure, P. E. Nissen, David L. Crawford, Jeffrey D. Cummings, Robert D. Mathieu, David W. Latham and J. C. Wheeler and has published in prestigious journals such as Nature Communications, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

Bruce A. Twarog

74 papers receiving 1.5k citations

Peers

Bruce A. Twarog
Eileen D. Friel United States
Christian I. Johnson United States
K. M. Cudworth United States
Letizia Stanghellini United States
C. Martínez-Roger Spain
James L. Higdon United States
R. B. C. Henry United States
A. E. Gómez France
M. Perinotto Italy
T. Bensby United States
Eileen D. Friel United States
Bruce A. Twarog
Citations per year, relative to Bruce A. Twarog Bruce A. Twarog (= 1×) peers Eileen D. Friel

Countries citing papers authored by Bruce A. Twarog

Since Specialization
Citations

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

Fields of papers citing papers by Bruce A. Twarog

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Bruce A. Twarog. 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 Bruce A. Twarog. The network helps show where Bruce A. Twarog may publish in the future.

Co-authorship network of co-authors of Bruce A. Twarog

This figure shows the co-authorship network connecting the top 25 collaborators of Bruce A. Twarog. A scholar is included among the top collaborators of Bruce A. Twarog 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 Bruce A. Twarog. Bruce A. Twarog 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.
Deliyannis, Constantine P., et al.. (2025). Lithium Abundances of Main-sequence Stars in the Old Open Cluster NGC 188: Probes of Stellar Evolution beyond the Solar Age∗. The Astrophysical Journal. 992(1). 75–75.
2.
Deliyannis, Constantine P., Barbara J. Anthony-Twarog, Bruce A. Twarog, et al.. (2025). Subgiants in NGC 188 reveal that rotationally induced mixing creates the main sequence Li-Dip. Nature Communications. 16(1). 9729–9729. 1 indexed citations
3.
Anthony-Twarog, Barbara J., et al.. (2024). Li Evolution among Stars of Low/Intermediate Mass: the Metal-deficient Open Cluster NGC 2204. The Astronomical Journal. 168(3). 103–103. 1 indexed citations
4.
Twarog, Bruce A., Barbara J. Anthony-Twarog, & Constantine P. Deliyannis. (2023). A uvbyCaHβ CCD Analysis of the Open Cluster Standard, M67, and Its Relation to NGC 752. The Astronomical Journal. 165(3). 105–105. 2 indexed citations
5.
Deliyannis, Constantine P., et al.. (2023). WIYN Open Cluster Study 89. M48 (NGC 2548) 2: Lithium Abundances in the 420 Myr Open Cluster M48 from Giants through K Dwarfs* †. The Astrophysical Journal. 952(1). 71–71. 14 indexed citations
6.
Anthony-Twarog, Barbara J., Constantine P. Deliyannis, & Bruce A. Twarog. (2020). WIYN Open Cluster Study. LXXXI. Caught in the Act? The Peculiar Red Giant NGC 2243-W2135. The Astronomical Journal. 160(2). 75–75. 2 indexed citations
7.
Twarog, Bruce A., Barbara J. Anthony-Twarog, Constantine P. Deliyannis, & A. Steinhauer. (2020). Intermediate-to-low mass stars in open clusters and the evolution of Li. MmSAI. 91. 74. 1 indexed citations
8.
Anthony-Twarog, Barbara J., et al.. (2018). WIYN Open Cluster Study. LXXVI. Li Evolution Among Stars of Low/Intermediate Mass: The Metal-deficient Open Cluster NGC 2506. The Astronomical Journal. 155(3). 138–138. 15 indexed citations
9.
Anthony-Twarog, Barbara J., Constantine P. Deliyannis, & Bruce A. Twarog. (2014). AuvbyCaHβ ANALYSIS OF THE OLD OPEN CLUSTER, NGC 6819. The Astronomical Journal. 148(3). 51–51. 15 indexed citations
10.
Anthony-Twarog, Barbara J., Constantine P. Deliyannis, Evan A. Rich, & Bruce A. Twarog. (2013). A LITHIUM-RICH RED GIANT BELOW THE CLUMP IN THE KEPLER CLUSTER, NGC 6819. The Astrophysical Journal Letters. 767(1). L19–L19. 26 indexed citations
11.
Anthony-Twarog, Barbara J., et al.. (2010). WIYN OPEN CLUSTER STUDY. XXXIX. ABUNDANCES IN NGC 6253 FROM HYDRA SPECTROSCOPY OF THE Li 6708 Å REGION. The Astronomical Journal. 139(5). 2034–2051. 20 indexed citations
12.
Martin, Robert N., et al.. (2007). Final assembly of the ULTRA 1-m carbon fiber optical telescope. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6665. 66650C–66650C. 4 indexed citations
13.
Twarog, Bruce A. & Barbara J. Anthony-Twarog. (1995). CA II H and K Filter Photometry on the UVBY System. II. The Catalog of Observations. The Astronomical Journal. 109. 2828–2828. 36 indexed citations
14.
Twarog, Bruce A. & Barbara J. Anthony-Twarog. (1994). DDO metallicity calibration for metal-deficient red giants and the disk-halo transition. The Astronomical Journal. 107. 1371–1371. 18 indexed citations
15.
Anthony-Twarog, Barbara J. & Bruce A. Twarog. (1994). Reddening estimation for halo red giants using UVBY photometry. The Astronomical Journal. 107. 1577–1577. 55 indexed citations
16.
Anthony-Twarog, Barbara J., et al.. (1991). A BV photographic and CCD analysis of the intermediate-age open cluster NGC 3680. The Astronomical Journal. 102. 1056–1056. 20 indexed citations
17.
Anthony-Twarog, Barbara J., et al.. (1988). BV photographic and CCD photometry of IC 4651. The Astronomical Journal. 95. 1453–1453. 18 indexed citations
18.
Twarog, Bruce A.. (1983). PDS Photometry in NGC 188. Bulletin of the American Astronomical Society. 15. 645. 1 indexed citations
19.
Twarog, Bruce A.. (1980). The chemical evolution of the solar neighborhood. I - A bias-free reduction technique and data sample. The Astrophysical Journal Supplement Series. 44. 1–1. 19 indexed citations
20.
McClure, R. D. & Bruce A. Twarog. (1977). New pgotographic data for NGC 188.. The Astrophysical Journal. 214. 111–111. 15 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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