C. R. Pennypacker

3.4k total citations · 1 hit paper
29 papers, 1.8k citations indexed

About

C. R. Pennypacker is a scholar working on Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics and Computational Mechanics. According to data from OpenAlex, C. R. Pennypacker has authored 29 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Astronomy and Astrophysics, 4 papers in Atomic and Molecular Physics, and Optics and 4 papers in Computational Mechanics. Recurrent topics in C. R. Pennypacker's work include Pulsars and Gravitational Waves Research (8 papers), Gamma-ray bursts and supernovae (6 papers) and Astro and Planetary Science (5 papers). C. R. Pennypacker is often cited by papers focused on Pulsars and Gravitational Waves Research (8 papers), Gamma-ray bursts and supernovae (6 papers) and Astro and Planetary Science (5 papers). C. R. Pennypacker collaborates with scholars based in United States, Australia and Germany. C. R. Pennypacker's co-authors include Edward M. Purcell, A. Buffington, S. M. Schindler, Joshua Ball, Kinshuk Govil, J. Middleditch, M. S. Burns, James Miller, Graeme L. White and S. M. Ransom and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and The Astrophysical Journal.

In The Last Decade

C. R. Pennypacker

24 papers receiving 1.7k citations

Hit Papers

Scattering and Absorption of Light by Nonspherical Dielec... 1973 2026 1990 2008 1973 400 800 1.2k
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.

  1. Scattering and Absorption of Light by Nonspherical Dielectric Grains
    1973 1.5k citations C. R. Pennypacker et al. The Astrophysical Journal profile →

Peers

C. R. Pennypacker
D. H. Douglass United States
Eugenie Kirk Switzerland
Н. В. Вощинников Russia
Victor Steinberg Israel
Ingo Rehberg Germany
S. Heß Germany
W. Pesch Germany
P. Denti Italy
F. Borghese Italy
S. G. Lipson Israel
D. H. Douglass United States
C. R. Pennypacker
Citations per year, relative to C. R. Pennypacker C. R. Pennypacker (= 1×) peers D. H. Douglass

Countries citing papers authored by C. R. Pennypacker

Since Specialization
Citations

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

Fields of papers citing papers by C. R. Pennypacker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. R. Pennypacker

This figure shows the co-authorship network connecting the top 25 collaborators of C. R. Pennypacker. A scholar is included among the top collaborators of C. R. Pennypacker 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 C. R. Pennypacker. C. R. Pennypacker 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.
Miller, Patrick, R. Weryk, R. J. Wainscoat, et al.. (2024). The International Astronomical Search Collaboration (IASC)—Citizen Scientist System for Asteroid Discovery. Publications of the Astronomical Society of the Pacific. 136(2). 24502–24502.
2.
Pennypacker, C. R., M. Jakubowski, Maggi Kelly, et al.. (2013). FUEGO — Fire Urgency Estimator in Geosynchronous Orbit — A Proposed Early-Warning Fire Detection System. Remote Sensing. 5(10). 5173–5192. 10 indexed citations
3.
Miller, James, et al.. (2008). An International Asteroid Search Campaign. Astronomy Education Review. 7(1). 57–83. 3 indexed citations
4.
Miller, James, C. R. Pennypacker, & Graeme L. White. (2008). Optimal Image Subtraction Method: Summary Derivations, Applications, and Publicly Shared Application Using IDL. Publications of the Astronomical Society of the Pacific. 120(866). 449–464. 19 indexed citations
5.
Miller, James, et al.. (2007). Asteroid Search Campaign: A Pilot Program for High School & College Students. Lunar and Planetary Science Conference. 1003. 1 indexed citations
6.
Pennypacker, C. R., et al.. (2004). Positive Developments in Hands-On Universe. American Astronomical Society Meeting Abstracts. 205.
7.
Hessman, F. V., et al.. (2004). Telescope networking and user support via Remote Telescope Markup Language. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5496. 290–290.
8.
Holland, S., G. Goldhaber, D. E. Groom, et al.. (2002). A 200×200 CCD image sensor fabricated on high-resistivity silicon. 911–914. 21 indexed citations
9.
Pennypacker, C. R., et al.. (1995). Localized or Systemic In Vivo Heat Inactivation of Human Immunodeficiency Virus (HIV). Journal of Acquired Immune Deficiency Syndromes & Human Retrovirology. 8(4). 321???329–321???329. 13 indexed citations
10.
Ransom, S. M., G. G. Fazio, S. S. Eikenberry, et al.. (1994). High time resolution infrared observations of the Crab Nebula pulsar. The Astrophysical Journal. 431. L43–L43. 6 indexed citations
11.
Perlmutter, S., et al.. (1992). A doubly robotic telescope: the Berkeley Automated Supernova Search.. NASA Technical Reports Server (NASA). 103. 67–71.
12.
Burns, M. S., Frank S. Crawford, Peter G. Friedman, et al.. (1988). Automated search for supernova explosions. Review of Scientific Instruments. 59(7). 1021–1030. 2 indexed citations
13.
Middleditch, J., C. R. Pennypacker, & M. S. Burns. (1987). Optical color, polarimetric, and timing measurements of the 50 MS Large Magellanic Cloud pulsar, PSR 0540-69. The Astrophysical Journal. 315. 142–142. 37 indexed citations
14.
Middleditch, J., C. R. Pennypacker, & M. S. Burns. (1986). An Optical Color, Polarization, and Timing Study of the 50 Millisecond Large Magellanic Cloud Pulsar, PSRO540-69. Bulletin of the American Astronomical Society. 18. 1049. 1 indexed citations
15.
Middleditch, J., R. C. Puetter, & C. R. Pennypacker. (1985). Optical and infrared pulsations from the HZ Herculis binary system during the 1983 prolonged X-ray low state. The Astrophysical Journal. 292. 267–267. 3 indexed citations
16.
Middleditch, J., Bernard M. Oliver, C. R. Pennypacker, et al.. (1983). A search for pulsed IR and near-IR emission from PSR1937 + 214. Nature. 306(5939). 163–164. 4 indexed citations
17.
Pennypacker, C. R., et al.. (1983). Infrared study of the Crab pulsar - The 'shoulder' pulse and the 3.45 micron pulse profile. The Astrophysical Journal. 273. 261–261. 11 indexed citations
18.
Buffington, A., S. M. Schindler, & C. R. Pennypacker. (1981). A measurement of the cosmic-ray antiproton flux and a search for antihelium. The Astrophysical Journal. 248. 1179–1179. 100 indexed citations
19.
Pennypacker, C. R.. (1981). Infrared studies of pulsars. The Astrophysical Journal. 244. 286–286. 1 indexed citations
20.
Pennypacker, C. R., G. F. Smoot, A. Buffington, Richard A. Muller, & Lee Smith. (1973). Measurement of geomagnetic cutoff rigidities and particle fluxes below geomagnetic cutoff near Palestine, Texas. Journal of Geophysical Research Atmospheres. 78(10). 1515–1527. 14 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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