This map shows the geographic impact of J. C. Hall'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 J. C. Hall with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. C. Hall more than expected).
This network shows the impact of papers produced by J. C. Hall. 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 J. C. Hall. The network helps show where J. C. Hall may publish in the future.
Co-authorship network of co-authors of J. C. Hall
This figure shows the co-authorship network connecting the top 25 collaborators of J. C. Hall.
A scholar is included among the top collaborators of J. C. Hall 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 J. C. Hall. J. C. Hall is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Massey, Philip, Thomas A. Bida, Peter L. Collins, et al.. (2013). As Big and As Good As It Gets: The Large Monolithic Imager for Lowell Observatory's 4.3-m Discovery Channel Telescope. 221.2 indexed citations
6.
Metcalfe, Τ. S., Alessio Paolo Buccino, Benjamin P. Brown, et al.. (2013). Magnetic Activity Cycles in the Exoplanet Host Star ǫ Eridani. CONICET Digital (CONICET).34 indexed citations
7.
Mittag, M., A. Hempelmann, J. N. González‐Pérez, J. H. M. M. Schmitt, & J. C. Hall. (2011). Results of the First Observations with the Hamburg Robotic Telescope. ASPC. 448. 1187.1 indexed citations
8.
Roe, H. G., et al.. (2011). A near-infrared spectrograph for the Discovery Channel Telescope. epsc. 2011. 1823.
Hempelmann, A., J. Robrade, J. H. M. M. Schmitt, et al.. (2006). Coronal activity cycles in 61 Cygni. Astronomy and Astrophysics. 460(1). 261–267.35 indexed citations
13.
Hall, J. C. & G. W. Lockwood. (2004). The Distribution and Variability of Chromospheric Activity in a Large Sample of Solar Analogs. AAS. 204.1 indexed citations
14.
Giampapa, M. S., J. C. Hall, R. R. Radick, & S. L. Baliunas. (2003). Chromospheric Activity in Solar-Type Stars.1 indexed citations
15.
Giampapa, M. S., R. R. Radick, J. C. Hall, & S. L. Baliunas. (2000). A Survey of Activity in the Solar-Type Stars in M67. 31.1 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.