Countries citing papers authored by P. J. Callanan
Since
Specialization
Citations
This map shows the geographic impact of P. J. Callanan'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 P. J. Callanan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. J. Callanan more than expected).
This network shows the impact of papers produced by P. J. Callanan. 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 P. J. Callanan. The network helps show where P. J. Callanan may publish in the future.
Co-authorship network of co-authors of P. J. Callanan
This figure shows the co-authorship network connecting the top 25 collaborators of P. J. Callanan.
A scholar is included among the top collaborators of P. J. Callanan 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 P. J. Callanan. P. J. Callanan is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Garcia, Mary Lynn, et al.. (2010). Optical ID of CXOM31 J004253.1+411422, a bright Black Hole X-ray Nova in M31. ATel. 2474. 1.
6.
Barnard, R., et al.. (2010). 'Re-outburst of M31 source XMMU J004215.8+411924'. The astronomer's telegram. 2682. 1.1 indexed citations
7.
Callanan, P. J., et al.. (2009). NIR Imaging of the Candidate Black Hole Transient XTE J1652-453. ATel. 2125. 1.1 indexed citations
8.
Torres, M. A. P., D. Steeghs, J. E. McClintock, et al.. (2005). Optical Spectroscopy of SWIFT J1753.5-0127. The astronomer's telegram. 551. 1.1 indexed citations
9.
Torres, M. A. P., D. Steeghs, Cullen H. Blake, et al.. (2005). Optical and infrared monitoring of SWIFT J1753.3-0127. ATel. 566. 1.4 indexed citations
10.
Torres, M. A. P., M. García, J. E. McClintock, et al.. (2004). Igr J17418-12122 - USNO 0778-0495204 is an AGN.. The astronomer's telegram. 264. 1.1 indexed citations
Prestwich, Andrea, P. J. Callanan, S. L. Snowden, et al.. (1996). Spectral Calibration of the ROSAT HRI. American Astronomical Society Meeting Abstracts. 189.1 indexed citations
15.
Callanan, P. J., M. R. Garcia, A. V. Filippenko, Ian S. McLean, & Harry I. Teplitz. (1996). On the Mass of the Black Hole in GS 2000+25. The Astrophysical Journal. 470(1). L57–L60.17 indexed citations
Machin, G., P. J. Callanan, P. A. Charles, et al.. (1990). Optical and X-ray observations of 4U 0614+09.. Monthly Notices of the Royal Astronomical Society. 247(2). 205–213.12 indexed citations
19.
Machin, G., H. J. Lehto, I. McHardy, P. J. Callanan, & P. A. Charles. (1990). VLA observations of four bright globular cluster X-ray sources.. Monthly Notices of the Royal Astronomical Society. 246(2). 237–242.7 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.