P. Uttley

13.5k total citations · 4 hit papers
130 papers, 7.0k citations indexed

About

P. Uttley is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Biomedical Engineering. According to data from OpenAlex, P. Uttley has authored 130 papers receiving a total of 7.0k indexed citations (citations by other indexed papers that have themselves been cited), including 127 papers in Astronomy and Astrophysics, 45 papers in Nuclear and High Energy Physics and 15 papers in Biomedical Engineering. Recurrent topics in P. Uttley's work include Astrophysical Phenomena and Observations (119 papers), Pulsars and Gravitational Waves Research (56 papers) and Galaxies: Formation, Evolution, Phenomena (51 papers). P. Uttley is often cited by papers focused on Astrophysical Phenomena and Observations (119 papers), Pulsars and Gravitational Waves Research (56 papers) and Galaxies: Formation, Evolution, Phenomena (51 papers). P. Uttley collaborates with scholars based in United Kingdom, Netherlands and United States. P. Uttley's co-authors include I. M. McHardy, S. Vaughan, P. Arévalo, Rick Edelson, R. S. Warwick, A. C. Fabian, I. E. Papadakis, Edward M. Cackett, Erin Kara and Abderahmen Zoghbi and has published in prestigious journals such as Nature, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

P. Uttley

125 papers receiving 6.7k citations

Hit Papers

align trajectories

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.

On characterizing the variability properties of X-ray light curves from active galaxies

2003 679 citations S. Vaughan, P. Uttley et al. Monthly Notices of the Royal Astronomical Society profile →
Broad line emission from iron K- and L-shell transitions in the active galaxy 1H 0707-495

2009 375 citations A. C. Fabian, P. Uttley et al. profile →
Active galactic nuclei as scaled-up Galactic black holes

2006 374 citations I. M. McHardy, P. Uttley et al. profile →
False periodicities in quasar time-domain surveys

2016 178 citations S. Vaughan, P. Uttley et al. Monthly Notices of the Royal Astronomical Society profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P. Uttley United Kingdom	43	6.7k	3.0k	613	484	292	130	7.0k
Julian H. Krolik United States	56	10.0k 1.5×	3.4k 1.1×	457 0.7×	477 1.0×	404 1.4×	197	10.4k
G. Ponti Italy	34	4.6k 0.7×	1.8k 0.6×	489 0.8×	330 0.7×	195 0.7×	190	4.7k
K. Nandra United States	52	10.0k 1.5×	3.7k 1.2×	512 0.8×	274 0.6×	517 1.8×	239	10.4k
R. Sunyaev Russia	46	9.2k 1.4×	3.8k 1.3×	403 0.7×	989 2.0×	318 1.1×	436	9.6k
M. Guainazzi Spain	40	6.5k 1.0×	2.8k 0.9×	337 0.5×	367 0.8×	235 0.8×	201	6.6k
H. Falcke Netherlands	50	8.8k 1.3×	5.9k 1.9×	282 0.5×	321 0.7×	163 0.6×	326	9.3k
W. S. Pačiesas United States	41	7.9k 1.2×	2.6k 0.9×	204 0.3×	544 1.1×	57 0.2×	260	8.3k
N. Gehrels United States	46	8.1k 1.2×	2.7k 0.9×	154 0.3×	300 0.6×	133 0.5×	201	8.4k
I. M. McHardy United Kingdom	34	4.4k 0.7×	2.1k 0.7×	154 0.3×	119 0.2×	261 0.9×	150	4.6k
A. Merloni Germany	38	5.5k 0.8×	2.0k 0.7×	195 0.3×	166 0.3×	154 0.5×	147	5.8k

Countries citing papers authored by P. Uttley

Since Specialization

Citations

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

Fields of papers citing papers by P. Uttley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. Uttley

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

All Works

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20 of 20 papers shown

Uttley, P., et al.. (2025). Variable QPO lags and reduced coherence between the disc and corona in MAXI J1820+070. Monthly Notices of the Royal Astronomical Society. 542(1). 350–363.

Vaughan, S., et al.. (2025). Modelling variability power spectra of active galaxies from irregular time series. Monthly Notices of the Royal Astronomical Society. 539(2). 1775–1795. 1 indexed citations

Uttley, P., Matteo Bachetti, Arash Bahramian, et al.. (2025). Long-term variability of Cygnus X−1. IX. A spectral-timing comparison of Cygnus X−1 and MAXI J1820+070 in the hard state. Monthly Notices of the Royal Astronomical Society. 542(2). 982–997.

Uttley, P. & J. Malzac. (2024). Large and complex X-ray time lags from black hole accretion discs with compact inner coronae. Monthly Notices of the Royal Astronomical Society. 536(4). 3284–3307. 11 indexed citations

Lucchini, Matteo, Jingyi Wang, J. Homan, et al.. (2023). Variability as a Predictor for the Hard-to-soft State Transition in GX 339−4. The Astrophysical Journal. 958(2). 153–153. 6 indexed citations

Zdziarski, A. A., T. Belloni, P. Uttley, et al.. (2022). The X-ray spectral-timing contribution of the stellar wind in the hard state of Cyg X-1. Monthly Notices of the Royal Astronomical Society. 512(2). 2671–2685. 8 indexed citations

Markoff, Sera, M. T. Lucchini, Chiara Ceccobello, et al.. (2022). The prototype X-ray binary GX 339–4: using TeV γ-rays to assess LMXBs as Galactic cosmic ray accelerators. Monthly Notices of the Royal Astronomical Society. 510(4). 5187–5198. 5 indexed citations

Wang, Jingyi, Erin Kara, Matteo Lucchini, et al.. (2022). The NICER “Reverberation Machine”: A Systematic Study of Time Lags in Black Hole X-Ray Binaries. The Astrophysical Journal. 930(1). 18–18. 33 indexed citations

Vincentelli, F., P. Casella, D. M. Russell, et al.. (2021). Fast infrared variability from the black hole candidate MAXI J1535−571 and tight constraints on the modelling. Monthly Notices of the Royal Astronomical Society. 503(1). 614–624. 13 indexed citations

10.

Miniutti, G., K. D. Alexander, S. Bianchi, et al.. (2020). Quasi-Periodic Eruptions (QPEs) in GSN 069. 16062. 1 indexed citations

11.

Markoff, Sera, Tobias Beuchert, Matteo Lucchini, et al.. (2020). A new lepto-hadronic model applied to the first simultaneous multiwavelength data set for Cygnus X–1. Monthly Notices of the Royal Astronomical Society. 500(2). 2112–2126. 30 indexed citations

12.

Paice, John A., P. Gandhi, T. Shahbaz, et al.. (2019). A black hole X-ray binary at ∼100 Hz: multiwavelength timing of MAXI J1820+070 with HiPERCAM and NICER. Monthly Notices of the Royal Astronomical Society Letters. 490(1). L62–L66. 22 indexed citations

13.

Gardenier, D. W. & P. Uttley. (2018). A model-independent comparison of the variability of accreting neutron stars and black holes. Monthly Notices of the Royal Astronomical Society. 481(3). 3761–3781. 12 indexed citations

14.

Homan, J., P. Uttley, Keith C. Gendreau, et al.. (2018). Continuing NICER observations of the state transition in ASASSN-18ey/MAXI J1820+070. UvA-DARE (University of Amsterdam). 11823. 1. 1 indexed citations

15.

Ludlam, R. M., J. M. Mïller, Zaven Arzoumanian, et al.. (2018). Initial NICER observation of the new X-ray transient Swift J1858.6-0814. UvA-DARE (University of Amsterdam). 12158. 1.

16.

Homan, J., Abigail Stevens, D. Altamirano, et al.. (2018). MAXI J1820+070 continuing its rapid evolution toward the hard state. UvA-DARE (University of Amsterdam). 12068. 1. 2 indexed citations

17.

Gendreau, Keith C., Zaven Arzoumanian, C. B. Markwardt, et al.. (2017). Initial NICER observations of a broadened iron line and QPOs in MAXI J1535a571.. UvA-DARE (University of Amsterdam). 10768. 1. 1 indexed citations

18.

Lira, P., et al.. (2015). Long-term monitoring of the archetype Seyfert galaxy MCG-6-30-15: X-ray, optical and near-IR variability of the corona, disc and torus. Monthly Notices of the Royal Astronomical Society. 454(1). 368–379. 23 indexed citations

19.

McHardy, I. M., P. Uttley, R. Taylor, & I. E. Papadakis. (2006). The AGN/X-Ray Binary Connection. ASPC. 360. 85.

20.

Uttley, P.. (2006). The Relationship Between Optical and X-ray Variability in Seyfert Galaxies. ASPC. 360. 101. 3 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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