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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 79 3078 2922 266 257 214 27723

Chris Simpson publications per year

The chart shows the history of publications by Chris Simpson between 1993 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Chris Simpson published across 33 years, from 1993 to 2025, averaging 7.2 papers a year. Output peaked at 18 publications in 2007. 15 of the 239 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1993 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2007. 1993: 1 publication 1994: 3 publications 1995: 1 publication 1996: 7 publications 1997: 2 publications 1998: 7 publications 1999: 7 publications 2000: 11 publications 2001: 3 publications 2002: 3 publications 2003: 2 publications 2004: 9 publications 2005: 13 publications 2006: 16 publications 2007: 18 publications 2008: 13 publications 2009: 8 publications 2010: 9 publications 2011: 8 publications 2012: 11 publications 2013: 10 publications 2014: 9 publications 2015: 12 publications 2016: 7 publications 2017: 9 publications 2018: 7 publications 2019: 1 publication 2020: 3 publications 2021: 3 publications 2022: 2 publications 2023: 9 publications 2024: 12 publications 2025: 3 publications
1993 2025

239 publications in total across all disciplines

View publications per year as a table
Chris Simpson: publications per year, 1993 to 2025
Year Publications
1993 1
1994 3
1995 1
1996 7
1997 2
1998 7
1999 7
2000 11
2001 3
2002 3
2003 2
2004 9
2005 13
2006 16
2007 18
2008 13
2009 8
2010 9
2011 8
2012 11
2013 10
2014 9
2015 12
2016 7
2017 9
2018 7
2019 1
2020 3
2021 3
2022 2
2023 9
2024 12
2025 3
Total 239
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Chris Simpson publications per year - data summary

  • Chris Simpson, a Physics scholar from Liverpool John Moores University, has 239 publications recorded across 33 years, from 1993 to 2025.
  • The oldest publication on record dates to 1993 and the most recent to 2025.
  • The most productive year is 2007, with 18 publications.
  • The least productive years with any output are 1993, 1995 and 2019, with 1 publication each.
  • The rate of publication averages 7.2 papers per year over the whole span, or 7.2 per year counting only the 33 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 29 publications, 12% of the career total.
  • Split into equal eras - 1993-2003: 47 publications (4.3 per year); 2004-2014: 124 publications (11.3 per year); 2015-2025: 68 publications (6.2 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Chris Simpson publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Chris Simpson sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 70 bars. Horizontal axis: publications, 103–122 to 1,469+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 323–342 publications. The last bar groups every scientist with 1,469 publications or more. The highlighted bar, 203–222 publications, is where this scientist sits. 103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103–122 publications 1,469+

This scientist: 214 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

View publications distribution as a table
Number of Physics scientists by publication count, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
Publications Scientists This scientist
103–122 7
123–142 10
143–162 31
163–182 35
183–202 53
203–222 81 214
223–242 85
243–262 112
263–282 114
283–302 126
303–322 136
323–342 162
343–362 155
363–382 156
383–402 134
403–422 145
423–442 147
443–462 131
463–482 131
483–502 116
503–522 106
523–542 103
543–562 87
563–582 84
583–602 94
603–622 70
623–642 76
643–662 60
663–682 54
683–702 60
703–722 48
723–742 64
743–762 48
763–782 37
783–802 43
803–822 34
823–842 36
843–862 32
863–882 32
883–902 31
903–922 25
923–942 15
943–962 24
963–982 13
983–1,002 21
1,003–1,022 21
1,023–1,042 16
1,043–1,062 9
1,063–1,082 19
1,083–1,102 11
1,103–1,122 17
1,123–1,142 11
1,143–1,162 7
1,163–1,182 4
1,183–1,202 10
1,203–1,222 8
1,223–1,242 16
1,243–1,262 4
1,263–1,282 10
1,283–1,302 5
1,303–1,322 7
1,323–1,342 4
1,343–1,362 8
1,363–1,382 6
1,383–1,402 7
1,403–1,422 3
1,423–1,442 4
1,443–1,462 4
1,463–1,468 3
1,469+ 100
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Chris Simpson publication distribution in Physics in 2026 - data summary

  • The chart plots the publication count of all 3,678 Physics scientists ranked by Research.com in 2026, grouped into 70 ranges running from 103–122 to 1,469+ publications.
  • Chris Simpson, a Physics scholar from Liverpool John Moores University, records 214 publications - the 5th percentile of the discipline.
  • 5% of ranked Physics scientists score the same or lower than Chris Simpson, and about 95% score higher.
  • The median of the discipline falls in the 463–482 publications range, and Chris Simpson ranks below the median.
  • The most crowded range is 323–342 publications, holding 162 scientists (4% of the field).
  • 49% of the field sits in the lowest quarter of the value range (up to 443–462 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 1,469 publications or more, 100 scientists in all (3% of the field).

Chris Simpson D-index placement in Physics in 2026

The chart shows the D-index (discipline H-index) distribution of Physics scientists ranked by Research.com in 2026. The highlighted bar marks where Chris Simpson sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 59 bars. Horizontal axis: D-Index, 70–71 to 185+. Vertical axis: number of scientists, 0 to 167. Most scientists, 167, have 80–81 D-Index. The last bar groups every scientist with 185 D-Index or more. The highlighted bar, 78–79 D-Index, is where this scientist sits. 70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70–71 D-Index 185+

This scientist: 79 D-Index — 17th percentile

17% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

View D-Index distribution as a table
Number of Physics scientists by D-index, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
D-Index Scientists This scientist
70–71 76
72–73 110
74–75 143
76–77 153
78–79 144 79
80–81 167
82–83 167
84–85 166
86–87 132
88–89 155
90–91 134
92–93 137
94–95 102
96–97 112
98–99 110
100–101 116
102–103 97
104–105 103
106–107 87
108–109 90
110–111 67
112–113 78
114–115 75
116–117 67
118–119 69
120–121 60
122–123 59
124–125 53
126–127 42
128–129 41
130–131 33
132–133 32
134–135 45
136–137 19
138–139 24
140–141 28
142–143 31
144–145 22
146–147 20
148–149 12
150–151 16
152–153 24
154–155 23
156–157 15
158–159 15
160–161 11
162–163 17
164–165 12
166–167 11
168–169 9
170–171 9
172–173 11
174–175 4
176–177 8
178–179 5
180–181 3
182–183 4
184 4
185+ 99
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Chris Simpson D-index placement in Physics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,678 Physics scientists ranked by Research.com in 2026, grouped into 59 ranges running from 70–71 to 185+ D-Index.
  • Chris Simpson, a Physics scholar from Liverpool John Moores University, records 79 D-Index - the 17th percentile of the discipline.
  • 17% of ranked Physics scientists score the same or lower than Chris Simpson, and about 83% score higher.
  • The median of the discipline falls in the 96–97 D-Index range, and Chris Simpson ranks below the median.
  • The most crowded range is 80–81 D-Index, holding 167 scientists (5% of the field).
  • 55% of the field sits in the lowest quarter of the value range (up to 98–99 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 185 D-Index or more, 99 scientists in all (3% of the field).

Overview

Chris Simpson is affiliated with Liverpool John Moores University in the United Kingdom. Their research primarily spans the field of Physics and Astronomy, with a focus on Astronomy and Astrophysics, Instrumentation, and Ecology. Their work also touches on Global and Planetary Change as well as Nuclear and High Energy Physics.

Simpson's scholarly output includes 71 publications in Physics and Astronomy, with 53 specifically in Astronomy and Astrophysics and a significant contribution to Instrumentation with 11 papers. Other subfields include Ecology, Global and Planetary Change, and Nuclear and High Energy Physics.

The scientist's main research topics encompass stellar, planetary, and galactic studies, astronomy and astrophysical research, gamma-ray bursts and supernovae, astro and planetary science, astrophysics and star formation studies, galaxies' formation, evolution, and phenomena, as well as planetary science and exploration.

Frequent coauthors collaborating with Chris Simpson include V. M. Kalari, Roque Ruiz-Carmona, Kathleen Labrie, Christian R. Hayes, and Alan W. McConnachie.

Chris Simpson has published extensively in the following venues:

  • arXiv (Cornell University)
  • Monthly Notices of the Royal Astronomical Society
  • The Astrophysical Journal
  • Research Notes of the AAS
  • The Astronomical Journal

Their recent papers include:

  • "An ALMA survey of the SCUBA-2 CLS UDS field: physical properties of 707 sub-millimetre galaxies" (2020) in Monthly Notices of the Royal Astronomical Society
  • "An Indo-Pacific coral spawning database" (2021) in Scientific Data
  • "An ALMA survey of the S2CLS UDS field: optically invisible submillimetre galaxies" (2021) in Monthly Notices of the Royal Astronomical Society
  • "DRAGONS-A Quick Overview" (2023) in Research Notes of the AAS
  • "The e-MERGE Survey (e-MERLIN Galaxy Evolution Survey): overview and survey description" (2020) in Monthly Notices of the Royal Astronomical Society

Best Publications

  • The UKIRT Infrared Deep Sky Survey (UKIDSS)

    Andy Lawrence;S. J. Warren;Omar Almaini;A. C. Edge

  • A luminous quasar at a redshift of z = 7.085

    Daniel J. Mortlock;Stephen J. Warren;Bram P. Venemans;Mitesh Patel

  • Statistics of 207 Lya Emitters at a Redshift Near 7: Constraints on Reionization and Galaxy Formation Models

    Masami Ouchi;Kazuhiro Shimasaku;Hisanori Furusawa;Tomoki Saito

  • The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lya Emitters from z=3.1 to 5.7 in the 1 deg^2 Field: Luminosity Functions and AGN

    Masami Ouchi;Kazuhiro Shimasaku;Masayuki Akiyama;Chris Simpson

  • STATISTICS OF 207 Lyα EMITTERS AT A REDSHIFT NEAR 7: CONSTRAINTS ON REIONIZATION AND GALAXY FORMATION MODELS*

    Masami Ouchi;Kazuhiro Shimasaku;Hisanori Furusawa;Tomoki Saito

  • The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lyα Emitters from z = 3.1 to 5.7 in the 1 deg2 Field: Luminosity Functions and AGN*

    Masami Ouchi;Kazuhiro Shimasaku;Masayuki Akiyama;Chris Simpson

  • The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- II. Submillimetre maps, catalogue and number counts

    K. Coppin;E.L. Chapin;A.M.J. Mortier;S.E. Scott

  • The SCUBA Half-Degree Extragalactic Survey – II. Submillimetre maps, catalogue and number counts

    K. Coppin;E. L. Chapin;E. L. Chapin;A. M. J. Mortier;S. E. Scott

  • The Detection of a Population of Submillimeter-Bright, Strongly Lensed Galaxies

    Mattia Negrello;R. Hopwood;G. De Zotti;A. Cooray

  • The luminosity dependence of the Type 1 AGN fraction

    Chris Simpson

  • The SCUBA HAlf Degree Extragalactic Survey - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies

    R. J. Ivison;R. J. Ivison;T. R. Greve;James Dunlop;John Peacock

  • The Subaru/XMM-Newton Deep Survey (SXDS). II. Optical Imaging and Photometric Catalogs*

    Hisanori Furusawa;George Kosugi;Masayuki Akiyama;Tadafumi Takata

  • CANDELS Multiwavelength catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-Deep Survey Field

    Audrey Galametz;Andrea Grazian;Adriano Fontana;Henry C. Ferguson

  • CANDELS Multiwavelength Catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-deep Survey Field

    Audrey Galametz;Andrea Grazian;Adriano Fontana;Henry C. Ferguson

  • The VISTA deep extragalactic observations (VIDEO) survey

    Matt J. Jarvis;Matt J. Jarvis;D. G. Bonfield;Victoria Bruce;J. E. Geach

  • The UKIRT Infrared Deep Sky Survey Second Data Release

    S. J. Warren;N. C. Hambly;S. Dye;O. Almaini

  • Black hole mass estimates and emission-line properties of a sample of redshift z > 6.5 quasars

    Gisella De Rosa;Bram P. Venemans;Roberto Decarli;Mario Gennaro

  • The luminosity dependence of the type 1 active galactic nucleus fraction

    Chris Simpson

  • HST and VLA Observations of Seyfert 2 Galaxies: The Relationship between Radio Ejecta and the Narrow Line Region

    Heino Falcke;Andrew S. Wilson;Chris Simpson

  • The Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6

    M. Ouchi;K. Shimasaku;M. Akiyama;K. Sekiguchi

Frequent Co-Authors

Rob Ivison
Rob Ivison European Southern Observatory
James S. Dunlop
James S. Dunlop University of Edinburgh
Omar Almaini
Omar Almaini University of Nottingham
Steve Rawlings
Steve Rawlings University of Oxford
Ian Smail
Ian Smail Durham University
Ross J. McLure
Ross J. McLure University of Edinburgh
Matt J. Jarvis
Matt J. Jarvis University of Oxford
Masayuki Akiyama
Masayuki Akiyama Tohoku University
M. G. Watson
M. G. Watson University of Leicester
Michele Cirasuolo
Michele Cirasuolo European Southern Observatory

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