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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 106 1346 1276 704 656 432 34707

Joseph F. Hennawi publications per year

The chart shows the history of publications by Joseph F. Hennawi between 2001 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Joseph F. Hennawi published across 25 years, from 2001 to 2025, averaging 20.1 papers a year. Output peaked at 39 publications in 2019. 59 of the 503 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2001 to 2025. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2019. 2001: 2 publications 2002: 6 publications 2003: 2 publications 2004: 16 publications 2005: 7 publications 2006: 9 publications 2007: 18 publications 2008: 11 publications 2009: 10 publications 2010: 20 publications 2011: 16 publications 2012: 17 publications 2013: 23 publications 2014: 15 publications 2015: 18 publications 2016: 27 publications 2017: 37 publications 2018: 34 publications 2019: 39 publications 2020: 30 publications 2021: 36 publications 2022: 15 publications 2023: 36 publications 2024: 33 publications 2025: 26 publications
2001 2025

503 publications in total across all disciplines

View publications per year as a table
Joseph F. Hennawi: publications per year, 2001 to 2025
Year Publications
2001 2
2002 6
2003 2
2004 16
2005 7
2006 9
2007 18
2008 11
2009 10
2010 20
2011 16
2012 17
2013 23
2014 15
2015 18
2016 27
2017 37
2018 34
2019 39
2020 30
2021 36
2022 15
2023 36
2024 33
2025 26
Total 503
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Joseph F. Hennawi publications per year - data summary

  • Joseph F. Hennawi, a Physics scholar from University of California, Santa Barbara, has 503 publications recorded across 25 years, from 2001 to 2025.
  • The oldest publication on record dates to 2001 and the most recent to 2025.
  • The most productive year is 2019, with 39 publications.
  • The least productive years with any output are 2001 and 2003, with 2 publications each.
  • The rate of publication averages 20.1 papers per year over the whole span, or 20.1 per year counting only the 25 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 146 publications, 29% of the career total.
  • Split into equal eras - 2001-2009: 81 publications (9.0 per year); 2010-2018: 207 publications (23.0 per year); 2019-2025: 215 publications (30.7 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Joseph F. Hennawi 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 Joseph F. Hennawi 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, 423–442 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: 432 publications — 44th percentile

44% 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
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
423–442 147 432
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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Joseph F. Hennawi 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.
  • Joseph F. Hennawi, a Physics scholar from University of California, Santa Barbara, records 432 publications - the 44th percentile of the discipline.
  • 44% of ranked Physics scientists score the same or lower than Joseph F. Hennawi, and about 56% score higher.
  • The median of the discipline falls in the 463–482 publications range, and Joseph F. Hennawi 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).

Joseph F. Hennawi 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 Joseph F. Hennawi 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, 106–107 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: 106 D-Index — 65th percentile

65% 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
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 87 106
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
Download as CSV

Joseph F. Hennawi 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.
  • Joseph F. Hennawi, a Physics scholar from University of California, Santa Barbara, records 106 D-Index - the 65th percentile of the discipline.
  • 65% of ranked Physics scientists score the same or lower than Joseph F. Hennawi, and about 35% score higher.
  • The median of the discipline falls in the 96–97 D-Index range, and Joseph F. Hennawi ranks above 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

Joseph F. Hennawi is affiliated with the University of California, Santa Barbara in the United States. Their primary research area is in Physics and Astronomy, with a significant focus on Astronomy and Astrophysics. Their subfields of study include Instrumentation, Nuclear and High Energy Physics, Statistical and Nonlinear Physics, and Applied Mathematics.

The main topics of Joseph F. Hennawi's research encompass:

  • Galaxies: Formation, Evolution, Phenomena
  • Astronomy and Astrophysical Research
  • Gamma-ray bursts and supernovae
  • Astrophysical Phenomena and Observations
  • Astrophysics and Cosmic Phenomena
  • Cosmology and Gravitation Theories
  • Scientific Research and Discoveries

The scientist has published extensively across several frequent venues, including:

  • arXiv (Cornell University)
  • Monthly Notices of the Royal Astronomical Society
  • The Astrophysical Journal
  • The Astrophysical Journal Letters
  • The Astrophysical Journal Supplement Series

Notable recent papers by Joseph F. Hennawi include:

  • "PypeIt: The Python Spectroscopic Data Reduction Pipeline" (2020), published in The Journal of Open Source Software
  • "Hydrogen reionization ends by z = 5.3: Lyman-α optical depth measured by the XQR-30 sample" (2022), published in Monthly Notices of the Royal Astronomical Society
  • "Probing Early Supermassive Black Hole Growth and Quasar Evolution with Near-infrared Spectroscopy of 37 Reionization-era Quasars at 6.3 ≤ z ≤ 7.64" (2021), published in The Astrophysical Journal
  • "pypeit/PypeIt: Release 1.0.0" (2020), published on arXiv (Cornell University)
  • "The X-SHOOTER/ALMA Sample of Quasars in the Epoch of Reionization. I. NIR Spectral Modeling, Iron Enrichment, and Broad Emission Line Properties" (2020), published in The Astrophysical Journal

Joseph F. Hennawi's research collaborations are reflected in frequent co-authorship with several scientists, including:

  • Frederick B. Davies
  • Feige Wang
  • Anna-Christina Eilers
  • Jinyi Yang
  • Eduardo Bañados

Best Publications

  • SDSS-III: MASSIVE SPECTROSCOPIC SURVEYS OF THE DISTANT UNIVERSE, THE MILKY WAY, AND EXTRA-SOLAR PLANETARY SYSTEMS

    Daniel J. Eisenstein;Daniel J. Eisenstein;David H. Weinberg;Eric Agol;Hiroaki Aihara

  • An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5

    Eduardo Bañados;Bram P. Venemans;Chiara Mazzucchelli;Emanuele P. Farina

  • Near - infrared photometry and spectroscopy of L and T dwarfs: The Effects of temperature, clouds, and gravity

    Gillian R. Knapp;Sandy K. Leggett;Xiaohui Fan;Mark S. Marley

  • Clustering of High Redshift ($z\ge 2.9$) Quasars from the Sloan Digital Sky Survey

    Yue Shen;Michael A. Strauss;Masamune Oguri;Joseph F. Hennawi

  • A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey III: Discovery of Five Additional Quasars

    Xiaohui Fan;Joseph F. Hennawi;Gordon T. Richards;Michael A. Strauss

  • A Survey of z > 5.7 Quasars in the Sloan Digital Sky Survey. IV. Discovery of Seven Additional Quasars* **

    Xiaohui Fan;Xiaohui Fan;Michael A. Strauss;Gordon T. Richards;Gordon T. Richards;Joseph F. Hennawi

  • The Sloan Digital Sky Survey quasar catalog: ninth data release

    Isabelle Pâris;Patrick Petitjean;Eric Aubourg;Stephen Bailey

  • The SDSS-III Baryon Oscillation Spectroscopic Survey: Quasar Target Selection for Data Release Nine

    Nicholas P. Ross;Adam D. Myers;Erin S. Sheldon;Christophe Yèche

  • Clustering of High Redshift (Z >= 2.9) Quasars from the Sloan Digital Sky Survey

    Yue Shen;Michael Abram Strauss;Masamune Oguri;Masamune Oguri;Joseph F. Hennawi

  • Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales

    Joseph F. Hennawi;Michael A. Strauss;Masamune Oguri;Naohisa Inada

  • A cosmic web filament revealed in Lyman-α emission around a luminous high-redshift quasar

    Sebastiano Cantalupo;Fabrizio Arrigoni-Battaia;J. Xavier Prochaska;J. Xavier Prochaska;Joseph F. Hennawi

  • A Luminous Quasar at Redshift 7.642

    Feige Wang;Jinyi Yang;Xiaohui Fan;Joseph F. Hennawi;Joseph F. Hennawi

  • The Sloan Digital Sky Survey quasar catalog: ninth data release

    I. Pĝris;I. Pĝris;P. Petitjean;É Aubourg;S. Bailey

  • Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales

    Joseph F. Hennawi;Joseph F. Hennawi;Michael Abram Strauss;Masamune Oguri;Masamune Oguri;Naohisa Inada

  • Physical Properties of 15 Quasars at z ≳ 6.5

    C. Mazzucchelli;Eduardo Bañados;Eduardo Bañados;B. P. Venemans;R. Decarli

  • The clustering of intermediate redshift quasars as measured by the Baryon Oscillation Spectroscopic Survey

    Martin White;Adam D. Myers;Nicholas P. Ross;David J. Schlegel

  • THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY: QUASAR TARGET SELECTION FOR DATA RELEASE NINE

    Nicholas P. Ross;Nicholas P. Ross;Adam D. Myers;Adam D. Myers;Erin S. Sheldon;Christophe Yèche

  • Quantitative constraints on the reionization history from the igm damping wing signature in two quasars at z > 7

    Frederick B. Davies;Joseph F. Hennawi;Joseph F. Hennawi;Eduardo Bañados;Zarija Lukić

  • Characterizing the cluster lens population

    Joseph F. Hennawi;Joseph F. Hennawi;Neal Krishnakant Dalal;Paul Bode;Jeremiah P. Ostriker

  • Physical properties of 15 quasars at $z\gtrsim 6.5$

    C. Mazzucchelli;E. Bañados;B. P. Venemans;R. Decarli

Frequent Co-Authors

J. Xavier Prochaska
J. Xavier Prochaska University of California, Santa Cruz
Xiaohui Fan
Xiaohui Fan University of Arizona
Donald P. Schneider
Donald P. Schneider Pennsylvania State University
Masamune Oguri
Masamune Oguri Kavli Institute for the Physics and Mathematics of the Universe
Fabian Walter
Fabian Walter Max Planck Society
Adam D. Myers
Adam D. Myers University of Wyoming
Bram Venemans
Bram Venemans Max Planck Society
Michael A. Strauss
Michael A. Strauss University of Oklahoma
Gordon T. Richards
Gordon T. Richards Drexel University
David J. Schlegel
David J. Schlegel Lawrence Berkeley National Laboratory

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