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D-Index & Metrics

Physics

D-Index
101
Citations
41790
World Ranking
1584
National Ranking
839

Alex Dalgarno 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 Alex Dalgarno sits on this spectrum.

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 publications 1,469+

This scientist: 736 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Alex Dalgarno 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 Alex Dalgarno sits on this spectrum.

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 D-Index 185+

This scientist: 101 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2013 - Benjamin Franklin Medal, Franklin Institute
  • 2002 - Hughes Medal, Royal Society of London for his contributions to the theory of atomic and molecular process, and in particular its application to astrophysics. His studies of energy depositions provide the key to understanding emissions from terrestrial aurorae, planetary atmospheres and comets
  • 2001 - Member of the National Academy of Sciences
  • 1980 - Davisson–Germer Prize in Atomic or Surface Physics, American Physical Society
  • 1980 - Fellow of American Physical Society (APS)
  • 1974 - Fellow of American Geophysical Union (AGU)

Overview

Alex Dalgarno was affiliated with Harvard University in the United States during their career in academic research. Their work primarily focused on the fields of physics and astronomy, with a particular emphasis on astronomy and astrophysics.

The main topics covered in Dalgarno's research included astrophysics and star formation studies, gamma-ray bursts and supernovae, and stellar, planetary, and galactic studies.

  • Astrophysics and Star Formation Studies
  • Gamma-ray bursts and supernovae
  • Stellar, planetary, and galactic studies

Dalgarno frequently collaborated with other researchers, including S. Lepp and P. C. Stancil.

  • S. Lepp
  • P. C. Stancil

Throughout their career, Dalgarno was recognized with several notable awards. These included the Benjamin Franklin Medal from the Franklin Institute in 2013 and the Hughes Medal from the Royal Society of London in 2002, the latter awarded for contributions to the theory of atomic and molecular processes with applications to astrophysics. Their work helped advance understanding of emissions from terrestrial aurorae, planetary atmospheres, and comets.

Dalgarno was also named a Member of the National Academy of Sciences in 2001. Earlier distinctions included receiving the Davisson-Germer Prize in Atomic or Surface Physics from the American Physical Society in 1980, and they were a fellow of both the American Physical Society and the American Geophysical Union, inducted in 1980 and 1974 respectively.

Best Publications

  • The Theory of Scattering by a Rigid Rotator

    A. M. Arthurs;Alexander Dalgarno

  • Magnetohydrodynamic Shock Waves in Molecular Clouds

    B.T. Draine;W.G. Roberge;A. Dalgarno

  • The exact calculation of long-range forces between atoms by perturbation theory

    Alexander Dalgarno;J. T. Lewis

  • Extreme ultraviolet observations from Voyager 1 encounter with Jupiter

    A. L. Broadfoot;M. J. S. Belton;P. Z. Takacs;B. R. Sandel

  • A KInetic Database for Astrochemistry (KIDA)

    V. Wakelam;V. Wakelam;E. Herbst;E. Herbst;J. C Loison;J. C Loison;I. W. M. Smith

  • Dispersion coefficients for alkali-metal dimers.

    M. Marinescu;H. R. Sadeghpour;A. Dalgarno

  • The refractive indices and Verdet constants of the inert gases

    A. Dalgarno;A. E. Kingston

  • Models of interstellar clouds. I. The Zeta Ophiuchi cloud

    J.H. Black;A. Dalgarno

  • Atomic and molecular processes in the early Universe

    S Lepp;P C Stancil;A Dalgarno

  • Molecule formation in the interstellar gas

    A Dalgarno;J H Black

  • Variational calculations of dispersion coefficients for interactions among H, He, and Li atoms.

    Zong-Chao Yan;James F. Babb;A. Dalgarno;G. W. F. Drake

  • Electron Energy Deposition in a Gas Mixture of Atomic and Molecular Hydrogen and Helium

    A. Dalgarno;Min Yan;Weihong Liu;Weihong Liu

  • Cosmic-ray-induced photodissociation and photoionization rates of interstellar molecules

    R. Gredel;S. Lepp;A. Dalgarno;E. Herbst

  • Chemistry at Ultracold Temperatures

    N. Balakrishnan;A. Dalgarno

  • Thermal Scattering of Atoms by Homonuclear Diatomic Molecules

    R. B. Bernstein;Alexander Dalgarno;Harrie Stewart Wilson Massey;Ian Colin Percival

  • The Deuterium Chemistry of the Early Universe

    P. C. Stancil;S. Lepp;A. Dalgarno

  • Fast molecular shocks. I - Reformation of molecules behind a dissociative shock

    David A. Neufeld;A. Dalgarno

  • Photoionization Cross Sections of He and H2

    M. Yan;H. R. Sadeghpour;A. Dalgarno

  • Deuterium fractionation mechanisms in interstellar clouds

    A. Dalgarno;S. Lepp

  • Ultracold atom-ion collisions

    R. Côté;A. Dalgarno

Frequent Co-Authors

John H. Black
John H. Black Chalmers University of Technology
Michael Oppenheimer
Michael Oppenheimer Princeton University
David A. Neufeld
David A. Neufeld Johns Hopkins University
Robert J. Buenker
Robert J. Buenker University of Wuppertal
Patrick Thaddeus
Patrick Thaddeus Harvard University
David G. Koch
David G. Koch Ames Research Center
E. F. van Dishoeck
E. F. van Dishoeck Leiden University
Gary J. Ferland
Gary J. Ferland University of Kentucky
Giovanni G. Fazio
Giovanni G. Fazio Harvard University
David L. Cooper
David L. Cooper University of Liverpool

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