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David J. Helfand

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 81 2910 2763 1417 1319 316 27833

David J. Helfand publications per year

The chart shows the history of publications by David J. Helfand between 1973 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. David J. Helfand published across 54 years, from 1973 to 2026, averaging 6.4 papers a year. Output peaked at 18 publications in 1983. 1 of the 343 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1973 to 2026. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 1983. 1973: 1 publication 1974: 0 publications 1975: 1 publication 1976: 0 publications 1977: 4 publications 1978: 1 publication 1979: 6 publications 1980: 11 publications 1981: 13 publications 1982: 13 publications 1983: 18 publications 1984: 18 publications 1985: 14 publications 1986: 7 publications 1987: 11 publications 1988: 7 publications 1989: 7 publications 1990: 3 publications 1991: 17 publications 1992: 5 publications 1993: 6 publications 1994: 6 publications 1995: 9 publications 1996: 12 publications 1997: 8 publications 1998: 9 publications 1999: 5 publications 2000: 2 publications 2001: 11 publications 2002: 10 publications 2003: 8 publications 2004: 13 publications 2005: 10 publications 2006: 12 publications 2007: 15 publications 2008: 4 publications 2009: 8 publications 2010: 4 publications 2011: 3 publications 2012: 1 publication 2013: 2 publications 2014: 1 publication 2015: 1 publication 2016: 18 publications 2017: 0 publications 2018: 0 publications 2019: 1 publication 2020: 1 publication 2021: 0 publications 2022: 0 publications 2023: 4 publications 2024: 1 publication 2025: 0 publications 2026: 1 publication
1973 2026

343 publications in total across all disciplines

View publications per year as a table
David J. Helfand: publications per year, 1973 to 2026
Year Publications
1973 1
1974 0
1975 1
1976 0
1977 4
1978 1
1979 6
1980 11
1981 13
1982 13
1983 18
1984 18
1985 14
1986 7
1987 11
1988 7
1989 7
1990 3
1991 17
1992 5
1993 6
1994 6
1995 9
1996 12
1997 8
1998 9
1999 5
2000 2
2001 11
2002 10
2003 8
2004 13
2005 10
2006 12
2007 15
2008 4
2009 8
2010 4
2011 3
2012 1
2013 2
2014 1
2015 1
2016 18
2017 0
2018 0
2019 1
2020 1
2021 0
2022 0
2023 4
2024 1
2025 0
2026 1
Total 343
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David J. Helfand 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 David J. Helfand 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, 303–322 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: 316 publications — 20th percentile

20% 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
303–322 136 316
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
Download as CSV

David J. Helfand 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 David J. Helfand 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, 80–81 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: 81 D-Index — 22nd percentile

22% 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 81
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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Research.com Recognitions

  • 1983 - Fellow of Alfred P. Sloan Foundation

Overview

David J. Helfand is affiliated with Columbia University in the United States. Their research spans several fields, primarily focusing on Physics and Astronomy, Earth and Planetary Sciences, and Environmental Science.

Their work is distributed across multiple subfields such as Astronomy and Astrophysics, Nuclear and High Energy Physics, Ecology, Atmospheric Science, and Paleontology. This multidisciplinary approach reflects a broad scope of scientific inquiry into cosmic and terrestrial phenomena.

Helfand's research topics highlight:

  • Astrophysics and Cosmic Phenomena
  • Galaxies: Formation, Evolution, Phenomena
  • Radio Astronomy Observations and Technology
  • Isotope Analysis in Ecology
  • Geology and Paleoclimatology Research
  • Paleontology and Stratigraphy of Fossils

There is one recorded recent paper authored in 2020 titled Erratum: "A New, Deep JVLA Radio Survey of M33", published in The Astrophysical Journal Supplement Series. This indicates engagement with astronomical survey data and the radio observation of galaxies.

The scientist has collaborated with multiple frequent co-authors, including:

  • R. L. White
  • Knox S. Long
  • R. H. Becker
  • William P. Blair
  • P. F. Winkler

The primary venue for Helfand's publications is The Astrophysical Journal Supplement Series, underscoring a focus on astrophysical research and related scientific communication channels.

David J. Helfand was honored as a Fellow of the Alfred P. Sloan Foundation in 1983, reflecting a recognized standing within the scientific community during their active career period.

Best Publications

  • The FIRST Survey: Faint Images of the Radio Sky at twenty centimeters

    Robert H. Becker;Richard L. White;David J. Helfand

  • The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission

    Fiona A. Harrison;William W. Craig;Finn E. Christensen;Charles J. Hailey

  • A Catalog of 1.4 GHz Radio Sources from the FIRST Survey

    Richard L. White;Robert H. Becker;David J. Helfand;Michael D. Gregg

  • The Einstein /HEAO 2/ X-ray Observatory

    R. Giacconi;G. Branduardi;U. Briel;A. Epstein

  • Exploring the Optical Transient Sky with the Palomar Transient Factory

    Arne Rau;Shrinivas R. Kulkarni;Nicholas M. Law;Joshua S. Bloom

  • Transient pulsed radio emission from a magnetar

    Fernando Camilo;Scott M. Ransom;Jules P. Halpern;John Reynolds

  • Vela pulsar and its synchrotron nebula

    D. J. Helfand;E. V. Gotthelf;J. P. Halpern

  • THE LAST OF FIRST: THE FINAL CATALOG AND SOURCE IDENTIFICATIONS

    David J. Helfand;David J. Helfand;Richard L. White;Robert H. Becker;Robert H. Becker

  • MAGPIS: A Multi-Array Galactic Plane Imaging Survey

    David J. Helfand;Robert H. Becker;Robert H. Becker;Richard L. White;Adam Fallon

  • A 5 GHz VLA survey of the galactic plane

    Robert H. Becker;Richard L. White;David J. Helfand;S. Zoonematkermani

  • THE FIRST BRIGHT QUASAR SURVEY. II. 60 NIGHTS AND 1200 SPECTRA LATER

    Richard L. White;Richard L. White;Robert H. Becker;Robert H. Becker;Robert H. Becker;Michael D. Gregg;Michael D. Gregg;Sally A. Laurent-Muehleisen;Sally A. Laurent-Muehleisen;Sally A. Laurent-Muehleisen

  • A near-infrared spectral template for quasars

    Eilat Glikman;David J. Helfand;Richard L. White

  • The Origin and Evolution of Neutron Stars

    D. J. Helfand;J.-H. Huang

  • SIGNALS FROM THE NOISE: IMAGE STACKING FOR QUASARS IN THE FIRST SURVEY

    Richard L. White;David J. Helfand;Robert H. Becker;Robert H. Becker;Eilat Glikman;Eilat Glikman

  • Signals from the Noise: Image Stacking for Quasars in the FIRST Survey

    Richard L. White;David J. Helfand;Robert H. Becker;Eilat Glikman

  • Supernova remnants in the Magellanic Clouds. [FORMAT HHMM+DD.d]

    D. S. Mathewson;V. L. Ford;M. A. Dopita;I. R. Tuohy

  • Classification of IRAS-selected X-Ray Galaxies in the ROSAT All-Sky Survey

    Edward C. Moran;Jules P. Halpern;David J. Helfand

  • X-Rays from NGC 3256: High-Energy Emission in Starburst Galaxies and Their Contribution to the Cosmic X-Ray Background

    Edward C. Moran;Edward C. Moran;Matthew D. Lehnert;Matthew D. Lehnert;David J. Helfand;David J. Helfand

  • The FIRST Radio-loud Broad Absorption Line QSO and Evidence for a Hidden Population of Quasars

    Robert H. Becker;Robert H. Becker;Michael D. Gregg;Isobel M. Hook;Richard G. McMahon

  • The nuclear spectroscopic telescope array (NuSTAR) high-energy X-ray mission

    Kristin K. Madsen;Fiona A. Harrison;Hongjun An;Steven E. Boggs

Frequent Co-Authors

Robert H. Becker
Robert H. Becker University of California, Davis
Richard L. White
Richard L. White Space Telescope Science Institute
Eric V. Gotthelf
Eric V. Gotthelf Columbia University
Mark Lacy
Mark Lacy National Radio Astronomy Observatory
John P. Hughes
John P. Hughes Rutgers, The State University of New Jersey
Richard G. McMahon
Richard G. McMahon University of Cambridge
Fernando Camilo
Fernando Camilo South African Radio Astronomy Observatory
Fiona A. Harrison
Fiona A. Harrison California Institute of Technology
Patrick Slane
Patrick Slane Harvard University
Scott M. Ransom
Scott M. Ransom National Radio Astronomy Observatory

External Links

Wikipedia of David J. Helfand Personal website of David J. Helfand

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Publications: 347

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Publications: 260

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Publications: 227

Donald P. Schneider

Donald P. Schneider

Pennsylvania State University

Publications: 224

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Shrinivas R. Kulkarni

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Publications: 207

Gordon T. Richards

Gordon T. Richards

Drexel University

Publications: 179

W. N. Brandt

W. N. Brandt

Pennsylvania State University

Publications: 159

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Poshak Gandhi

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Publications: 159

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Finn Erland Christensen

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Publications: 155

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Avishay Gal-Yam

Weizmann Institute of Science

Publications: 151

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Matt J. Jarvis

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Publications: 149

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Mansi M. Kasliwal

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Publications: 149

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Eran O. Ofek

Weizmann Institute of Science

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