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Andrzej Udalski

Andrzej Udalski

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Physics
Poland
2026

D-Index & Metrics

Physics

D-Index
119
Citations
50332
World Ranking
849
National Ranking
2

Andrzej Udalski 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 Andrzej Udalski 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: 1,421 publications — 97th percentile

97% of scientists in this discipline score the same or lower.

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

Andrzej Udalski 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 Andrzej Udalski 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: 119 D-Index — 78th percentile

78% 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

  • 2026 - Research.com Physics in Poland Leader Award
  • 2025 - Research.com Physics in Poland Leader Award
  • 2016 - Polish Academy of Science
  • 2012 - Member of the National Academy of Sciences
  • 2002 - Prize of the Foundation for Polish Science - Nagroda Fundacji na rzecz Nauki Polskiej for his work concerning the revision of the distance scale of the Universe and discovering many planetary low-luminosity companions to solar-type stars

Overview

Andrzej Udalski is affiliated with the University of Warsaw in Poland and has an extensive research portfolio in physics and astronomy, with a particular emphasis on astronomy and astrophysics. Over the course of their career, they have published 527 works primarily focused on the study of stellar, planetary, and galactic phenomena.

Their research covers a broad range of topics, including:

  • Stellar, planetary, and galactic studies
  • Astronomy and astrophysical research
  • Gamma-ray bursts and supernovae
  • Astrophysical phenomena and observations
  • Astrophysics and star formation studies
  • Astronomical observations and instrumentation
  • Astro and planetary science

Udalski's frequent publication venues reflect a strong presence in the field of astronomy and astrophysics, including prominent sources such as:

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

The scientist has collaborated extensively with several peers. Notable frequent co-authors include:

  • I. Soszyński
  • P. Mróz
  • P. Pietrukowicz
  • J. Skowron
  • S. Kozłowski

Among Udalski's recent publications are several significant papers, including:

  • An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing (2022), published in The Astrophysical Journal Letters
  • A classifier for spurious astrometric solutions in Gaia eDR3 (2021), published in Monthly Notices of the Royal Astronomical Society
  • An X-ray-quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud (2022), published in Nature Astronomy
  • No massive black holes in the Milky Way halo (2024), published in Nature
  • (Untitled paper by K. C. Sahu, 2022), published in Warwick Research Archive Portal (University of Warwick)

Udalski's work spans several related subfields, notably:

  • Astronomy and Astrophysics
  • Instrumentation
  • Computational Mechanics
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering

The scientist's contributions have been recognized with several awards over the years. These include the Polish Academy of Science award in 2016, membership in the National Academy of Sciences since 2012, and the Prize of the Foundation for Polish Science awarded in 2002 for their work on revising the distance scale of the Universe and discovering many planetary low-luminosity companions to solar-type stars.

Best Publications

  • Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing

    J.-P. Beaulieu;D. P. Bennett;P. Fouqué;A. Williams

  • An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent

    G. Pietrzyński;G. Pietrzyński;D. Graczyk;W. Gieren;I. B. Thompson

  • One or more bound planets per Milky Way star from microlensing observations

    A. Cassan;A. Cassan;D. Kubas;D. Kubas;J.-P. Beaulieu;J.-P. Beaulieu;M. Dominik;M. Dominik

  • OGLE 2003-BLG-235/MOA 2003-BLG-53: A Planetary Microlensing Event

    I. A. Bond;A. Udalski;M. Jaroszyński;M. Jaroszyński;N. J. Rattenbury

  • Unbound or distant planetary mass population detected by gravitational microlensing

    T. Sumi;K. Kamiya;D. P. Bennett

  • Discovery of a Jupiter/Saturn Analog with Gravitational Microlensing

    B. S. Gaudi;D. P. Bennett;A. Udalski;A. Gould

  • REDDENING AND EXTINCTION TOWARD THE GALACTIC BULGE FROM OGLE-III: THE INNER MILKY WAY'S RV ∼ 2.5 EXTINCTION CURVE*

    David M. Nataf;David M. Nataf;Andrew Gould;Pascal Fouqué;Pascal Fouqué;Oscar A. Gonzalez

  • V1309 Scorpii: merger of a contact binary

    R. Tylenda;M. Hajduk;T. Kamiński;A. Udalski

  • OGLE-2003-BLG-262: Finite-Source Effects from a Point-Mass Lens

    Jaiyul Yoo;D. L. DePoy;A. Gal-Yam;B. S. Gaudi

  • Frequency of Solar-Like Systems and of Ice and Gas Giants Beyond the Snow Line from High-Magnification Microlensing Events in 2005-2008

    A. Gould;Subo Dong;B.S. Gaudi;A. Udalski

  • Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars - V. Evidence for a wide age distribution and a complex MDF

    Thomas Bensby;J. C. Yee;Sofia Feltzing;J. A. Johnson

  • Quantifying Quasar Variability As Part of a General Approach To Classifying Continuously Varying Sources

    Szymon Kozlowski;Christopher S. Kochanek;A. Udalski;L. Wyrzykowski;L. Wyrzykowski

  • OGLE 2003-BLG-235/MOA 2003-BLG-53: A planetary microlensing event

    I. A. Bond;A. Udalski;M. Jaroszynski;N. J. Rattenbury

  • Microlens OGLE-2005-BLG-169 Implies Cool Neptune-Like Planets are Common

    A. Gould;A. Udalski;D. An;D. P. Bennett

  • IS QUASAR OPTICAL VARIABILITY A DAMPED RANDOM WALK

    Ying Zu;C. S. Kochanek;Szymon Kozłowski;Andrzej Udalski

  • QUANTIFYING QUASAR VARIABILITY AS PART OF A GENERAL APPROACH TO CLASSIFYING CONTINUOUSLY VARYING SOURCES

    Szymon Kozłowski;Christopher S. Kochanek;A. Udalski;Ł. Wyrzykowski;Ł. Wyrzykowski

  • Microlens OGLE-2005-BLG-169 Implies That Cool Neptune-like Planets Are Common

    A. Gould;A. Udalski;D. An;D. P. Bennett

  • THE SPLIT RED CLUMP OF THE GALACTIC BULGE FROM OGLE-III

    David Nataf;A Udalski;A Gould;P. Fouque

  • FREQUENCY OF SOLAR-LIKE SYSTEMS AND OF ICE AND GAS GIANTS BEYOND THE SNOW LINE FROM HIGH-MAGNIFICATION MICROLENSING EVENTS IN 2005-2008

    A. Gould;Subo Dong;B. S. Gaudi;A. Udalski

  • A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071

    A. Udalski;M. Jaroszyński;B. Paczyński;M. Kubiak

Frequent Co-Authors

Michał K. Szymański
Michał K. Szymański University of Warsaw
Igor Soszyński
Igor Soszyński University of Warsaw
Grzegorz Pietrzyński
Grzegorz Pietrzyński Polish Academy of Sciences
Krzysztof Ulaczyk
Krzysztof Ulaczyk University of Warwick
M. Kubiak
M. Kubiak University of Warsaw
Andrew Gould
Andrew Gould The Ohio State University
Łukasz Wyrzykowski
Łukasz Wyrzykowski University of Warsaw
David P. Bennett
David P. Bennett Goddard Space Flight Center
Fumio Abe
Fumio Abe Nagoya University
Yoshitaka Itow
Yoshitaka Itow Nagoya University

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