World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
60
Citations
12591
World Ranking
9709
National Ranking
2729

Tomas Baer publication distribution in Chemistry in 2026

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

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 297 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Tomas Baer D-index placement in Chemistry in 2026

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

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 60 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Research.com Recognitions

  • 1976 - Fellow of John Simon Guggenheim Memorial Foundation

Overview

Tomas Baer is affiliated with the University of North Carolina at Chapel Hill in the United States. Their research spans multiple fields, primarily focusing on Physics and Astronomy as well as Chemistry. The subfields of study that characterize their work include Atomic and Molecular Physics, and Optics; Spectroscopy; Surfaces, Coatings and Films; Structural Biology; and Biomedical Engineering.

Their research topics cover several specialized themes: Advanced Chemical Physics Studies, Mass Spectrometry Techniques and Applications, Spectroscopy and Quantum Chemical Studies, Spectroscopy and Laser Applications, Electron and X-Ray Spectroscopy Techniques, Advanced Electron Microscopy Techniques and Applications, and Photocathodes and Microchannel Plates.

Tomas Baer has contributed to several publications, including the following recent papers:

  • To roam or not to roam, that is the question for the methyl group in isopropanol cations, 2020, International Journal of Mass Spectrometry
  • High-resolution pulsed field ionization photoelectron-photoion coincidence study of CH4: Accurate 0 K dissociation threshold for CH3+, 2021, UNC Libraries
  • Imaging photoelectron photoion coincidence spectroscopy with velocity focusing electron optics, 2021, UNC Libraries

Their frequent coauthors include:

  • András Bödi
  • Bálint Sztáray
  • Kyle J. Covert
  • Krisztián G. Torma
  • Krisztina Voronova

Tomas Baer's publications have appeared mainly in two venues:

  • UNC Libraries
  • International Journal of Mass Spectrometry

In recognition of their contributions, Tomas Baer was awarded the Fellowship of the John Simon Guggenheim Memorial Foundation in 1976.

Best Publications

  • Unimolecular reaction dynamics : theory and experiments

    Tomas Baer;William L. Hase

  • Unimolecular reaction dynamics

    Tomas Baer

  • Suppression of hot electrons in threshold photoelectron photoion coincidence spectroscopy using velocity focusing optics

    Bálint Sztáray;Tomas Baer

  • Reactive Uptake of Ozone by Oleic Acid Aerosol Particles: Application of Single-Particle Mass Spectrometry to Heterogeneous Reaction Kinetics

    Geoffrey D. Smith;Ephraim Woods;Cindy L. Deforest;Tomas Baer

  • Imaging photoelectron photoion coincidence spectroscopy with velocity focusing electron optics

    Andras Bodi;Melanie Johnson;Thomas Gerber;Zsolt Gengeliczki

  • Aerosol mass spectrometry: An introductory review

    David G. Nash;Tomas Baer;Murray V. Johnston

  • Photoionization resonance studies with a steradiancy analyzer. II. The photoionization of CH3I

    Tomas Baer;W.B. Peatman;E.W. Schlag

  • Data acquisition schemes for continuous two-particle time-of-flight coincidence experiments

    Andras Bodi;Bálint Sztáray;Tomas Baer;Melanie Johnson

  • Modeling unimolecular reactions in photoelectron photoion coincidence experiments

    Bálint Sztáray;Andras Bodi;Tomas Baer

  • The dissociation dynamics of internal energy selected C6H6+ a)

    Tomas Baer;Gary D. Willettb;Deborah Smithc;J. Sanford Phillipsd

  • Advances in threshold photoelectron spectroscopy (TPES) and threshold photoelectron photoion coincidence (TPEPICO)

    Tomas Baer;Richard P. Tuckett

  • Photoionization study of the ionization potentials and fragmentation paths of the chlorinated methanes and carbon tetrabromide

    Arthur S. Werner;Bilin P. Tsai;Tomas Baer

  • Gas-Phase Ion Dynamics and Chemistry

    P. B. Armentrout;Tomas Baer

  • Non‐Franck–Condon transitions in resonant autoionization of N2O

    Tomas Baer;Paul‐Marie Guyon;Irene Nenner;Abdallah Tabché‐Fouhaillé

  • ABSOLUTE UNIMOLECULAR DECAY RATES OF ENERGY SELECTED C4H6(+) METASTABLE IONS

    Arthur S. Werner;Tomas Baer

  • Ion spectroscopy: where did it come from; where is it now; and where is it going?

    Tomas Baer;Robert C. Dunbar

  • A threshold photoelectron–photoion coincidence study of the N2O+ dissociation between 15 and 20.5 eV

    Irene Nenner;Paul‐Marie Guyon;Tomas Baer;Thomas R. Govers

  • Unimolecular and bimolecular ion-molecule reaction dynamics

    C. Y. Ng;Tomas Baer;Ivan Powis

  • Kinetic energy release distributions for the dissociation of internal energy selected CH3I+ and CD3I+ ions

    Donald M. Mintz;Tomas Baer

  • Photoelectron-photoion coincidence study of the ionization and fragment appearance potentials of bromo- and iodomethanes

    Bilin P. Tsal;Tomas Baer;Arthur S. Werner;Stephen F. Lin

  • High resolution laser photoionization and photoelectron studies

    Ivan Powis;Tomas Baer;C. Y. Ng

Frequent Co-Authors

Cheuk-Yiu Ng
Cheuk-Yiu Ng University of California, Davis
Roger E. Miller
Roger E. Miller University of North Carolina at Chapel Hill
William L. Hase
William L. Hase Texas Tech University
Simon H. Bauer
Simon H. Bauer Cornell University
Willi A. Brand
Willi A. Brand Max Planck Institute for Biogeochemistry
Musahid Ahmed
Musahid Ahmed Lawrence Berkeley National Laboratory
Robert C. Dunbar
Robert C. Dunbar Case Western Reserve University
John L. Holmes
John L. Holmes University of Ottawa
P. B. Armentrout
P. B. Armentrout University of Utah
John F. Stanton
John F. Stanton University of Florida

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