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Researcher · European Space Research and Technology Centre · Netherlands

Hans Ulrik Nørgaard-Nielsen

Hans Ulrik Nørgaard-Nielsen publishes mostly in Astronomy and Astrophysics, Nuclear and High Energy Physics and Statistical and Nonlinear Physics, on topics such as Galaxies: Formation, Evolution, Phenomena, Cosmology and Gravitation Theories and Astrophysics and Star Formation Studies.

OpenAlex
World rank
#3,694
of 7,710,434 ranked researchers
Rank in Netherlands
#35
of 107,149
Works
164
Citations
70k
Citations per work
425.0
h-index
87
i10-index 127Top 1.1% in Astronomy and Astrophysics
Hans Ulrik Nørgaard-Nielsen

What does Hans Ulrik Nørgaard-Nielsen research?

Hans Ulrik Nørgaard-Nielsen's work is mostly in Physics and Astronomy (82%), Engineering (3%).

Physical Sciences: 140 works · 85.4% of their workPhysics and Astronomy: 134 works · 82.0% of their workAstronomy and Astrophysics: 90 works · 55.1% of their workNuclear and High Energy Physics: 20 works · 12.2% of their workStatistical and Nonlinear Physics: 10 works · 5.8% of their workAtomic and Molecular Physics, and Optics: 9 works · 5.3% of their workInstrumentation: 6 works · 3.6% of their workEngineering: 6 works · 3.4% of their workAerospace Engineering: 6 works · 3.4% of their workEverything else: 24 works · 14.6% of their workTHEIR WORKHans UlrikNørgaard-Nielsen164works
Physical Sciences85%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Physics and Astronomy13482.0%
    2. Engineering63.4%
  2. Everything else2414.6%
  1. 1Astronomy and Astrophysics55% of their works
  2. 2Nuclear and High Energy Physics12% of their works
  3. 3Statistical and Nonlinear Physics6% of their works
  4. 4Atomic and Molecular Physics, and Optics5% of their works
  5. 5Instrumentation4% of their works
  6. 6Aerospace Engineering3% of their works

Research topics

Which keywords describe Hans Ulrik Nørgaard-Nielsen's research?

The keywords of their largest research topics: Dark Matter, Star Formation, Black Holes, Galaxies, Cosmological Parameters, Dark Energy, Cosmic Rays and Neutrinos.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most. The words come from the keyword list OpenAlex gives each topic, not from the text of the papers, so a word can appear that none of the papers uses.

All 20 words, with their numbers
  1. Dark Matter1012 topics
  2. Star Formation1012 topics
  3. Black Holes661 topic
  4. Galaxies661 topic
  5. Cosmological Parameters641 topic
  6. Dark Energy641 topic
  7. Cosmic Rays572 topics
  8. Neutrinos572 topics
  9. Axions351 topic
  10. Molecular Clouds351 topic
  11. Protoplanetary Disks351 topic
  12. WIMPs351 topic
  13. Exoplanets281 topic
  14. Stellar Astrophysics281 topic
  15. Epoch of Reionization231 topic
  16. Radio Astronomy231 topic
  17. High-Energy Astrophysics221 topic
  18. Particle Acceleration221 topic
  19. Casimir Effect181 topic
  20. Quantum Vacuum181 topic

Where does Hans Ulrik Nørgaard-Nielsen work?

Hans Ulrik Nørgaard-Nielsen's main affiliation in the publication record is European Space Research and Technology Centre, Netherlands.

How many publications and citations does Hans Ulrik Nørgaard-Nielsen have?

OpenAlex counts 164 works and 69,708 citations for Hans Ulrik Nørgaard-Nielsen, an h-index of 87, ranking #3,694 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised citation excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named Hans Ulrik Nørgaard-Nielsen

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