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Researcher · Aarhus University · Denmark

H. Kjeldsen

H. Kjeldsen publishes mostly in Atomic and Molecular Physics, and Optics, Astronomy and Astrophysics and Ecology, on topics such as Atomic and Molecular Physics, Mass Spectrometry Techniques and Applications and Isotope Analysis in Ecology.

World rank
#567,470
of 1,633,909 ranked researchers
Rank in Denmark
#4,152
of 10,734
Works
21
Citations
116
Citations per work
5.5

What does H. Kjeldsen research?

Atomic and Molecular Physics, and Optics: 25.8%Astronomy and Astrophysics: 16.1%Ecology: 9.7%Radiation: 9.7%other fields: 38.7%26%top field
Atomic and Molecular Physics, and Optics25.8%Astronomy and Astrophysics16.1%Ecology9.7%Radiation9.7%other fields38.7%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Atomic and Molecular Physics, and Optics26% of their works
  2. 2Astronomy and Astrophysics16% of their works
  3. 3Ecology10% of their works
  4. 4Radiation10% of their works
  5. 5Spectroscopy10% of their works
  6. 6Cognitive Neuroscience6% of their works

Research topics

Which keywords describe H. Kjeldsen's research?

The keywords of their largest research topics: DNA Strand Breaks, Low-Energy Electrons, Density Functional Theory, Dispersion Correction, Ionization, Mass Spectrometry, Spectroscopy and Stable Isotopes.

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.

All 16 words, with their numbers
  1. DNA Strand Breaks51 topic
  2. Low-Energy Electrons51 topic
  3. Density Functional Theory31 topic
  4. Dispersion Correction31 topic
  5. Ionization31 topic
  6. Mass Spectrometry31 topic
  7. Spectroscopy31 topic
  8. Stable Isotopes31 topic
  9. Trophic Position31 topic
  10. X-ray Absorption31 topic
  11. Exoplanets21 topic
  12. Solar System Abundances21 topic
  13. Stellar Astrophysics21 topic
  14. Terrestrial Planets21 topic
  15. Neurotransmission11 topic
  16. Synaptic Plasticity11 topic

Where does H. Kjeldsen work?

H. Kjeldsen's main affiliation in the publication record is Aarhus University, Denmark.

How many publications and citations does H. Kjeldsen have?

Science Explorer counts 21 works and 116 citations for H. Kjeldsen, ranking #567,470 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised 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 H. Kjeldsen

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