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Research facility · Leiden · ??

Leiden Observatory

In research, Leiden Observatory stands highest in Physical Sciences (#2,855 of 21,541 worldwide), Astronomy and Astrophysics (#303 of 1,146 worldwide) and Physics and Astronomy (#1,282 of 3,663 worldwide), over all time. Relative to its size it is most specialised in Physics and Astronomy — Physics and Astronomy is 32.8× its share of world research.

universiteitleiden.nl/en/science/astronomyROR OpenAlex
World rank, all time
#4,578
of 42,892
Rank in ??
#43
of 1,041
Research works
988
▼ 33% vs 2013–17
Citations
35k
35.7 per fractional work
Top-10% rate
29.8%
record average 16.5%
Open access
63%
world 28%

What is Leiden Observatory known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #2,855 of 21,541 26.1%948
Astronomy and AstrophysicsSubfield #303 of 1,146 28.7%528
Physics and AstronomyField #1,282 of 3,663 27.8%743

Each strip is that field’s whole ranked pool, with the notch where Leiden Observatory sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

What does Leiden Observatory specialise in?

Where its research is concentrated relative to its size: Physics and Astronomy takes 32.8× the share of its output that it takes of world research.

  1. Physics and AstronomyField · 21.0 works33×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.18× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.01× its world share, 0 worksBiochemistry, Geneti…Neuroscience: 0.14× its world share, 0 worksNeuroscienceChemistry: 2.47× its world share, 1 worksChemistryComputer Science: 0.51× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 3.08× its world share, 1 worksEarth and Planetary …Energy: 0.46× its world share, 0 worksEnergyEngineering: 0.59× its world share, 2 worksEngineeringEnvironmental Science: 0.36× its world share, 0 worksEnvironmental ScienceMathematics: 0.46× its world share, 0 worksMathematicsPhysics and Astronomy: 32.81× its world share, 21 worksPhysics and AstronomyDecision Sciences: 0.60× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.11× its world share, 0 worksEconomics, Econometr…Social Sciences: 0.06× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 32.8×. Every wedge is a field page.

Who are the top researchers at Leiden Observatory?

Ranked on the composite score, H. J. Habing, W. B. Burton and Dap Hartmann lead among researchers whose main affiliation is Leiden Observatory.

  1. 1 H. J. Habing ?? · #47,231 worldwide 306 citations · 37 works
  2. 2 W. B. Burton ?? · #62,153 worldwide 584 citations · 56 works
  3. 3 Dap Hartmann ?? · #66,892 worldwide 583 citations · 26 works
  4. 4 R. S. Le Poole ?? · #342,552 worldwide 114 citations · 18 works
  5. 5 P. Katgert ?? · #910,820 worldwide 88 citations · 29 works
All ranked researchers at Leiden Observatory

Which keywords describe research at Leiden Observatory?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Star Formation, Accretion Disks, Magnetic Fields, Molecular Clouds, Protoplanetary Disks, Exoplanets, Stellar Astrophysics and Solar System Abundances.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 17 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 17 words, with their numbers
  1. Star Formation5▲ 354×2 topics
  2. Accretion Disks5▲ 359×2 topics
  3. Magnetic Fields5▲ 260×2 topics
  4. Molecular Clouds4▲ 514×1 topic
  5. Protoplanetary Disks4▲ 514×1 topic
  6. Exoplanets3▲ 284×1 topic
  7. Stellar Astrophysics3▲ 284×1 topic
  8. Solar System Abundances3▲ 210×1 topic
  9. Terrestrial Planets3▲ 210×1 topic
  10. Black Holes3▲ 103×3 topics
  11. Astronomical Instrumentation3▲ 372×1 topic
  12. Spectrograph3▲ 372×1 topic
  13. Cosmology2▲ 87×1 topic
  14. Galaxies2▲ 210×1 topic
  15. Gravitational Waves1▲ 74×2 topics
  16. Event Horizon Telescope1▲ 181×1 topic
  17. X-Ray Astronomy1▲ 181×1 topic

Which research topics does Leiden Observatory publish most on?

By volume in 2022–2025: Astrophysics and Star Formation Studies, Stellar, planetary, and galactic studies, Astro and Planetary Science and Astronomy and Astrophysical Research.

Astrophysics and Star Fo…4Astrophysics and Star Formation Studies: 4 fractional worksStellar, planetary, and galactic studies: 3 fractional worksAstro and Planetary Science: 3 fractional worksAstronomy and Astrophysi…3Astronomy and Astrophysical Research: 3 fractional worksGalaxies: Formation, Evo…2Galaxies: Formation, Evolution, Phenomena: 2 fractional worksAstrophysical Phenomena and Observations: 1 fractional worksPlanetary Science and Exploration: 1 fractional worksGamma-ray bursts and sup…1Gamma-ray bursts and supernovae: 1 fractional worksMolecular Spectroscopy and Structure: 1 fractional worksAdaptive optics and wavefront sensing: 1 fractional works
Astronomy and AstrophysicsInstrumentationSpectroscopyAtomic and Molecular Physics, and Optics

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Astrophysics and Star Formation Studies Astronomy and Astrophysics 4 works
  2. 2 Stellar, planetary, and galactic studies Astronomy and Astrophysics 3 works
  3. 3 Astro and Planetary Science Astronomy and Astrophysics 3 works
  4. 4 Astronomy and Astrophysical Research Instrumentation 3 works
  5. 5 Galaxies: Formation, Evolution, Phenomena Astronomy and Astrophysics 2 works
  6. 6 Astrophysical Phenomena and Observations Astronomy and Astrophysics 1 works
  7. 7 Planetary Science and Exploration Astronomy and Astrophysics 1 works
  8. 8 Gamma-ray bursts and supernovae Astronomy and Astrophysics 1 works
  9. 9 Molecular Spectroscopy and Structure Spectroscopy 1 works
  10. 10 Adaptive optics and wavefront sensing Atomic and Molecular Physics, and Optics 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available62.7%not open37.3%

World: 28% of research is openly available.

with international co-authors45.0%domestic only55.0%

World: 19% is written across borders.

How has Leiden Observatory's research output changed?

Output in 2018–2022 was 33% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Leiden

All research institutions in Leiden

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.