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Research facility · Almería · Spain

Calar Alto Observatory

caha.esROR OpenAlex
Research works
113
▼ 33% vs 2018-21
Citations
4.3k
37.6 per fractional work
Top-10% rate
12.0%
all institutions 10.0%
Open access
72%
world 40%
International
73%
world 18%
Calar Alto Observatory

Not ranked overall: Calar Alto Observatory is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

Which fields of science does Calar Alto Observatory work in?

In all years, 92% of research at Calar Alto Observatory is in Physical Sciences, 3% in Health Sciences. Its largest fields are Physics and Astronomy (78%), Engineering (8%), Environmental Science (3%). It does 2.2× the world's share of Physical Sciences.

Physical Sciences: 105 fractional works · 92.3% of its workPhysics and Astronomy: 88 fractional works · 77.9% of its workAstronomy and Astrophysics: 62 fractional works · 54.8% of its workInstrumentation: 18 fractional works · 15.7% of its workAtomic and Molecular Physics, and Optics: 6 fractional works · 5.0% of its workNuclear and High Energy Physics: 2 fractional works · 1.7% of its workStatistical and Nonlinear Physics: 1 fractional works · 0.8% of its workEngineering: 9 fractional works · 7.6% of its workComputational Mechanics: 4 fractional works · 3.3% of its workElectrical and Electronic Engineering: 2 fractional works · 1.9% of its workAerospace Engineering: 1 fractional works · 1.0% of its workBiomedical Engineering: 1 fractional works · 0.6% of its workCivil and Structural Engineering: 0 fractional works · 0.3% of its workControl and Systems Engineering: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 4 fractional works · 3.1% of its workGlobal and Planetary Change: 2 fractional works · 1.8% of its workEcology: 1 fractional works · 0.5% of its workHealth, Toxicology and Mutagenesis: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.4% of its workChemistry: 2 fractional works · 1.7% of its workSpectroscopy: 2 fractional works · 1.6% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 1 fractional works · 1.2% of its workAtmospheric Science: 1 fractional works · 0.9% of its workGeophysics: 0 fractional works · 0.2% of its workComputer Science: 0 fractional works · 0.4% of its workComputer Vision and Pattern Recognition: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.3% of its workApplied Mathematics: 0 fractional works · 0.3% of its workChemical Engineering: 0 fractional works · 0.1% of its workEnergy: 0 fractional works · 0.0% of its workHealth Sciences: 3 fractional works · 2.7% of its workNursing: 2 fractional works · 1.4% of its workIssues, ethics and legal aspects: 1 fractional works · 1.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMedicine: 1 fractional works · 0.9% of its workDentistry: 0 fractional works · 0.4% of its workOral Surgery: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 3 fractional works · 2.7% of its workEconomics, Econometrics and Finance: 1 fractional works · 1.1% of its workEconomics and Econometrics: 1 fractional works · 1.1% of its workArts and Humanities: 1 fractional works · 1.1% of its workArcheology: 1 fractional works · 0.5% of its workVisual Arts and Performing Arts: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 1 fractional works · 0.5% of its workLife Sciences: 3 fractional works · 2.3% of its workAgricultural and Biological Sciences: 1 fractional works · 1.0% of its workPlant Science: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNeuroscience: 1 fractional works · 0.6% of its workEndocrine and Autonomic Systems: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workBiochemistry, Genetics and Molecular Biology: 1 fractional works · 0.6% of its workBiophysics: 0 fractional works · 0.4% of its workMolecular Biology: 0 fractional works · 0.2% of its workImmunology and Microbiology: 0 fractional works · 0.2% of its workALL ITS WORKCalar AltoObservatory113fractional works, all years
Life Sciences2%Physical Sciences92%Health Sciences3%Social Sciences3%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in all years. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 19 fields, with their numbers
    1. Physics and Astronomy8877.9%
    2. Engineering97.6%
    3. Environmental Science43.1%
    4. Chemistry21.7%
    5. Earth and Planetary Sciences11.2%
    6. Computer Science00.4%
    7. Mathematics00.3%
    8. Chemical Engineering00.1%
    9. Energy00.0%
    1. Nursing21.4%
    2. Medicine10.9%
    3. Dentistry00.4%
    1. Economics, Econometrics and Finance11.1%
    2. Arts and Humanities11.1%
    3. Social Sciences10.5%
    1. Agricultural and Biological Sciences11.0%
    2. Neuroscience10.6%
    3. Biochemistry, Genetics and Molecular Biology10.6%
    4. Immunology and Microbiology00.2%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 2.17× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.10× its world share, 0 worksBiochemistry, Geneti…Computer Science: 0.21× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 2.23× its world share, 0 worksEarth and Planetary …Energy: 0.50× its world share, 0 worksEnergyEngineering: 0.27× its world share, 0 worksEngineeringEnvironmental Science: 1.80× its world share, 1 worksEnvironmental SciencePhysics and Astronomy: 29.32× its world share, 5 worksPhysics and AstronomyMedicine: 0.14× its world share, 0 worksMedicineSocial Sciences: 0.21× 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, 29.3×. Every wedge is a field page.

All 10 fields, with their numbers
  1. Physics and Astronomy29.32×5 works
  2. Earth and Planetary Sciences2.23×0 works
  3. Agricultural and Biological Sciences2.17×1 works
  4. Environmental Science1.80×1 works
  5. Energy0.50×0 works
  6. Engineering0.27×0 works
  7. Computer Science0.21×0 works
  8. Social Sciences0.21×0 works
  9. Medicine0.14×0 works
  10. Biochemistry, Genetics and Molecular Biology0.10×0 works

Who are the top researchers at Calar Alto Observatory?

Ranked on the quality score, E. de Juan, Jens Helmling and D. Benítez lead among researchers whose main affiliation is Calar Alto Observatory.

  1. 1 E. de Juan Spain · #474,965 worldwide 1.6k citations · 23 works
  2. 2 Jens Helmling Spain · #612,989 worldwide 1.5k citations · 25 works
  3. 3 D. Benítez Spain · #653,003 worldwide 1.5k citations · 25 works
  4. 4 M. López del Fresno Spain · #736,731 worldwide 1.5k citations · 31 works
  5. 5 Jesús Aceituno Spain · #789,381 worldwide 4.4k citations · 156 works
  6. 6 E. de Guindos Spain · #912,268 worldwide 1.6k citations · 40 works
  7. 7 J. F. López Salas Spain · #925,474 worldwide 1.2k citations · 26 works
  8. 8 D. Galadí-Enríquez Spain · #930,712 worldwide 2.8k citations · 145 works
  9. 9 I. Hermelo Spain · #1,114,504 worldwide 1.2k citations · 45 works
  10. 10 R. P. Hedrosa Spain · #1,319,171 worldwide 1.1k citations · 30 works
All ranked researchers at Calar Alto Observatory

What are the most cited papers from Calar Alto Observatory?

The most cited paper from Calar Alto Observatory is "Medium-resolution Isaac Newton Telescope library of empirical spectra" (P. Sánchez–Blázquez, R. F. Peletier, J. Jiménez-Vicente et al., 2006), with 1,615 citations. Next come "CALIFA, the Calar Alto Legacy Integral Field Area survey" (1,286) and "A Survey of [CLC][ITAL]z[/ITAL][/CLC] > 5.8 Quasars in the Sloan Digital Sky Survey. I. Discovery of Three New Quasars and the Spatial Density of Luminous Quasars at [CLC][ITAL]z[/ITAL][/CLC] ∼ 6" (960).

Most cited papers
#PaperReleasedCitations
1 Medium-resolution Isaac Newton Telescope library of empirical spectra P. Sánchez–Blázquez, R. F. Peletier, J. Jiménez-Vicente et al. · Monthly Notices of the Royal Astronomical Society Open access 11 Sep 2006 1,615
2 CALIFA, the Calar Alto Legacy Integral Field Area survey Sebastián F. Sánchez et al. · Astronomy and Astrophysics Open access 10 Nov 2011 1,286
3 A Survey of [CLC][ITAL]z[/ITAL][/CLC] > 5.8 Quasars in the Sloan Digital Sky Survey. I. Discovery of Three New Quasars and the Spatial Density of Luminous Quasars at [CLC][ITAL]z[/ITAL][/CLC] ∼ 6 Xiaohui Fan et al. · The Astronomical Journal Open access Dec 2001 960
4 A Survey of [CLC][ITAL]z[/ITAL][/CLC] ] 5.7 Quasars in the Sloan Digital Sky Survey. II. Discovery of Three Additional Quasars at [CLC][ITAL]z[/ITAL][/CLC] ] 6 Xiaohui Fan et al. · The Astronomical Journal Open access 25 Mar 2003 782
5 The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and T e -based literature data R. A. Marino et al. · Astronomy and Astrophysics Open access 12 Aug 2013 595
All 57 most cited papers, with filters and sorting

Which keywords describe research at Calar Alto Observatory?

By fractional works in all years, weighted toward what it does more of than the world: Star Formation, Exoplanets, Stellar Astrophysics, Astronomical Instrumentation, Spectrograph, Black Holes, Accretion Disks and Magnetic Fields.

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

Size is fractional works in all years 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 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Star Formation26▲ 244×2 topics
  2. Exoplanets21▲ 250×1 topic
  3. Stellar Astrophysics21▲ 250×1 topic
  4. Astronomical Instrumentation18▲ 304×1 topic
  5. Spectrograph18▲ 304×1 topic
  6. Black Holes17▲ 101×2 topics
  7. Accretion Disks16▲ 171×2 topics
  8. Magnetic Fields16▲ 134×2 topics
  9. Cosmology13▲ 128×2 topics
  10. Dark Matter13▲ 63×2 topics
  11. Galaxies13▲ 265×1 topic
  12. Stellar Populations13▲ 265×1 topic
  13. Molecular Clouds12▲ 225×1 topic
  14. Protoplanetary Disks12▲ 225×1 topic
  15. Solar System Abundances4▲ 47×1 topic
  16. Terrestrial Planets4▲ 47×1 topic
  17. Nucleosynthesis4▲ 35×3 topics
  18. Adaptive Optics4▲ 174×1 topic
  19. Wavefront Sensing4▲ 174×1 topic
  20. Gravitational Waves4▲ 53×2 topics
  21. Supernovae4▲ 33×2 topics
  22. Optical 3D Laser Measurement4▲ 170×1 topic
  23. Position-Sensitive Detector4▲ 170×1 topic
  24. Gamma-Ray Bursts4▲ 95×1 topic
  25. Neutron Stars4▲ 95×1 topic
  26. Galactic Center4▲ 50×2 topics
  27. Event Horizon Telescope3▲ 91×1 topic
  28. X-Ray Astronomy3▲ 91×1 topic
  29. Remote Sensing3▲ 2.1×9 topics
  30. Spectroscopy2▲ 6.8×6 topics
  31. Radio Astronomy2▲ 48×2 topics
  32. High-Resolution Imaging2▲ 24×1 topic
  33. Transits of Venus2▲ 74×1 topic
  34. Hydrogen Bonds1▲ 45×2 topics
  35. Nighttime Light Data1▲ 58×1 topic
  36. Cosmic Rays1▲ 18×2 topics
  37. Health Policy1▲ 7.7×1 topic
  38. Neutrinos1▲ 18×2 topics
  39. Nursing Advocacy1▲ 64×1 topic
  40. High-Energy Astrophysics1▲ 29×1 topic

Which research topics does Calar Alto Observatory publish most on?

By volume in 2022-now: Stellar, planetary, and galactic studies, Astronomy and Astrophysical Research, Astrophysics and Star Formation Studies and Gamma-ray bursts and supernovae.

Stellar, planetary, and …1Stellar, planetary, and galactic studies: 1 fractional worksAstronomy and Astrophysical Research: 1 fractional worksAstrophysics and Star Formation Studies: 1 fractional worksGamma-ray bursts and supernovae: 1 fractional worksHealth, Environment, Cognitive Aging: 0 fractional worksAstro and Planetary Scie…0Astro and Planetary Science: 0 fractional worksGalaxies: Formation, Evolution, Phenomena: 0 fractional worksAstrophysical Phenomena and Observations: 0 fractional worksTree-ring climate responses: 0 fractional worksBerry genetics and cultivation research: 0 fractional works
Astronomy and AstrophysicsInstrumentationHealth, Toxicology and MutagenesisAtmospheric Science1 others

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

  1. 1 Stellar, planetary, and galactic studies Astronomy and Astrophysics 1 works
  2. 2 Astronomy and Astrophysical Research Instrumentation 1 works
  3. 3 Astrophysics and Star Formation Studies Astronomy and Astrophysics 1 works
  4. 4 Gamma-ray bursts and supernovae Astronomy and Astrophysics 1 works
  5. 5 Health, Environment, Cognitive Aging Health, Toxicology and Mutagenesis 0 works
  6. 6 Astro and Planetary Science Astronomy and Astrophysics 0 works
  7. 7 Galaxies: Formation, Evolution, Phenomena Astronomy and Astrophysics 0 works
  8. 8 Astrophysical Phenomena and Observations Astronomy and Astrophysics 0 works
  9. 9 Tree-ring climate responses Atmospheric Science 0 works
  10. 10 Berry genetics and cultivation research Plant Science 0 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 available71.9%not open28.1%

World: 40% of research is openly available.

with international co-authors73.1%domestic only26.9%

World: 18% is written across borders.

How has Calar Alto Observatory's research output changed?

Output in 2022-2025 was 33% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Calar Alto Observatory as a percentage of every work published that year, 0.000042% in 2024.

still counting0.00020%0.00040%Calar Alto Observatory0.000032% in 20251990200020102020

Fractional works of Calar Alto Observatory over all fractional works that year. How the balance of science has shifted.

Other research institutions in Almería

All research institutions in Almería

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

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