National Astronomical Observatory of Japan

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.
National Astronomical Observatory of Japan
Short name
NAOJ
Country, city
Japan, Mitaka-shi
Publications
10 421
Citations
319 029
h-index
205
Top-3 organizations
University of Tokyo
University of Tokyo (3549 publications)
Kyoto University
Kyoto University (1325 publications)

Most cited in 5 years

Found 
 / 
 / 
 / 
Found 

Since 1968

Total publications
10421
Total citations
319029
Citations per publication
30.61
Average publications per year
176.63
Average authors per publication
14.84
h-index
205
Metrics description
h-index
A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

Top-30

Fields of science

1000
2000
3000
4000
5000
6000
7000
Astronomy and Astrophysics, 6642, 63.74%
Astronomy and Astrophysics
6642 publications, 63.74%
Space and Planetary Science, 6622, 63.54%
Space and Planetary Science
6622 publications, 63.54%
Geophysics, 292, 2.8%
Geophysics
292 publications, 2.8%
General Physics and Astronomy, 272, 2.61%
General Physics and Astronomy
272 publications, 2.61%
Nuclear and High Energy Physics, 232, 2.23%
Nuclear and High Energy Physics
232 publications, 2.23%
General Earth and Planetary Sciences, 219, 2.1%
General Earth and Planetary Sciences
219 publications, 2.1%
Electrical and Electronic Engineering, 201, 1.93%
Electrical and Electronic Engineering
201 publications, 1.93%
Condensed Matter Physics, 190, 1.82%
Condensed Matter Physics
190 publications, 1.82%
Atmospheric Science, 181, 1.74%
Atmospheric Science
181 publications, 1.74%
General Medicine, 175, 1.68%
General Medicine
175 publications, 1.68%
Aerospace Engineering, 170, 1.63%
Aerospace Engineering
170 publications, 1.63%
Atomic and Molecular Physics, and Optics, 163, 1.56%
Atomic and Molecular Physics, and Optics
163 publications, 1.56%
Multidisciplinary, 162, 1.55%
Multidisciplinary
162 publications, 1.55%
Physics and Astronomy (miscellaneous), 139, 1.33%
Physics and Astronomy (miscellaneous)
139 publications, 1.33%
Electronic, Optical and Magnetic Materials, 110, 1.06%
Electronic, Optical and Magnetic Materials
110 publications, 1.06%
Instrumentation, 108, 1.04%
Instrumentation
108 publications, 1.04%
Mathematical Physics, 97, 0.93%
Mathematical Physics
97 publications, 0.93%
Applied Mathematics, 97, 0.93%
Applied Mathematics
97 publications, 0.93%
Computational Mathematics, 86, 0.83%
Computational Mathematics
86 publications, 0.83%
Radiation, 68, 0.65%
Radiation
68 publications, 0.65%
Modeling and Simulation, 68, 0.65%
Modeling and Simulation
68 publications, 0.65%
Geology, 67, 0.64%
Geology
67 publications, 0.64%
General Materials Science, 64, 0.61%
General Materials Science
64 publications, 0.61%
Geochemistry and Petrology, 60, 0.58%
Geochemistry and Petrology
60 publications, 0.58%
General Engineering, 50, 0.48%
General Engineering
50 publications, 0.48%
Earth and Planetary Sciences (miscellaneous), 49, 0.47%
Earth and Planetary Sciences (miscellaneous)
49 publications, 0.47%
Mechanical Engineering, 33, 0.32%
Mechanical Engineering
33 publications, 0.32%
Control and Systems Engineering, 28, 0.27%
Control and Systems Engineering
28 publications, 0.27%
Earth-Surface Processes, 23, 0.22%
Earth-Surface Processes
23 publications, 0.22%
Statistical and Nonlinear Physics, 21, 0.2%
Statistical and Nonlinear Physics
21 publications, 0.2%
1000
2000
3000
4000
5000
6000
7000

Journals

500
1000
1500
2000
2500
Astrophysical Journal
2300 publications, 22.07%
Publication of the Astronomical Society of Japan
1317 publications, 12.64%
Monthly Notices of the Royal Astronomical Society
964 publications, 9.25%
Astronomy and Astrophysics
557 publications, 5.34%
Proceedings of SPIE - The International Society for Optical Engineering
532 publications, 5.11%
Proceedings of the International Astronomical Union
432 publications, 4.15%
Astrophysical Journal Letters
339 publications, 3.25%
Astronomical Journal
258 publications, 2.48%
Physical Review D
238 publications, 2.28%
Symposium - International Astronomical Union
165 publications, 1.58%
Advances in Space Research
160 publications, 1.54%
Solar Physics
150 publications, 1.44%
Astrophysical Journal, Supplement Series
136 publications, 1.31%
Astrophysics and Space Science Library
122 publications, 1.17%
Journal of Physics: Conference Series
105 publications, 1.01%
International Astronomical Union Colloquium
92 publications, 0.88%
Nature
76 publications, 0.73%
Nature Astronomy
72 publications, 0.69%
Monthly Notices of the Royal Astronomical Society: Letters
72 publications, 0.69%
Physical Review C
69 publications, 0.66%
Earth, Planets and Space
68 publications, 0.65%
Celestial Mechanics and Dynamical Astronomy
67 publications, 0.64%
Astrophysics and Space Science
65 publications, 0.62%
Science
62 publications, 0.59%
Journal of Low Temperature Physics
58 publications, 0.56%
Red Giants as Probes of the Structure and Evolution of the Milky Way
50 publications, 0.48%
IEEE Transactions on Applied Superconductivity
48 publications, 0.46%
Applied Optics
46 publications, 0.44%
Classical and Quantum Gravity
46 publications, 0.44%
Icarus
45 publications, 0.43%
500
1000
1500
2000
2500

Publishers

500
1000
1500
2000
2500
3000
American Astronomical Society
2842 publications, 27.27%
Oxford University Press
2465 publications, 23.65%
Springer Nature
1044 publications, 10.02%
Cambridge University Press
765 publications, 7.34%
EDP Sciences
611 publications, 5.86%
SPIE-Intl Soc Optical Eng
574 publications, 5.51%
Elsevier
468 publications, 4.49%
IOP Publishing
461 publications, 4.42%
American Physical Society (APS)
360 publications, 3.45%
Institute of Electrical and Electronics Engineers (IEEE)
122 publications, 1.17%
Wiley
113 publications, 1.08%
AIP Publishing
89 publications, 0.85%
Optica Publishing Group
83 publications, 0.8%
American Association for the Advancement of Science (AAAS)
73 publications, 0.7%
MDPI
50 publications, 0.48%
World Scientific
32 publications, 0.31%
Japan Society for Aeronautical and Space Sciences
32 publications, 0.31%
American Geophysical Union
24 publications, 0.23%
The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)
17 publications, 0.16%
Taylor & Francis
12 publications, 0.12%
Pleiades Publishing
12 publications, 0.12%
Japan Academy
11 publications, 0.11%
The Laser Society of Japan
11 publications, 0.11%
Frontiers Media S.A.
9 publications, 0.09%
Mary Ann Liebert
9 publications, 0.09%
Japan Society of Applied Physics
9 publications, 0.09%
Seismological Society of Japan
8 publications, 0.08%
Hindawi Limited
7 publications, 0.07%
Japan Society of Mechanical Engineers
6 publications, 0.06%
Science in China Press
6 publications, 0.06%
500
1000
1500
2000
2500
3000

With other organizations

500
1000
1500
2000
2500
3000
3500
4000
University of Tokyo
3549 publications, 34.06%
The Graduate University for Advanced Studies
1872 publications, 17.96%
Kyoto University
1325 publications, 12.71%
Nagoya University
1073 publications, 10.3%
Japan Aerospace Exploration Agency
1035 publications, 9.93%
Tohoku University
752 publications, 7.22%
Institute of Astronomy and Astrophysics, Academia Sinica
693 publications, 6.65%
California Institute of Technology
646 publications, 6.2%
Center for Astrophysics | Harvard & Smithsonian
520 publications, 4.99%
National Institute for Astrophysics
504 publications, 4.84%
Tokyo Institute of Technology
504 publications, 4.84%
RIKEN-Institute of Physical and Chemical Research
438 publications, 4.2%
Korea Astronomy and Space Science Institute
398 publications, 3.82%
Max Planck Institute for Astronomy
394 publications, 3.78%
Kagoshima University
394 publications, 3.78%
National Radio Astronomy Observatory
378 publications, 3.63%
Goddard Space Flight Center
359 publications, 3.44%
Instituto de Astrofísica de Canarias
358 publications, 3.44%
Leiden University
355 publications, 3.41%
Princeton University
354 publications, 3.4%
Hiroshima University
353 publications, 3.39%
University of Arizona
351 publications, 3.37%
Hokkaido University
350 publications, 3.36%
Space Telescope Science Institute
337 publications, 3.23%
European Southern Observatory
334 publications, 3.21%
Osaka University
333 publications, 3.2%
Osaka Metropolitan University
317 publications, 3.04%
Jet Propulsion Laboratory
294 publications, 2.82%
University of Texas at Austin
287 publications, 2.75%
University of Tsukuba
284 publications, 2.73%
500
1000
1500
2000
2500
3000
3500
4000

With foreign organizations

100
200
300
400
500
600
700
Institute of Astronomy and Astrophysics, Academia Sinica
693 publications, 6.65%
California Institute of Technology
646 publications, 6.2%
Center for Astrophysics | Harvard & Smithsonian
520 publications, 4.99%
National Institute for Astrophysics
504 publications, 4.84%
Korea Astronomy and Space Science Institute
398 publications, 3.82%
Max Planck Institute for Astronomy
394 publications, 3.78%
National Radio Astronomy Observatory
378 publications, 3.63%
Goddard Space Flight Center
359 publications, 3.44%
Instituto de Astrofísica de Canarias
358 publications, 3.44%
Leiden University
355 publications, 3.41%
Princeton University
354 publications, 3.4%
University of Arizona
351 publications, 3.37%
Space Telescope Science Institute
337 publications, 3.23%
European Southern Observatory
334 publications, 3.21%
Jet Propulsion Laboratory
294 publications, 2.82%
University of Texas at Austin
287 publications, 2.75%
University of California, Berkeley
279 publications, 2.68%
Observatoire de Paris
279 publications, 2.68%
Shanghai Astronomical Observatory, Chinese Academy of Sciences
273 publications, 2.62%
Sorbonne University
270 publications, 2.59%
Paris Cité University
269 publications, 2.58%
University of La Laguna
267 publications, 2.56%
University College London
266 publications, 2.55%
Massachusetts Institute of Technology
261 publications, 2.5%
National Astronomical Observatories, Chinese Academy of Sciences
259 publications, 2.49%
University of Hawaiʻi at Mānoa
255 publications, 2.45%
Seoul National University
247 publications, 2.37%
Max Planck Institute for Radio Astronomy
242 publications, 2.32%
Universidad de Chile
242 publications, 2.32%
Peking University
236 publications, 2.26%
100
200
300
400
500
600
700

With other countries

500
1000
1500
2000
2500
3000
3500
4000
USA, 3748, 35.97%
USA
3748 publications, 35.97%
Germany, 1341, 12.87%
Germany
1341 publications, 12.87%
China, 1334, 12.8%
China
1334 publications, 12.8%
United Kingdom, 1321, 12.68%
United Kingdom
1321 publications, 12.68%
France, 863, 8.28%
France
863 publications, 8.28%
Italy, 717, 6.88%
Italy
717 publications, 6.88%
Australia, 685, 6.57%
Australia
685 publications, 6.57%
Republic of Korea, 639, 6.13%
Republic of Korea
639 publications, 6.13%
Spain, 620, 5.95%
Spain
620 publications, 5.95%
Chile, 548, 5.26%
Chile
548 publications, 5.26%
Netherlands, 529, 5.08%
Netherlands
529 publications, 5.08%
Canada, 450, 4.32%
Canada
450 publications, 4.32%
Switzerland, 349, 3.35%
Switzerland
349 publications, 3.35%
Sweden, 287, 2.75%
Sweden
287 publications, 2.75%
Russia, 268, 2.57%
Russia
268 publications, 2.57%
India, 267, 2.56%
India
267 publications, 2.56%
Denmark, 236, 2.26%
Denmark
236 publications, 2.26%
Mexico, 218, 2.09%
Mexico
218 publications, 2.09%
Belgium, 172, 1.65%
Belgium
172 publications, 1.65%
Poland, 161, 1.54%
Poland
161 publications, 1.54%
South Africa, 157, 1.51%
South Africa
157 publications, 1.51%
Finland, 148, 1.42%
Finland
148 publications, 1.42%
Hungary, 107, 1.03%
Hungary
107 publications, 1.03%
Brazil, 99, 0.95%
Brazil
99 publications, 0.95%
Israel, 82, 0.79%
Israel
82 publications, 0.79%
Austria, 75, 0.72%
Austria
75 publications, 0.72%
Czech Republic, 75, 0.72%
Czech Republic
75 publications, 0.72%
Norway, 71, 0.68%
Norway
71 publications, 0.68%
Ireland, 66, 0.63%
Ireland
66 publications, 0.63%
500
1000
1500
2000
2500
3000
3500
4000
  • We do not take into account publications without a DOI.
  • Statistics recalculated daily.
  • Publications published earlier than 1968 are ignored in the statistics.
  • The horizontal charts show the 30 top positions.
  • Journals quartiles values are relevant at the moment.