Astronomy and astrophysics research

Institutions ranked by citations and citation impact

Institution and ranking			Total citations	
					1993-95

 1. NASA-Goddard Space Flight Center		2,521	
 2. Harvard-Smithsonian Ctr. for Astrophys.	2,182	
 3. Space Telescope Science Institute		2,103	
 4. UC Berkeley					2,022	
 5. University of Cambridge			1,988	
 6. Princeton University			1,651	
 7. Max Planck Inst. for Extraterr. Physics	1,553	
 8. Caltech					1,483	
 9. University of Arizona			1,297	
10. Institut d'Astrophysique Paris		1,219	
11. National Optical Astronomy Observ.		1,108	
12. UC Santa Cruz				1,028	
13. University of Wisconsin			  978	
14. MIT						  968	
15. Johns Hopkins University		 	  966	
16. Carnegie Observatories (Pasadena)		  922	
17. Royal Observatories (United Kingdom)	  895	
18. Institute for Advanced Study (Princeton)	  763	
19. University of Colorado			  761	
20. University of Texas, Austin			  741


Institution and ranking			Citation impact
					(citations/paper)

 1. Royal Observatories (United Kingdom)	24.86
 2. Princeton University			23.93
 3. Carnegie Observatories (Pasadena)		23.64
 4. University of Wisconsin			23.29
 5. MIT						23.05
 6. Institute for Advanced Study (Princeton)	22.44
 7. Institut d'Astrophysique Paris		21.77
 8. University of Cambridge			21.61
 9. Max Planck Inst. for Extraterr. Physics	21.57
10. UC Berkeley					21.51
11. UC Santa Cruz				21.42
12. Space Telescope Science Institute		21.03
13. NASA-Goddard Space Flight Center		20.66
14. University of Texas, Austin			20.03
15. University of Arizona			19.95
16. Harvard-Smithsonian Ctr. for Astrophys.	19.84
17. Caltech					19.26
18. University of Maryland			19.15
19. University of Chicago			18.97	
20. University of Hawaii			18.68

Reprinted from Science Watch, November/December 1996,      
copyright, 1996 Institute for Scientific Information, Philadelphia.

Analysis considers only "high-impact" papers (those receiving 
10 or more citations) published between 1993 and 1995. Institutions 
ranked include only those that published 30 or more high-impact 
papers in that three-year period. Citation impact is the 
total number of high-impact papers divided by the total number 
of citations received.