Ten years of the Astrophysics Data System
2004; Oxford University Press; Volume: 45; Issue: 3 Linguagem: Inglês
10.1046/j.1468-4004.2003.45307.x
ISSN1468-4004
Autores Tópico(s)Astronomical Observations and Instrumentation
ResumoThe Astrophysics Data System (ADS) has been on-line on the web now for 10 years. It is the search system of choice for astronomers worldwide. The searchable database contains more than 3.7 million bibliographic records. In addition the ADS has almost 2.6 million scanned article pages from more than 340000 articles, dating back as far as 1821. There are currently more than 10000 regular users (more than 10 queries/month). ADS users issue 2 million queries per month and receive 30 million records and 1.5 million scanned article pages per month. One important aspect of the ADS is the system of links to other data providers: there are currently 6.8 million links to other on-line resources. The ADS is accessed from almost 100 countries with a wide range of the number of queries per country. In order to improve access from different parts of the world, there are 11 mirror sites of the ADS in Argentina, Brazil, Chile, China, England, France, Germany, India, Japan, Russia, and South Korea. Automatic procedures facilitate keeping these mirror sites up-todate over the network. The ADS is funded by NASA Grant NCC5-189. The ADS is available at ads.harvard.edu.
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