Astrophysics Data System: Difference between revisions

Revision as of 14:03, 22 August 2023

Revision as of 21:51, 25 August 2023

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| web = {{nowrap|{{URL|www.adsabs.harvard.edu}}}}

| titles =

}}The '''SAO/NASA Astrophysics Data System''' ('''ADS''') is an online database of over 16 million [[astronomy]] and [[physics]] papers fromthat are both from [[peer review]]ed and non-peer reviewed sources. [[abstract (summary)|Abstracts]] are available online for free for almost all articles, and fully scanned articles are available in [[Graphics Interchange Format]] (GIF), and [[Portable Document Format]] (PDF) for older articles. It was developed by the [[National Aeronautics and Space Administration]] (NASA) and it is managed by the [[Smithsonian Astrophysical Observatory]].

ADS is a powerful research tool with significant impact on the efficiency of astronomical research since it was launchedstarted in 1992.<ref name="announcement">{{cite journal | last= Kurtz |first= M.J. |display-authors = et al.| year= 1992 | title= Intelligent Text Retrieval in the NASA Astrophysics Data System|journal= Astronomical Data Analysis Software and Systems Ii |volume= 52 |page= 132 | bibcode=1993ASPC...52..132K}}</ref> Literature searches, that would previously takingtake days or weeks to access,retrieve arethe carriedresult, outnow intake seconds via the ADS search engine, which is custom-built for astronomical needs. Studies have found that the monetary benefit to astronomy ofthat the ADS saves, is equivalent to several hundred million [[USD|US dollars]] annually (2005),<ref name="overview" /><ref name='impact'/>

ADS is used among astronomers worldwide, and therefore ADS usage statistics can be used to analyze global trends in astronomical research.

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===Title and abstract searches===

The search engine first filters search terms in several ways. An M followed by a space or [[hyphen]] has the space or hyphen removed, so that searching for [[Messier catalogue]] objects is simplified and a user input of M45, M 45 or M-45 all result in the same query being executed; similarly, [[New General Catalogue|NGC]] designations and common search terms such as [[Comet Shoemaker-Levy 9|Shoemaker Levy]] and [[T Tauri star|T Tauri]] are stripped of spaces. Unimportant words such as AT, OR and TO are stripped out, although in some cases [[case sensitivity]] is maintained, so that while '''a'''nd is ignored, '''A'''nd is converted to "[[Andromeda (constellation)|Andromeda]]e", and '''H'''er is converted to "[[Hercules (constellation)|HerculisHercules]]", but '''h'''er is ignored.<ref>{{cite web|url=http://doc.adsabs.harvard.edu/abs_doc/help_pages/search.html#Stop_Words

|title=SAO/NASA ADS HELP: Abstract Query Form – Stop|publisher=doc.adsabs.harvard.edu|access-date=2008-10-30}}</ref>