Astronomy and Astrophysics (often referred to as A&A) is a European Journal, publishing papers on theoretical, observational and instrumental astronomy and astrophysics. It was published by Springer-Verlag from 1969-2000, while EDP Sciences published the companion A&A Supplement Series. In 2000, the two journals merged, with the combined journal known simply as Astronomy and Astrophysics, and published by EDP Sciences.
A&A is one of the major journals of astronomy, alongside the Astrophysical Journal, Astronomical Journal and the Monthly Notices of the Royal Astronomical Society. While the first two are often the preferred journal of US-based researchers and the MNRAS is often the favoured journal for UK-based astronomers, A&A tends to be the preferred journal of astronomers based in Europe (excluding the UK).
External links
A&A home page (http://www.edpsciences.org/journal/index.cfm?edpsname=aa)