A publication founded in 1895 by G. E. Hale and James Edward Keeler (1857–1900), now issued by the American Astronomical Society three times a month. It publishes research papers in astronomy and, especially, astrophysics. Published with it is the Astrophysical Journal Letters, founded in 1958, which contains shorter and more topical papers. The Astrophysical Journal Supplement series, founded in 1954, appears monthly and carries longer and more technical papers.

http://iopscience.iop.org/0004-637X/ Official website with contents and abstracts of recent issues and free online access to older issues.