The Astrophysical Journal is one of the foremost research journals devoted to recent developments, discoveries, and theories in astronomy and astrophysics. Many of the classic discoveries of the 20th century have first been reported in the Journal, which has also presented much of the important recent work on quasars, pulsars, neutron stars, black holes, solar and stellar magnetic fields, X-rays, and interstellar matter. The journal was founded in 1895 by George E. Hale and James E. Keeler. Since 1953 The Astrophysical Journal Supplement Series has been published in conjunction with The Astrophysical Journal, designed to bring substantial, extensive support to the material found in the Journal, the Supplement Series contains many of the most frequently cited papers in astronomical literature. In academic publishing, a scientific journal is a periodical publication intended to further the progress of science, usually by reporting new research. ... The word theory has a number distinct meanings depending on the context. ... Astronomy (Greek: αστρονομία = άστρον + νόμος, literally, law of the stars) is the science involving the observation and explanation of events occurring beyond the Earth and its atmosphere. ... Spiral Galaxy ESO 269-57 Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties ( luminosity, density, temperature and chemical composition) of astronomical objects such as stars, galaxies, and the interstellar medium, as well as their interactions. ... (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999 in the... This view, taken with infrared light, is a false-color image of a quasar-starburst tandem with the most luminous starburst ever seen in such a combination. ... Composite Optical/X-ray image of the Crab Nebula pulsar, showing surrounding nebular gases stirred by the pulsars magnetic field and radiation. ... This article is about the celestial body. ... An artists impression of a black hole with a closely orbiting companion star that exceeds its Roche limit. ... In physics, a magnetic field is an entity produced by moving electric charges (electric currents) that exerts a force on other moving charges. ... In the NATO phonetic alphabet, X-ray represents the letter X. An X-ray picture (radiograph) taken by Röntgen An X-ray is a form of electromagnetic radiation with a wavelength approximately in the range of 5 pm to 10 nanometers (corresponding to frequencies in the range 30 PHz... The interstellar medium (or ISM) is a term used in astronomy to describe the matter and energy content that exists between the stars (or their immediate circumstellar environment) within a galaxy. ... 1895 was a common year starting on Tuesday (see link for calendar). ... George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astronomer. ... James Edward Keeler (September 10, 1857 – August 12, 1900) was an American astronomer. ... 1953 is a common year starting on Thursday. ...

External links

• The Astrophysical Journal (http://www.journals.uchicago.edu/ApJ/)