- Exotic star
An exotic star is a
compact starcomposed of something other than electrons, protons, and neutrons, balanced against gravitational collapseby degeneracy pressure. These include strange stars (composed of strange matter) and preon stars (composed of preons).
Exotic stars are largely theoretical, but observations released by the
Chandra X-Ray Observatoryon April 10, 2002detected two candidate strange stars, designated RX J1856.5-3754and 3C58, which had previously been thought to be neutron stars. Based on the known laws of physics, the former appeared much smaller and the latter much colder than they should, suggesting that they are composed of material denser than neutronium. However, these observations have been under attack by researchers who say the results were not conclusive.
* Fredrik Sandin, " [http://epubl.luth.se/1402-1757/2005/25/LTU-LIC-0525-SE.pdf Exotic Phases of Matter in Compact Stars] ". (
May 8, 2005)
Wikimedia Foundation. 2010.
Look at other dictionaries:
Star Trek VI: The Undiscovered Country — Theatrical release poster by John Alvin Directed by Nicholas Meyer … Wikipedia
Exotic Tour — Gira de Depeche Mode Lugar(es) Sudáfrica, Pacífico, Norte, Centro y Sudamérica Álbum(es) Songs of Faith and Devotion Fecha de inicio 9 de febrero de 1994 Fecha de final … Wikipedia Español
Star cluster — Star clusters are groups of stars which are gravitationally bound. Two distinct types of star cluster can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars, while open clusters generally contain less… … Wikipedia
Exotic Birds — The Exotic Birds was a synthpop music group formed in Cleveland, Ohio in 1983 by three Cleveland Institute of Music percussion students, Andy Kubiszewski, Tom Freer and Tim Adams. They wrote their own music and were described as synth pop and… … Wikipedia
Exotic Dancer (horse) — Thoroughbred racehorse infobox horsename = Exotic Dancer caption = sire = Turgeon grandsire = Caro dam = Northine damsire = Northern Treat sex = Gelding foaled = 2000 country = France flagicon|France colour = Bay breeder = Gaetan Gilles Ecurie… … Wikipedia
Star — For other uses, see Star (disambiguation) … Wikipedia
Exotic pet — Capuchin monkeys are among the primates kept as exotic pets An exotic pet is a rare or unusual animal pet, or an animal kept as a pet which is not commonly thought of as a pet. The definition is an evolving one; some rodents, reptiles, and… … Wikipedia
Star Trek — Infobox Media franchises head color= label color= title=Star Trek imagesize=225 image caption=The current Star Trek franchise logo, featuring James T. Kirk (left) and Spock creator=Gene Roddenberry origin= (1966) Star Trek is an American science… … Wikipedia
Star designation — Designations of stars (and other celestial bodies) are done by the International Astronomical Union (IAU). Many of the star names in use today were inherited from the time before the IAU existed. Other names, mainly for variable stars (including… … Wikipedia
Star system — This article is about stars in outer space. For the Hollywood star system, see Star system (film). For a system of planets around a star, see Planetary system. A star system or stellar system is a small number of stars which orbit each other,… … Wikipedia