Sort hul

Sort hul
(astronomi)
Et sort hul er en samling af masse så stor/tæt, så end ikke elektromagnetiske bølger (for eksempel radiobølger og lys) kan udsendes fra dens "overflade".
Sorte huller deles i to grupper:
1. Sorte huller med masser som stjerners.
2. Sorte huller som har masser som milliarder stjerner kaldes massive sorte huller (MBH). De formodes at være i centrum af aktive galakser (AGN) og kvasarer og almindelige galakser.

Danske encyklopædi.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Aktiv galakse — I en aktiv galakse antages der at være et sort hul med en masse som milliarder af stjerners. Herudover har aktive galakser stjerner ligesom galakser. En aktiv galakse sender mere energi ud fra f.eks. kernen, end summen af dennes stjerners minus… …   Danske encyklopædi

  • BIBLE — THE CANON, TEXT, AND EDITIONS canon general titles the canon the significance of the canon the process of canonization contents and titles of the books the tripartite canon …   Encyclopedia of Judaism

  • WEIGHTS AND MEASURES — From the earliest period of their history the Jews were alive to the necessity of an accurate system of weights and measures, and an honest handling of them. The first legislation in the interest of economic righteousness in general is found in… …   Encyclopedia of Judaism

  • Google Books Library Project — The Google Books Library Project is an effort by Google to scan and make searchable the collections of several major libraries. Along with bibliographic information, snippets of text from a book is often viewable. Books out of copyright might… …   Wikipedia

  • DISPUTATIONS AND POLEMICS — in the pagan environment the christian environment and mission dialogue with tryphon celsus in the christian and muslim medieval milieu gregory of tours and priscus gilbert crispin christian religious drama chronicle of ahimaaz 12TH CENTURY in… …   Encyclopedia of Judaism

  • TEMPLE — The article is arranged according to the following outline: first temple history structure the ground plan of the temple the detailed plan of the temple general description the porch THE MAIN ROOM (HEKHAL) OR HOLY PLACE …   Encyclopedia of Judaism

  • Jewish cuisine — is a collection of international cookery traditions linked by Jewish dietary laws (kashrus) and Jewish holiday traditions. Certain foods, notably pork and shellfish, are forbidden; meat and dairy are not combined, and meat must be ritually… …   Wikipedia

  • MUSIC — This article is arranged according to the following outline: introduction written sources of direct and circumstantial evidence the material relics and iconography notated sources oral tradition archives and important collections of jewish music… …   Encyclopedia of Judaism

  • HARRAN — HARRA Ancien centre commercial de la Mésopotamie septentrionale, sur le Balikh, au croisement des routes caravanières qui menaient de Babylone en Syrie, en Égypte et en Asie Mineure. Harran et son temple consacré à Sin, le dieu Lune, sont… …   Encyclopédie Universelle

  • ELIEZER BEN HYRCANUS — (end of the first and beginning of the second century C.E.), tanna. He is sometimes called Eliezer the Great (Sot. 9:15; Tosef., Or., end) and is the Eliezer mentioned without patronymic. R. Eliezer was one of the pillars of the early talmudic… …   Encyclopedia of Judaism

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”