BL Lac object
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BL Lac object — A BL Lacertae object or BL Lac object is a type of active galaxy with an active galactic nucleus (AGN) and is named after its prototype, BL Lacertae. In contrast to other types of active galactic nuclei, BL Lacs are characterized by rapid and… … Wikipedia
bl lac object — noun see bl lacertae object … Useful english dictionary
Lac-Operon — Das Lactose Operon, kurz lac Operon, ist ein Operon, das sowohl beim Transport, als auch beim Abbau von Lactose in Bakterien, beispielsweise Escherichia coli, eine wichtige Rolle spielt. Inhaltsverzeichnis 1 Aufbau des Operons 2 Regulation des… … Deutsch Wikipedia
Lac Chauvet — Pour les articles homonymes, voir Chauvet. Lac Chauvet Administration Pays … Wikipédia en Français
BL Lac — can mean two things: *BL Lacertae, an active galaxy, prototype of the BL Lacertae objects *BL Lac object, a type of active galaxy, based on the prototype BL Lacertae galaxy … Wikipedia
bl lacertae object — ləˈsərtē , d.ē noun also bl lac object ˈlak Usage: usually capitalized B & both Ls Etymology: BLatin Lacertae, original designation for the first such object to be discovered, from BLatin, designation for the 89th variable star in a constellation … Useful english dictionary
Active galactic nucleus — An active galactic nucleus (AGN) is a compact region at the centre of a galaxy which has a much higher than normal luminosity over some or all of the electromagnetic spectrum (in the radio, infrared, optical, ultra violet, X ray and/or gamma ray… … Wikipedia
Список галактик — Hubble Ultra Deep Field показывает более чем 10 000 галактик в 0,000024 % неба … Википедия
Blazar — A blazar is a very compact and highly variable energy source associated with a presumed supermassive black hole at the center of a host galaxy. Blazars are among the most violent phenomena in the universe and are an important topic in… … Wikipedia
OJ 287 — Observation data (Epoch J2000) Constellation Cancer Right ascension 08h 54m 48.9s[1] … Wikipedia
