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A blazar is an active galactic nucleus (AGN) with a relativistic jet (a jet composed of ionized matter traveling at nearly the speed of light) directed very nearly towards an observer. Relativistic beaming of electromagnetic radiation from the jet makes blazars appear much brighter than they would be if the jet were pointed in a direction away ...
3C 454.3 is a blazar (a type of quasar with a jet oriented toward Earth) located away from the galactic plane.It is one of the brightest gamma ray sources in the sky, [2] and is one of the most luminous astronomical object ever observed, with a maximum absolute magnitude of -31.4. [3]
3C 66A is a blazar [1] [2] located in the constellation Andromeda.. The "distance" of a far away galaxy depends on the distance measurement used. With a redshift of 0.444, [1] [2] light from this active galaxy is estimated to have taken around 4.5 billion years to reach Earth. [2]
B2 1308+326 known as OP 313 or AU CVn, is a BL Lacertae object [1] located in the constellation of Canes Venatici. It has a redshift of (z) 0.997 [2] and was initially discovered as a variable star in 1959 before being identified with its optical counterpart in 1972. [3] Its radio spectrum is flat, making it a FRSQ (flat-spectrum radio quasar ...
This page was last edited on 26 October 2024, at 12:04 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Markarian 421 (Mrk 421, Mkn 421) is a blazar located in the constellation Ursa Major. The object is an active galaxy and a BL Lacertae object, and is a strong source of gamma rays. It is about 397 million light-years (redshift: z=0.0308 eq. 122Mpc) [2] to 434 million light-years (133Mpc) [3] from the Earth.
1ES 1101-232 is an active galactic nucleus of a distant galaxy known as a blazar. [1] It is also a BL Lac object. [2]An X-ray source (catalogued as A 1059-22) was first recorded by Maccagni and colleagues in a 1978 paper; they thought the source arose from a galaxy in the Abell 1146 galaxy cluster, which contained many giant elliptical galaxies. [3]
BL Lac objects are also categorized as a type of blazar. BL Lacertae changes in apparent magnitude over fairly small time periods, typically between values of 14 and 17. In January 2021, it exhibited extreme flaring behavior and was reported to reach magnitude 11.45 in the R filter band. [5]