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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]
AO 0235+164 is a BL Lacertae object (BL Lac object) [1] located in the constellation of Aries, 7.5 billion light years from Earth.It has a redshift of 0.94. [2] It was first discovered as an astronomical radio source by astronomers between 1967 and 1970, [3] and formally identified with a red stellar object in 1975. [4]
4C +28.07 is a blazar [1] located in the constellation of Aries. It has a redshift of 1.213 [2] [3] and was first discovered in 1970 as a compact astronomical radio source during an interferometer observation and designated as CTD 20. [4] The radio spectrum of the source is considered flat, making it a flat-spectrum radio quasar.
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 ...
A BL Lacertae object or BL Lac object is a type of active galactic nucleus (AGN) or a galaxy with such an AGN, named after its prototype, BL Lacertae. In contrast to other types of active galactic nuclei, BL Lacs are characterized by rapid and large-amplitude flux variability and significant optical polarization. [ 1 ]
Below, you’ll find an assortment of images with hidden objects. Think of them as hidden picture games for all moods and seasons. Up the challenge by giving yourself only 45 seconds to spot each ...
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Markarian 501 (or Mrk 501) is a galaxy with a spectrum extending to the highest energy gamma rays. [4] It is a blazar or BL Lac object, which is an active galactic nucleus with a jet that is shooting towards the Earth.