NGC 383 is a double

radio galaxy A radio galaxy is a galaxy with giant regions of radio emission extending well beyond its visible structure. These energetic radio lobes are powered by jets from its active galactic nucleus. They have luminosities up to 1039 W at radio wa ...

with a

quasar A quasar is an extremely Luminosity, luminous active galactic nucleus (AGN). It is pronounced , and sometimes known as a quasi-stellar object, abbreviated QSO. This emission from a galaxy nucleus is powered by a supermassive black hole with a m ...

-like appearance located in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

Pisces Pisces may refer to: * Pisces, an obsolete (because of land vertebrates) taxonomic superclass including all fish * Pisces (astrology), an astrological sign * Pisces (constellation), a constellation **Pisces Overdensity, an overdensity of stars in ...

. It is listed in Halton C. Arp's 1966 "The Arp Atlas of Peculiar Galaxies." Recent discoveries by the National Radio Astronomy Observatory in 2006 reveal that NGC 383 is being bisected by high energy

relativistic jets An astrophysical jet is an astronomical phenomenon where outflows of ionised matter are emitted as an extended beam along the axis of rotation. When this greatly accelerated matter in the beam approaches the speed of light, astrophysical jets beco ...

traveling at relatively high fractions of the speed of light. The relativistic electrons in the jets are detected as

synchrotron radiation Synchrotron radiation (also known as magnetobremsstrahlung radiation) is the electromagnetic radiation emitted when relativistic charged particles are subject to an acceleration perpendicular to their velocity (). It is produced artificially in ...

in the x-ray and radio wavelengths. The focus of this intense energy is the galactic center of NGC 383. The relativistic electron jets detected as

extend for several thousand parsecs and then appear to dissipate at the ends in the form of streamers or filaments. There are four other nearby galaxies

NGC 379 NGC 379 is a lenticular galaxy in the constellation Pisces. It was discovered on September 12, 1784 by William Herschel. It was described by Dreyer Dreyer is a common German surname originating from Grübe in Holstein Germany. Notable people wi ...

, NGC 380, NGC 385, and

NGC 384 NGC 384 is an elliptical galaxy located in the constellation Pisces (constellation), Pisces. It was discovered on November 4, 1850 by Bindon Blood Stoney, Bindon Stoney. It was described by John Louis Emil Dreyer, Dreyer as "pretty faint, pretty ...

which are suspected of being closely associated with NGC 383, as well as several other galaxies at relatively close distance. A

Type 1a supernova A Type Ia supernova (read: "type one-A") is a type of supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white ...

, SN 2015ar, was discovered in NGC 383 in November 2015. Radio galaxy 3C31

References

External links

*
3C31 = B0104+321
(Alan Bridle / 18 June 2008)

* Wikisk
image
of NGC 383 {{DEFAULTSORT:NGC 0383 Radio galaxies 0383 00689 31 Pisces (constellation) 17840912

See also

References

External links