NGC 383

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NGC 383
Central Disc of NGC 383.png
Hubble Legacy Archive image of NGC 383
Observation data (J2000 epoch)
Constellation Pisces
Right ascension 01h 07m 24.959s [1]
Declination +32° 24′ 45.21″ [1]
Redshift 0.017005 [1]
Distance 209,000,000 ly
64 Mpc [2]
Apparent magnitude  (V)13.4 [1]
Characteristics
Type S0 [1]
Apparent size  (V)2.34´X1.95´
Other designations
3C 31, NGC 383, UGC 689, LEDA 3982, 4C 32.05, QSO B0104+321

NGC 383 is a double radio galaxy [3] with a quasar-like appearance located in the constellation Pisces. 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 traveling at relatively high fractions of the speed of light. The relativistic electrons in the jets are detected as synchrotron radiation 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 synchrotron radiation extend for several thousand parsecs and then appear to dissipate at the ends in the form of streamers or filaments.

Contents

There are four other nearby galaxies NGC 379, NGC 380, NGC 385, and NGC 384 which are suspected of being closely associated with NGC 383, as well as several other galaxies at relatively close distance.

Two supernovae have been observed in NGC 383: SN 2015ar (type Ia, mag. 18.8) [4] and SN 2017hle (type Ia, mag. 18). [5]

Two jets coming from 3C 31. Radio galaxy 3C31.png
Two jets coming from 3C 31.

See also

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References

  1. 1 2 3 4 5 "NASA/IPAC Extragalactic Database". Results for QSO B0104+321. Retrieved 26 October 2006.
  2. ↑ "Distance Results for NGC 383". NASA/IPAC Extragalactic Database. Retrieved 31 March 2010.
  3. ↑ "NGC 383". SIMBAD . Centre de données astronomiques de Strasbourg.
  4. ↑ Transient Name Server entry for SN 2015ar. Retrieved 25 March 2023.
  5. ↑ Transient Name Server entry for SN 2017hle. Retrieved 25 March 2023.


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