NGC 326

NGC 326
HST image of NGC 326
Observation data (J2000 epoch)
Constellation Pisces
Right ascension 00h 58m 22.7s[1]
Declination +26° 51′ 55″[1]
Redshift 0.047400[1]
Helio radial velocity 14,210 km/s[1]
Apparent magnitude (V) 14.33[1]
Characteristics
Type E
Apparent size (V) 1.4' × 1.4'[1]
Other designations
UGC 00601, CGCG 480-026, MCG +04-03-025, 4C +26.03, B2 0055+26, PGC 3326, PKS B0055+265, TXS 0055+265.[1]

NGC 326 is an elliptical galaxy in the constellation Pisces. It was discovered on August 24, 1865 by Heinrich d'Arrest. It was described by Dreyer as "faint, a little extended, 9th or 10th magnitude star to southeast."[2]

Background

X-shaped (or "winged") radio galaxies are a class of extragalactic radio source that exhibit two, low-surface-brightness radio lobes (the "wings") oriented at an angle to the active, or high-surface-brightness, lobes. Both sets of lobes pass symmetrically through the center of the elliptical galaxy that is the source of the lobes, giving the radio galaxy an X-shaped morphology as seen on radio maps.[3]

Study of the galaxy

NGC 326 is a radio galaxy; in fact, it is one of the most prominent X-shaped galaxies ever observed. Several studies have been conducted to try to explain its morphology through either fluid motion or reorientation of the jet axis. The Chandra X-ray Observatory examined the emissions of the galaxy. The study revealed several features, including a high-temperature front that might indicate a shock, high-temperate knots around the rim of the radio emission, and a cavity associated with the eastern wing.[3][4]

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 0326. Retrieved September 2, 2016.
  2. ↑ "New General Catalog Objects: NGC 300 - 349". Cseligman. Retrieved October 30, 2016.
  3. 1 2 "Study of X-Shaped Radio Galaxy NGC 326 Shows Outburst History and Active Galactic Nucleus Feedback". Scitechdaily. February 6, 2012. Retrieved October 30, 2016.
  4. ↑ Hodges-Kluck, Edmund; Reynolds, Christopher S (December 12, 2011). "A Chandra Study of the Radio Galaxy NGC 326: Wings, Outburst History, and AGN Feedback". The Astrophysical Journal. 746 (2): 167. arXiv:1112.2707. Bibcode:2012ApJ...746..167H. doi:10.1088/0004-637X/746/2/167.


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