NGC 326

Radio galaxy in the constellation Pisces

NGC 326
NGC 326 with DECam and with the Very Large Array radio sky survey called VLASS (orange part)
Observation data (J2000 epoch)
Constellation	Pisces
Right ascension	00^h 58^m 22.7^s^[1]
Declination	+26° 51′ 55″^[1]
Redshift	0.047400^[1]
Heliocentric 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 a dumbbell 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

^ ^a ^b ^c ^d ^e ^f ^g "NASA/IPAC Extragalactic Database". Results for NGC 0326. Retrieved September 2, 2016.
^ "New General Catalog Objects: NGC 300 - 349". Cseligman. Retrieved October 30, 2016.
^ ^a ^b "Study of X-Shaped Radio Galaxy NGC 326 Shows Outburst History and Active Galactic Nucleus Feedback". Scitechdaily. February 6, 2012. Retrieved October 30, 2016.
^ 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. S2CID 119162407.