NGC 326
Radio galaxy in the constellation Pisces
From Wikipedia, the free encyclopedia
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]
| 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 | 00h 58m 22.7s[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 3482, PKS B0055+265, TXS 0055+265.[1] | |
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]
