| 词条 | NGC 326 |
| 释义 |
| image = NGC326-HST-R814GB555.jpg | image_size = 250px | caption = HST image of NGC 326 | name = NGC 326 | epoch = J2000 | ra = {{RA|00|58|22.7}}[1] | dec = {{DEC|+26|51|55}}[1] | constellation name = Pisces | z = 0.047400[1] | h_radial_v = 14,210 km/s[1] | type = E | appmag_v = 14.33[1] | size_v = 1.4' × 1.4'[1] | notes = | names = 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] BackgroundX-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 galaxyNGC 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] References1. ^1 2 3 4 5 6 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 0326 | url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+326&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES | accessdate=September 2, 2016}} {{Ngc5}}{{galaxy-stub}}2. ^{{cite web|title=New General Catalog Objects: NGC 300 - 349|url=http://cseligman.com/text/atlas/ngc3.htm#326|publisher=Cseligman|accessdate=October 30, 2016}} 3. ^1 {{cite web|title=Study of X-Shaped Radio Galaxy NGC 326 Shows Outburst History and Active Galactic Nucleus Feedback|url=http://scitechdaily.com/study-of-x-shaped-radio-galaxy-ngc-326-shows-outburst-history-and-active-galactic-nucleus-feedback/|publisher=Scitechdaily|date=February 6, 2012|accessdate=October 30, 2016}} 4. ^{{Cite journal|title=A Chandra Study of the Radio Galaxy NGC 326: Wings, Outburst History, and AGN Feedback|journal=The Astrophysical Journal|volume=746|issue=2|pages=167|arxiv=1112.2707|date=December 12, 2011|last1=Hodges-Kluck|first1=Edmund|last2=Reynolds|first2=Christopher S|doi=10.1088/0004-637X/746/2/167|bibcode=2012ApJ...746..167H}} 5 : NGC objects|Astronomical objects discovered in 1865|Pisces (constellation)|Radio galaxies|Discoveries by Heinrich d'Arrest |
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