3C 295

Infobox Galaxy
name=3C 295


epoch=J2000
ra=RA|14|11|20.6cite web
title=NASA/IPAC Extragalactic Database
work=Results for 3C 295
url=http://nedwww.ipac.caltech.edu/
accessdate=2007-04-19]
dec=DEC|+52|12|21
constellation name= Boötes
z=0.4641
dist_ly=5 Gly
type=Radio galaxy
appmag_v=
size_v=2 Mly diameter

3C 295 is a narrow-line radio galaxy located in the constellation of Boötes. With a redshift of .4641, it is approximately 5 billion light-years away from Earth).

History

The number in its name corresponds with it being the 295^th object in the Third Cambridge Catalogue of Radio Sources (which are ordered by right ascension). This is also where the prefix 3C came from.

The radio galaxy itself is a fairly normal small radio galaxy although unusually its hotspots are readily detected in optical and X-ray emission.galaxies or more, making it one of the most massive objects in the known Universe. However, x-ray data showed that there is not enough mass to hold 3C295 together gravitationally, which suggests the presence of dark matter.cite web
last=Nemiroff
first=Robert
coauthors=Jerry Bonnell
url=http://apod.nasa.gov/apod/ap991125.html
title=3C 295: X-rays From A Giant Galaxy
accessdate=2007-04-20]

References