NGC 1316
- NGC 1316 is a morphologically disturbed elliptical galaxy on the
outskirts of the Fornax Cluster. The numerous low surface brightness
tidal tails, shells and plumes are caused by ongoing low mass mergers,
more clearly seen in the Optical (Model Subtracted) image. In this
image we have modelled the underlying elliptical light and removed it
to better show the low surface brightness features. The Optical Line
Emission image shows Halpha+[NII] emission from the nuclei of NGC 1316
and NGC 1317, plus emission at large radii, that is probably shocked
cold gas related to ongoing low mass mergers.
The galaxy is also a radio source (Fornax A) and has two radio lobes
well outside of the optical galaxy but emanating from the galaxy
nucleus. NGC 1317 is the small galaxy to the N of NGC 1316.
An image of each wavelength region can be viewed by clicking
on each small image below. The X-ray and Optical Line Emission images also
have a contour outline that shows the edge of the optical galaxy for comparison.
Image information
- X-ray: ROSAT PSPC, (0.1-2.4 keV), Observer: E. Feigelson
(Feigelson et al. 1995, ApJ, 449, 149.)
- Optical: CTIO Curtis Schmidt, B band and Halpha+[NII], Observer: G. Mackie
(Mackie and Fabbiano, 1998, AJ, 115, 514.)
............ X-ray ......... Optical ...... Optical (Model Subtracted) ..
............................ Optical Line Emission ....................
