Research & Science Home ESA Public Web Site Sci-Tech Portal      XMM-Newton Public Web Site XMM-Newton Sci-Tech Portal
Astrophysics Missions Planetary Exploration Missions Solar Terrestrial Science Missions Fundamental Physics Missions Science Faculty

Seyfert Galaxies

 Go to the Gallery Home Page

 XMM-Newton Home > Gallery Home > Active Galactic Nuclei > Seyfert Galaxies

Seyfert Galaxies

These are AGN, where the host galaxy is still clearly visible beneath the dominating nuclear emission. They represent the closest and intrinsically faintest population of AGN. Their X-ray output is dominated by accretion. Depending on their optical properties, they are further classified into "type 1" (generally X-ray unobscured), and "type 2" (generally X-ray obscured) objects. They are believed to be the ultimate source of the X-ray Background.

ESO 198-G24 
NGC 1365 
NGC 1808 
NGC 4258 
NGC 4258 
NGC 4258 
NGC 7582 

Page 1 of 1
Prev   Next >

Search the Image Gallery

To search the Image Gallery for a particular object, fill in the object name in the box below and click the Submit button.
Object Name Show Results As:  
To search the Image Gallery for other images, fill in any of the fields below and click the Submit button.
Category Sub-Category Instrument Show Results As:
For more search options, please use our Advanced Search form.

XMM-Newton; Europe's X-Ray Observatory
Last update: 17-Oct-2012 by