Linked from

The 60 pages that link to Active galactic nucleus, each with the reason it gives.

• NGC 5548Narrower topic: NGC 5548’s variable central engine is a well-studied example of this phenomenon.

• ROSATRelated: ROSAT detected many active galactic nuclei, including objects obscured at other wavelengths.

• Sagittarius A*Narrower topic: Sagittarius A* is a subdued example of a galactic nucleus powered by a black hole.

• Astronomical black holesBroader topic: Accreting black holes can outshine the combined stars of their host galaxies.

• Astrophysical X-ray sourceBroader topic: Its hot corona and accretion flow emit across the X-ray band.

• BL LacertaeNarrower topic: BL Lacertae is one example of this broader class of energetic galactic cores.

• Cosmic rays and astroparticlesRelated: Its jets and outflows are candidate accelerators of ultra-high-energy particles.

• Messier 106Narrower topic: Messier 106’s nucleus produces radiation and outflows that shape its inner galaxy.

• Polarization in astronomyRelated: Polarization helps reveal its obscuring material, scattering regions, and jet geometry.

• Viktor AmbartsumianBroader topic: Ambartsumian argued that galactic nuclei could release enormous energy through processes beyond ordinary stellar activity.