Quasars

Quasars (quasi-stellar objects) are objects of small angular size and immense power output. These first quasars to be discovered were strong radio sources. Because they are so bright, quasars are some of the most distant objects we can see in the Universe. The huge power output is believed to be fueled by interactions between the central black hole and a surrounding "accretion disk": a disk of matter that gathers around the black hole in the galactic nucleus. Many of the images on these pages are Double Radio Sources Associated with Galactic Nuclei (DRAGNs), which are large-scale double radio sources produced by jets that are launched by processes in AGN. You can learn more about such sources at this web site.

Click any thumbnail below to view the details of that image. Other images of Quasars can be found in the VLBA 2cm Survey of Compact Radio Sources.




3C175

3C204

3C215

3C263

3C279

3C31

3C334

3C351

3C433

3C66

4C 29.45

4C 29.45

4C38.41

M87

MOJAVE Poster

NGC6251

NRAO150

PKS B2300-189

Z 227-012

[HB89] 0735 178
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