Radio galaxies as a research area focus on extragalactic systems whose active galactic nuclei and associated relativistic jets emit strongly at radio wavelengths, often dominating their bolometric output. This field encompasses the physics of jet launching and collimation from accreting supermassive black holes, particle acceleration, synchrotron and inverse-Compton emission processes, and the interaction of jets and radio lobes with the interstellar and intracluster medium. Research on radio galaxies is central to understanding AGN feedback in galaxy formation and evolution, environmental dependence of radio-loud activity, large-scale magnetic fields, and the use of radio-loud AGN as probes of cosmology and large-scale structure.
An international team of researchers used multi-wavelength observations of active galactic nuclei to study how black holes launch relativistic jets. The sixteen sources were observed with the Event Horizon Telescope during ...
Astronomy
Mar 24, 2025
0
448
By analyzing the data from Leahy's atlas of double radio-sources and NASA/IPAC Extragalactic Database (NED), Serbian astronomers have explored an X-shaped radio galaxy designated 3C 315. Results of the new study, published ...
The night sky offers us a variety of spectacles throughout the year, but for the remainder of the month, we have front-row seats to see—not one or two—but seven planets at once.
Astronomy
Feb 26, 2025
0
80
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), astronomers have investigated the emission properties of three long-period pulsars. Results of the observational campaign are presented in a research ...
Enabled by supercomputing, University of Pretoria (UP) researchers have led an international team of astronomers that has provided deeper insight into the entire life cycle (birth, growth and death) of giant radio galaxies, ...
Astronomy
Feb 11, 2025
0
90
Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.
Astronomy
Jan 20, 2025
0
449
New observations from the National Science Foundation National Radio Astronomy Observatory's (NSF NRAO) Karl G. Jansky Very Large Array (NSF VLA) provide compelling evidence supporting a universal mechanism for the collimation ...
Astronomy
Jan 8, 2025
0
103
An international team of astronomers has employed the MeerKAT radio telescope to investigate giant radio galaxies in the field of the Cosmological Evolution Survey (COSMOS). They found a new giant radio galaxy that had not ...
