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Radio Galaxy

All articles tagged with #radio galaxy

astronomy2 years ago

"Hubble Space Telescope Captures Rare Radio Galaxy's Radiant Revelations"

NASA's Hubble Space Telescope has captured a stunning image of the lenticular galaxy NGC 612, known for its significant radio emissions. This active and rare non-elliptical radio galaxy is located in the Sculptor constellation and exhibits characteristics of a Seyfert galaxy. Astronomers hope to uncover the causes of radio wave emissions in galaxies by studying NGC 612, which is one of only five known radio-emitting lenticular galaxies in the universe.

via SciTechDaily|
#astronomy#hubble-space-telescope#ngc-612
science2 years ago

Supermassive black hole discovered facing Earth, emitting powerful radiation.

Scientists have discovered a colossal black hole, PBC J2333.9-2343, nearly 657 million light-years away from Earth, which is pointed directly at Earth. The black hole is about 40 times larger than the Milky Way galaxy and is classified as a giant radio galaxy. The researchers located a blazar, one of the most powerful phenomena in the universe, in the center of the galaxy, emitting light directly at Earth. The unique properties of the galaxy also revealed its old age.

via Washington Examiner|
#astrophysics#black-hole#blazar
astronomy2 years ago

Jet direction shift leads to reclassification of galaxy.

The galaxy PBC J2333.9-2343 has been reclassified as a giant radio galaxy with a blazar at its center due to a drastic change in the direction of its jet, which is now pointing directly towards us. The jet is thought to originate from or close to the supermassive black hole in its center. The team of international astronomers observed the galaxy across a wide range of the electromagnetic spectrum and concluded that it has a bright blazar in the center, with two lobes in the outer areas of the jet. The lobes that are observed are related to the old jets and are no longer being fed by the emission from the nucleus, so these lobes are relics of past radio activity.

via Phys.org|
#astronomy#black-hole#blazar
science-and-astronomy2 years ago

Unraveling the Core of a Distant Galaxy Cluster through Radio Signals

Astronomers investigating an anomalous radio emission from the galactic cluster Abell 1213 have discovered that it may come from the 1.66 million light-year-long radio tail of its dominating central galaxy, 4C29.41. The team also found evidence of mergers between galaxies in the cluster, which is located around 647 million light-years from Earth. The radio emission is not a radio halo, but rather a radio relic, possibly caused by a past galactic merger. The cluster's core has an intricate substructure, and star-forming galaxies are not restricted to the edges of Abell 1213.

via Space.com|
#abell-1213#galactic-cluster#radio-galaxy