Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Judi Lynn

(160,450 posts)
Mon Jul 12, 2021, 03:06 PM Jul 2021

South African telescope captures stunning image of radio galaxy


By Samantha Mathewson about 8 hours ago

Cosmic threads, ribbons and rings are caused by radio emissions from matter falling into the black hole at the center of the galaxy.



The Fanaroff-Riley Type I radio galaxy IC 4296 dominates this spectacular vista, wider than the full moon on the sky. MeerKAT radio data are represented in red/orange hues in this composite view. (Image credit: SARAO, SSS, S. Dagnello and W. Cotton (NRAO/AUI/NSF))

A stunning new image from the South African MeerKAT telescope captures powerful radio emissions woven through space.

The radio emissions emanate from an enormous rotating black hole that lies at the center of an elliptical galaxy known as IC 4296. Energy released by matter falling into the black hole generates two radio jets of high energy gas on opposite sides of the galaxy — creating what is also known as a double-lobed radio galaxy.

Using the South African Radio Astronomy Observatory's (SARAO) MeerKAT telescope, located in the southwest Karoo region of the country, researchers detected the radio waves from IC 4296, along with other unique cosmic features that may reveal new clues about large radio galaxies, according to a statement from the SARAO.

- video at link -

Recent observations of IC 4296 revealed that the radio jets become unstable as they travel beyond the outer reaches of the galaxy, allowing some of the charged electrons to escape into intergalactic space. These stray electrons create several faint radio "threads," which appear below the galaxy in the new image.

More:
https://www.space.com/south-african-meerkat-telescope-galaxy-image?utm_source=notification
1 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
South African telescope captures stunning image of radio galaxy (Original Post) Judi Lynn Jul 2021 OP
So many wonders padah513 Jul 2021 #1
Latest Discussions»Culture Forums»Science»South African telescope c...