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Astronomy Picture of the Day - Animation: Odd Radio Circles
APOD.NASA.gov ^
| 30 Mar, 2022
| Credits: Illustration: Sam Moorfield; Data: CSIRO, HST (HUDF), ESA, NASA; Image: J. English (U. Mani
Posted on 03/30/2022 4:01:17 PM PDT by MtnClimber
Explanation: What do you call a cosmic puzzle that no one expected to see? In this case, Odd Radio Circles, aka ORCs. ORC-1 typifies the enigmatic five objects, only visible at radio frequencies, that were serendipitously discovered in 2019 using the new Australian SKA Pathfinder radio array. The final image in the featured video uses 2021 data from the South African MeerKAT array to reveal more detail. The radio data, assigned turquoise colors, are combined with a Dark Energy Survey optical/IR map. The animated artist’s illustration explores just one idea about the ORCs’ origins. If two supermassive black holes merge in the center of a galaxy, the associated shockwaves could generate rings of radio radiation. These grow to fill the video frame. The video zooms out so the expansion the ORC can be tracked until it is about a million light-years across. Fortunately, the up-coming Square Kilometer Array can help test this and other promising scenarios.
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; nasa; oddradiocircles; science
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail). Today's image is an animation at the source link.
To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.
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Today's image is an animation at the source link.
2
posted on
03/30/2022 4:01:49 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on mycreen name for my FR home page.)
To: MtnClimber
In response the radio circle broadcast, “We’re being observed by an odd space agency.
3
posted on
03/30/2022 4:28:39 PM PDT
by
DannyTN
To: DannyTN
Something about chuck Berry...
4
posted on
03/30/2022 4:30:57 PM PDT
by
tet68
( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
To: DannyTN
Your thoughts have been scanned and you have a Galactic Credit Score. You just don’t know it yet.
5
posted on
03/30/2022 4:32:41 PM PDT
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on mycreen name for my FR home page.)
To: MtnClimber
It’s my Galactic social score that I’m worried about.
6
posted on
03/30/2022 4:41:05 PM PDT
by
DannyTN
To: MtnClimber
7
posted on
03/30/2022 4:42:23 PM PDT
by
Repeal The 17th
(Get out of the matrix and get a real life.)
To: MtnClimber
You can get a pair of your own at the odd jewelry store. I think it's an amulet you wear on a necklace. But NASA thinks it's a ring. Looks like a painful ring.
8
posted on
03/30/2022 4:43:51 PM PDT
by
DannyTN
To: MtnClimber
This is also what happens when you charge a Tesserect wrong.
9
posted on
03/30/2022 4:51:28 PM PDT
by
DannyTN
To: MtnClimber
The radio signal spells out: W..K..R..P
10
posted on
03/30/2022 8:09:43 PM PDT
by
minnesota_bound
(Need more money to buy gas)
To: MtnClimber
11
posted on
03/31/2022 5:07:26 AM PDT
by
Red Badger
(Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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