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Astronomy Picture of the Day - Centaurus A's Warped Magnetic Fields
APOD.NASA.gov ^ | 21 Apr, 2021 | Image Credit: Optical: European Southern Observatory (ESO) Wide Field Imager; Submillimeter: Max Pla

Posted on 04/21/2021 4:18:56 PM PDT by MtnClimber

Explanation: When galaxies collide -- what happens to their magnetic fields? To help find out, NASA pointed SOFIA, its flying 747, at galactic neighbor Centaurus A to observe the emission of polarized dust -- which traces magnetic fields. Cen A's unusual shape results from the clash of two galaxies with jets powered by gas accreting onto a central supermassive black hole. In the resulting featured image, SOFIA-derived magnetic streamlines are superposed on ESO (visible: white), APEX (submillimeter: orange), Chandra (X-rays: blue), and Spitzer (infrared: red) images. The magnetic fields were found to be parallel to the dust lanes on the outskirts of the galaxy but distorted near the center. Gravitational forces near the black hole accelerate ions and enhance the magnetic field. In sum, the collision not only combined the galaxies’ masses -- but amplified their magnetic fields. These results provide new insights into how magnetic fields evolved in the early universe when mergers were more common.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: gps; magneticfield; magnetism; nasa; poleshift
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 04/21/2021 4:18:56 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 04/21/2021 4:19:14 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

3 posted on 04/21/2021 4:20:32 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

That is not a centaur.

That’s a dog’s tail swatting a giant human ghost head.


4 posted on 04/21/2021 4:20:38 PM PDT by DannyTN
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; Art in Idaho; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌

There is a critter in one of the explanation hotlinks.
5 posted on 04/21/2021 4:21:09 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: DannyTN

I’d have to agree with you on that one.


6 posted on 04/21/2021 4:26:09 PM PDT by blueunicorn6 ("A crack shot and a good dancer”)
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To: blueunicorn6

Someone just didn’t want to call it the dog tail galaxy.


7 posted on 04/21/2021 4:39:32 PM PDT by DannyTN
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To: blueunicorn6

It looks like a bad hair day to me. And no cheeseburger.


8 posted on 04/21/2021 5:04:02 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

9 posted on 04/21/2021 5:47:06 PM PDT by 4Liberty (Honest GOP can’t use legal options cause Dems use illegal ones (threats). The Robert Creamer Party! )
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