Starship Asterisk*

[quote=stevestone post_id=312759 time=1619219394]
It would be interesting to see the same image reproduced at five year intervals to see if the magnetic lines are changing in any discernible manner.
[/quote]

I think it would require an interval of thousands of years for there to be any detectable change.

It would be interesting to see the same image reproduced at five year intervals to see if the magnetic lines are changing in any discernible manner.

Looks like a skull. :lol2:

[attachment=1]CenA_SofiaPlusB_960.jpg[/attachment]

Really amazing that magnet6ic lines can stretch all across the galaxy
like that!

[quote]APOD new insights [/quote]

Cute little critter! :mrgreen:
[attachment=0]d6dc8b1771b697ff2992982482911274.jpg[/attachment]

[quote=WWW post_id=312675 time=1618980287 user_id=145830]
Seems to be the wrong image here, not clear where the "superposed" magnetic streamlines are.
An image connected to the title's (USRA) link may be the intended image.
https://newsroom.usra.edu/galactic-merger-warps-magnetic-fields/
Lots of extra lines on that one.
[/quote]

Yes, my bad. The correct image is now featured. Apologies!
- RJN

[quote=bystander post_id=312677 time=1618981768 user_id=112005]
[quote=WWW post_id=312675 time=1618980287 user_id=145830]
Seems to be the wrong image here, not clear where the "superposed" magnetic streamlines are.
An image connected to the title's (USRA) link may be the intended image.
https://newsroom.usra.edu/galactic-merger-warps-magnetic-fields/
Lots of extra lines on that one.
[/quote]
[quote="APOD Robot" post_id=312674 time=1618977934 user_id=128559]
... [url=https://www.nasa.gov/feature/galactic-merger-warps-magnetic-fields]featured image[/url] ...
[/quote]
[/quote]


[float=left][img3="Composite image of Centaurus A. Credits: Optical: European Southern Observatory (ESO) Wide Field Imager; Submillimeter: Max Planck Institute for Radio Astronomy/ESO/Atacama Pathfinder Experiment (APEX)/A.Weiss et al.; X-ray and Infrared: NASA/Chandra/R. Kraft; JPL-Caltech/J. Keene; SOFIA/L. Proudfit"]https://www.nasa.gov/sites/default/files/styles/side_image/public/thumbnails/image/cena_lic-lp-nature-cropped.jpg?itok=gpaZEdDO[/img3][/float]

[clear][/clear]


I think that the above image would have been a better choice for an APOD, in view of the fact that the caption talks about magnetic lines.

Ann

[quote=WWW post_id=312675 time=1618980287 user_id=145830]
Seems to be the wrong image here, not clear where the "superposed" magnetic streamlines are.
An image connected to the title's (USRA) link may be the intended image.
https://newsroom.usra.edu/galactic-merger-warps-magnetic-fields/
Lots of extra lines on that one.
[/quote]
[quote="APOD Robot" post_id=312674 time=1618977934 user_id=128559]
... [url=https://www.nasa.gov/feature/galactic-merger-warps-magnetic-fields]featured image[/url] ...
[/quote]

Seems to be the wrong image here, not clear where the "superposed" magnetic streamlines are.
An image connected to the title's (USRA) link may be the intended image.
https://newsroom.usra.edu/galactic-merger-warps-magnetic-fields/
Lots of extra lines on that one.


.

[url=https://apod.nasa.gov/apod/ap210421.html] [img]https://apod.nasa.gov/apod/calendar/S_210421.jpg[/img] [size=150]Centaurus A's Warped Magnetic Fields[/size][/url]

[b] Explanation: [/b] When galaxies collide -- what happens to their [url=https://pwg.gsfc.nasa.gov/Education/Imagnet.html]magnetic fields[/url]? To help find out, NASA pointed [url=https://www.nasa.gov/mission_pages/SOFIA/index.html]SOFIA[/url], its flying 747, at galactic neighbor [url=https://en.wikipedia.org/wiki/Centaurus_A]Centaurus A[/url] to observe the emission of polarized dust -- which traces magnetic fields. Cen A's unusual shape results from the clash of two galaxies with [url=https://apod.nasa.gov/apod/ap210117.html]jets[/url] powered by gas accreting onto a [url=https://apod.nasa.gov/apod/ap210331.html]central supermassive black hole[/url]. In the resulting [url=https://www.nasa.gov/feature/galactic-merger-warps-magnetic-fields]featured image[/url], SOFIA-derived magnetic streamlines are superposed on [url=https://www.eso.org/public/]ESO[/url] ([url=https://science.nasa.gov/ems/09_visiblelight]visible[/url]: white), [url=http://www.apex-telescope.org/ns/]APEX[/url] ([url=https://en.wikipedia.org/wiki/Far-infrared_astronomy]submillimeter[/url]: orange), [url=https://www.nasa.gov/mission_pages/chandra/main/index.html]Chandra[/url] ([url=https://science.nasa.gov/ems/11_xrays]X-rays[/url]: blue), and [url=https://www.nasa.gov/mission_pages/spitzer/main/index.html]Spitzer[/url] ([url=https://science.nasa.gov/ems/07_infraredwaves]infrared[/url]: red) images. The magnetic fields were found to be [url=https://www.mathsisfun.com/geometry/parallel-lines.html]parallel[/url] to the [url=https://apod.nasa.gov/apod/ap151119.html]dust lane[/url]s on the outskirts of the galaxy but distorted near the center. Gravitational forces near the [url=https://apod.nasa.gov/apod/ap210416.html]black hole[/url] accelerate ions and enhance the [url=https://phet.colorado.edu/sims/cheerpj/faraday/latest/faraday.html]magnetic field[/url]. In sum, the [url=https://en.wikipedia.org/wiki/Galaxy_merger]collision[/url] not only combined the galaxies’ masses -- but amplified their magnetic fields. [url=https://www.nature.com/articles/s41550-021-01329-9.epdf]These results[/url] provide [url=https://i.pinimg.com/originals/d6/dc/8b/d6dc8b1771b697ff2992982482911274.jpg]new insights[/url] into how magnetic fields evolved in the [url=https://apod.nasa.gov/apod/ap121014.html]early universe[/url] when [url=https://apod.nasa.gov/apod/ap130514.html]mergers[/url] were more common.


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