Date: 26/03/2021 00:16:20
From: dv
ID: 1715524
Subject: Black hole, polarised light image

https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole

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Date: 26/03/2021 00:17:24
From: sibeen
ID: 1715526
Subject: re: Black hole, polarised light image

dv said:


https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole


That’s not black.

disappointed from Essendon

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Date: 26/03/2021 00:22:08
From: Bubblecar
ID: 1715530
Subject: re: Black hole, polarised light image

Impressive.

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Date: 26/03/2021 07:16:43
From: SCIENCE
ID: 1715558
Subject: re: Black hole, polarised light image

seems so much big deal about orientation these days

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Date: 26/03/2021 08:33:16
From: mollwollfumble
ID: 1715570
Subject: re: Black hole, polarised light image

dv said:


https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole


Interesting spiral.

Images showing astronomical polarisation make spectacular images these days.

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Date: 26/03/2021 08:54:36
From: mollwollfumble
ID: 1715579
Subject: re: Black hole, polarised light image

mollwollfumble said:


dv said:

https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole


Interesting spiral.

Images showing astronomical polarisation make spectacular images these days.

The following is the polarisation from a ring galaxy. The results are not all that different to that of black hole above.

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Date: 26/03/2021 08:59:13
From: The Rev Dodgson
ID: 1715580
Subject: re: Black hole, polarised light image

sibeen said:


dv said:

https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole


That’s not black.

disappointed from Essendon

It is an orange in the dark though.

slightly annoyed from Berwick on Tweed

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Date: 26/03/2021 09:45:00
From: Ian
ID: 1715598
Subject: re: Black hole, polarised light image

But, he says, “there’s some interesting component of this magnetic field which is not just following the motion of the gas.” At least some of the magnetic field lines are sticking up or down perpendicularly from the accretion disk, or pointing directly toward or away from the black hole, Dexter and colleagues found. These magnetic fields must be very strong to resist being dragged around by the whirl of infalling gas, he says.

Such strong magnetic fields may actually push back against some of the material spiraling in toward the black hole, helping it resist gravity’s pull, says study coauthor Monika Mościbrodzka, an astrophysicist at Radboud University in Nijmegen, the Netherlands. Magnetic fields pointed up and down from the accretion disk could also help launch the black hole’s plasma jets, by channeling material toward the black hole’s poles and giving it a boost in speed, she says.

Ah, nice

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Date: 26/03/2021 11:08:06
From: Cymek
ID: 1715669
Subject: re: Black hole, polarised light image

mollwollfumble said:


mollwollfumble said:

dv said:

https://www.sciencenews.org/article/black-hole-picture-magnetic-fields-event-horizon-telescope

A new black hole image reveals the behemoth’s magnetic fieldsEvent Horizon Telescope data show the orientation of light emitted near M87’s black hole


Interesting spiral.

Images showing astronomical polarisation make spectacular images these days.

The following is the polarisation from a ring galaxy. The results are not all that different to that of black hole above.


Is that due to large mass causing similar polarisation

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Date: 26/03/2021 20:25:38
From: mollwollfumble
ID: 1715914
Subject: re: Black hole, polarised light image

Cymek said:


mollwollfumble said:

mollwollfumble said:

Interesting spiral.

Images showing astronomical polarisation make spectacular images these days.

The following is the polarisation from a ring galaxy. The results are not all that different to that of black hole above.


Is that due to large mass causing similar polarisation

I suspect so.

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Date: 26/03/2021 20:26:34
From: mollwollfumble
ID: 1715915
Subject: re: Black hole, polarised light image

mollwollfumble said:


Cymek said:

mollwollfumble said:

The following is the polarisation from a ring galaxy. The results are not all that different to that of black hole above.


Is that due to large mass causing similar polarisation

I suspect so.

Oops, not a central mass. A distributed mass in the ring, in both cases.

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