Milky Way Magnetar Glitches

[Graeme1858]

"A huge clue to understanding the mysterious, fleeting flashes of radio waves known as fast radio bursts (FRBs) came when one went off in our own galaxy. A highly magnetized neutron star, or magnetar, dubbed SGR 1935+2154, emitted an FRB-like burst on April 28, 2020, and suddenly astronomers had an FRB to study in our own backyard. Since then, astronomers have been waiting for a repeat. In October 2022, they struck rich once again — and this time, they were ready."

https://skyandtelescope.org/astronomy-n ... newsletter

The paper was published in Nature this month:

https://www.nature.com/articles/s41586-023-07012-5


Graeme

[Gmetric]

Super interesting, Graeme! Just trawling through the paper now, which is free here https://arxiv.org/pdf/2402.09291v1.pdf
Thanks for the evening read, only 46 pages lol

[helicon]

That's a short one.

If you can't say it in 10 pages or less...

[Michael131313]

Thanks Graeme. Very interesting. Love this stuff.

[StarHugger]

Thanks Graeme,

I found the concept of stars rotationally quaking interesting, and thought of fluids inside a vessel and about the resistance or applied drag from fluid to surface being not that much different than other rotational bodies like our earth and the nearby ocean moons in our own system, or maybe thoughts of Saturn or Neptune quakings and the physics of the inner and outer rotating masses under gravity. Heat, friction and the resulting magnetic and electric conductivity...

Mindblowing to think though something twelve miles in diameter can spin at 42,000 mph without ripping itself to shreads.