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What is a magnetar.?

Chandra X-ray Observatory studies extraordinary magnetar
Date:
January 8, 2021
Source:
NASA
Summary:
In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses ofn 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light.

Magnetars are a type of neutron star, an incredibly dense object mainly made up of tightly packed neutron, which forms from the collapsed core of a massive star during a supernova.

What sets magnetars apart from other neutron stars is that they also have the most powerful known magnetic fields in the universe. For context, the strength of our planet's magnetic field has a value of about one Gauss, while a refrigerator magnet measures about 100 Gauss. Magnetars, on the other hand, have magnetic fields of about a million billion Gauss. If a magnetar was located a sixth of the way to the Moon (about 40,000 miles), it would wipe the data from all of the credit cards on Earth.

On March 12, 2020, astronomers detected a new magnetar with NASA's Neil Gehrels Swift Telescope. This is only the 31st known magnetar, out of the approximately 3,000 known neutron stars.

After follow-up obse
rvations, researchers determined that this object, dubbed J1818.0-1607, was special for other reasons.
See link
https://www.sciencedaily.com/releases/2021/01/210108120112.htm

11 day(s) ago

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Answers (1)

Kravenhead
Until I read that, I'd never heard of them.
Pretty cool.
I didn't know refrigerator magnets were more powerful than the Earth's magnetic field, either.
We wouldn't be here if the Earth didn't have one.
The solar winds would strip away the atmosphere and we'd be bombarded with radiation.
I don't know if I'm right, but that's what I think might have happened to Mars.

Posted 11 day(s) ago

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