What if a Magnetar Came Close to Earth?
What if a dead star could rip the atoms out of your body? Meet the magnetar—one of the most terrifying objects in the universe. With a magnetic field a trillion times stronger than Earth's, it can twist atoms, erase electronics from 240,000 miles away, and warp the very nature of light. In this video, we explore why magnetars are so powerful and what would happen if one ever entered our solar system and came dangerously close to Earth. Spoiler: it’s cosmic horror at its finest.
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New type of star gives clues to magnetars’ origins | ESOcast Light
Using multiple telescopes around the world, including European Southern Observatory (ESO) facilities, researchers have uncovered a living star that is likely to become a magnetar, an ultra-magnetic dead star. This video summarises the discovery.
Credits: ESO
Directed by: Angelos Tsaousis and Martin Wallner.
Editing: Angelos Tsaousis.
Web and technical support: Gurvan Bazin and Raquel Yumi Shida.
Written by: Claudia Sciarma and Tom Howarth.
Music: Stellardrone — Breathe In The Light.
Footage and photos: ESO / L. Calçada, Angelos Tsaousis, B. Tafreshi, P. Horálek, Zdeněk Bardon, José Francisco Salgado.
Scientific consultant: Paola Amico, Mariya Lyubenova.
For more details, check: https://www.eso.org/public/news/eso2313/.
Video download options: https://www.eso.org/public/videos/eso2313a/
Strongest Magnet In the Universe | Space Mysteries | BBC Earth Science
The magnetic field of a newly found ultra-rare neutron star is over a trillion times greater than Earth's. So powerful, if you were within 1000km of this star you'd simply dissolve! Should we be worried?
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Strange Magnetar That Seems To Have Solid Surface For Very Weird Reasons
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Hello and welcome! My name is Anton and in this video, we will talk about a magnetar with a solid service
Links:
https://www.ucl.ac.uk/news/2022/nov/magnetised-dead-star-likely-has-solid-surface
https://iopscience.iop.org/article/10.3847/2041-8213/ac9b2a
https://www.science.org/doi/10.1126/science.add0080
https://en.wikipedia.org/wiki/4U_0142%2B61
#magnetar #neutronstar #physics
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All about Magnetar’s
RAG Zoom Programme - 2022
RAG Zoom 07 Oct 2022
Dr Samuel Lander
Theoretical astrophysicist. Univ. East Angela. The main focus of research is neutron stars: the collapsed remnants of a normal star's core following a supernova.
A magnetar is a type of neutron star with a particularly strong magnetic field. This field powers a range of outburst activity, from X-ray and gamma-ray bursts and flares, to the recently discovered fast radio bursts. This talk will survey the observations and give a picture of how a magnetar releases all this energy.
Please see https://britastro.org/node/25798 for previous lectures
New Record For The Most Powerful Magnet In the Universe
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Hello and welcome! My name is Anton and in this video, we will talk about the confirmation of the most powerful magnet in the universe
Links:
https://iopscience.iop.org/article/10.3847/2041-8213/ac7711
https://en.wikipedia.org/wiki/Magnetic_field
https://en.wikipedia.org/wiki/Magnetar
https://en.wikipedia.org/wiki/Gauss_(unit)
http://hxmten.ihep.ac.cn/
https://vimeo.com/290623075
#magnet #pulsar #discovery
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Magnetar in Our Galaxy - Narrated Documentary
For the first time, scientists have observed a Magnetar in our own galaxy.
Narrated by Carol Meier. Female documentary narrator.
One of the most powerful bursts in the universe usually found in other galaxies but not any more.
Background music available at
https://www.shockwave-sound.com/a/4be2237bb1
www.carolmeiernarrator.com
FRB Update: Another Signal Source That Was Missed Years Ago
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Hello and welcome! My name is Anton and in this video, we will talk about a new discovery of another magnetar that produced FRBs
Paper: https://arxiv.org/pdf/2011.06607.pdf
Parkes telescope study: https://arxiv.org/pdf/1504.02165.pdf
Video used: https://www.youtube.com/watch?v=CiGj-gtygDU
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Magnetars: the strongest magnets ever!
Hi Spacecats, I'm Dr Maggie Lieu and welcome to my channel, where you can find all things space, astronomy and physics! Magnetars are powerful magnetic phenomena, but also quite rare, in this video I talk about the mystery behind these objects
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Extra reading:
Fong et al 2020: https://arxiv.org/abs/2008.08593
Media credits:
Pulsar: NASA/GSFC
Sun: SOLO/ESA/ATG media lab
Magnetar burst: NASA/GSFC/Smith
Magnetar X-ray burst: NASA/GSFC/Smith
Magnetar flyby: NASA/GSFC/Smith
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Hypernovas & Magnetars - The Most Powerful Objects in the Universe
https://brilliant.org/CuriousDroid
They are the most powerful objects in the known universe and if we leave out black holes, Hypernovas and Magnetars have got to be some of the scariest things we know about just because they can weald devastating power over huge distances, in this video we look at these most extreme objects to try and make sense of them.
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Written, Researched and Presented by Paul Shillito
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Neutron Stars, Pulsars, and Magnetars
Neutron Stars, Pulsars, and Magnetars are the most extreme objects in the Universe that aren't Black Holes. Their extreme densities make neutron stars the densest solid bodies in the Universe ultra-powerful magnetic fields. When these fields sweep along our line of sight, we see them as Pulsars. Some Pulsars have have extremely strong magnetic fields. We call these objects Magnetars. And when a Magnetar has a star quake, the most violent explosions this side of a Supernova take place.
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We Found The Origins of Mysterious Magnetars - Rare Giant Stars
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Hello and welcome! My name is Anton and in this video, we will talk about how magnetars are probably formed and what effects they have in general.
Paper: https://www.nature.com/articles/s41586-019-1621-5
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The Strongest Magnetic Field in the Universe
Hint: It's not your collection of awesome refrigerator magnets!
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Sources:
http://www.esa.int/Our_Activities/Space_Science/Mysterious_magnetar_boasts_one_of_strongest_magnetic_fields_in_Universe
http://phys.org/news/2016-08-magnetars.html
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/MagEarth.html
http://imagine.gsfc.nasa.gov/science/objects/pulsars2.html
http://www.chandra.harvard.edu/press/13_releases/press_052313.html
https://www.nasa.gov/missions/deepspace/f_magnetars.html
http://www.space.com/30263-paul-sutter-on-why-magnetars-are-scary.html
Images:
https://commons.wikimedia.org/wiki/File:US_Navy_111006-O-KK908-026_An_MRI_machine_is_set_up_at_the_Role_3_Medical_Facility_at_Joint_Operating_Base,_Bastion,_Afghanistan.jpg
https://commons.wikimedia.org/wiki/File:Artist%E2%80%99s_impression_of_the_magnetar_in_the_star_cluster_Westerlund_1.jpg
https://www.nasa.gov/mission_pages/GLAST/science/neutron_stars.html
https://commons.wikimedia.org/wiki/File:Pulsar_schematic.svg
http://www.chandra.harvard.edu/photo/2013/sgr0418/
https://commons.wikimedia.org/wiki/File:Neutron_Star.jpg
https://www.nasa.gov/mission_pages/chandra/multimedia/photo10-137.html
What are Magnetars? The Most Magnetic Objects in the Universe
Magnetars are neutron stars with massively boosted magnetic fields. How do this stellar remnants form, and what would happen if you got too close to one?
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Team: Fraser Cain - @fcain
Jason Harmer - @jasoncharmer
Chad Weber - weber.chad@gmail.com
Created by: Fraser Cain and Jason Harmer
Edited by: Chad Weber
Music: Left Spine Down - “X-Ray”
https://www.youtube.com/watch?v=4tcoZNrSveE
In a previous episode, we crushed that idea that the Universe is perfect for life. It’s not. Almost the entire Universe is a horrible and hostile place, apart from a fraction of a mostly harmless planet in a backwater corner of the Milky Way.
While living here on Earth takes about 80 years to kill you, there are other places in the Universe at the very other end of the spectrum. Places that would kill you in a fraction of a fraction of a second.
And nothing is more lethal than supernovae and remnants they leave behind: neutron stars.
We’ve done a few shows about neutron stars and their different flavours, so there should be some familiar terrain here.
As you know, neutron stars are formed when stars more massive than our Sun explode as supernovae. When these stars die, they no longer have the light pressure pushing outward to counteract the massive gravity pulling inward.
This enormous inward force is so strong that it overcomes the repulsive force that keeps atoms from collapsing. Protons and electrons are forced into the same space, becoming neutrons. The whole thing is just made of neutrons. Did the star have hydrogen, helium, carbon and iron before? That’s too bad, because now it’s all neutrons.
You get pulsars when neutron stars first form. When all that former star is compressed into a teeny tiny package. The conservation of angular motion spins the star up to tremendous velocities, sometimes hundreds of times a second.
But when neutron stars form, about one in ten does something really really strange, becoming one of the most mysterious and terrifying objects in the Universe.
They become magnetars. You’ve probably heard the name, but what are they?
As I said, magnetars are neutron stars, formed from supernovae. But something unusual happens as they form, spinning up their magnetic field to an intense level. In fact, astronomers aren’t exactly sure what happens to make them so strong.
One idea is that if you get the spin, temperature and magnetic field of a neutron star into a perfect sweet spot, it sets off a dynamo mechanism that amplifies the magnetic field by a factor of a thousand.
But a more recent discovery gives a tantalizing clue for how they form. Astronomers discovered a rogue magnetar on an escape trajectory out of the Milky Way. We’ve seen stars like this, and they’re ejected when one star in a binary system detonates as a supernova. In other words, this magnetar used to be part of a binary pair.
And while they were partners, the two stars orbited one another closer than the Earth orbits the Sun. This close, they could transfer material back and forth. The larger star began to die first, puffing out and transferring material to the smaller star. This increased mass spun the smaller star up to the point that it grew larger and spewed material back at the first star.
The initially smaller star detonated as a supernova first, ejecting the other star into this escape trajectory, and then the second went off, but instead of forming a regular neutron star, all these binary interactions turned it into a magnetar.
There you go, mystery maybe solved?
The strength of the magnetic field around a magnetar completely boggles the imagination. The magnetic field of the Earth’s core is about 25 gauss, and here on the surface, we experience less than half a gauss. A regular bar magnet is about 100 gauss. Just a regular neutron star has a magnetic field of a trillion gauss.
Magnetars are 1,000 times more powerful than that, with a magnetic field of a quadrillion gauss.
What if you could get close to a magnetar? Well, within about 1,000 kilometers of a magnetar, the magnetic field is so strong it messes with the electrons in your atoms. You would literally be torn apart at an atomic level. Even the atoms themselves are deformed into rod-like shapes, no longer usable by your precious life’s chemistry.
But you wouldn’t notice because you’d already be dead from the intense radiation streaming from the magnetar, and all the lethal particles orbiting the star and trapped in its magnetic field.
One of the most fascinating aspects of magnetars is how they can have starquakes. You know, earthquakes, but on stars… starquakes.
7 Terrifying Monsters We Have Discovered in Space
Space is enormous, that means there's plenty of places for planet-eating, time-bending monsters to hide away. Thoughty2 looks at seven of the scariest "monsters" we have found in space.
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Super Star Cluster and its Magnetar - Deep Sky Videos
It's not a Messier Object, but we let Professor Paul Crowther tell us all about Westerlund 1 and its impressive magnetar.
More videos on Messier Objects, including many clusters: http://bit.ly/MessierObjects
Deep Sky Videos website: http://www.deepskyvideos.com/
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More about the astronomers in our videos: http://www.deepskyvideos.com/pages/contributors.html
Made possible by:
The University of Nottingham
and The University of Sheffield.
Video by Brady Haran
This video edited by James Hennessy
Space Scoop: The Most Attractive Stars in the Universe
Space Scoop: The Most Attractive Stars in the Universe
Astronomers think magnetars may be created when some massive stars die in a supernova explosion.
Related Link: http://chandra.si.edu/photo/2014/archives/kids.html
More Podcasts: http://chandra.si.edu/resources/podcasts/sd.html
'Halo' Of Echoing X-rays From Magnetar Outburst | Video
A highly magnetized neutron Star named SGR J1550-5418 erupted with a series of powerful x-ray and gamma-ray flares on Jan 22, 2009. NASA's Swift satellite observed the outburst over the course of 6 days.
Mystery of Magnetar Formation May Now Be Explained | Video
Discovery of runaway companion star points to a mass-exchange during a supernova explosion; weird conditions that lead to the weird, violent object called a magnetar. -- Full Story: http://goo.gl/Xn8xIt
Pulsars, Magnetars, Black Holes (Oh My!): The Wickedly Cool Stellar Undead
The biggest stars burn the fastest and brightest, and when they die, they do so spectacularly, exploding as supernovae and leaving behind some of the most fantastic objects in the universe: neutron stars and black holes. In this public science talk recorded at James Madison University on April 17, 2014, Dr. Scott Ransom (NRAO/UVa) discussed how these crazy objects are created, some of their amazing properties and why we (probably!) don't need to worry about them too much here in our cozy homes on Earth.
To learn more about our public science presentations, and to be informed, when our next ones will take place, please visit our website: http://www.jmu.edu/planetarium