Neutron Stars: Crash Course Astronomy #32
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In the aftermath of a 8 – 20 solar mass star’s demise we find a weird little object known as a neutron star. Neutrons stars are incredibly dense, spin rapidly, and have very strong magnetic fields. Some of them we see as pulsars, flashing in brightness as they spin. Neutrons stars with the strongest magnetic fields are called magnetars, and are capable of colossal bursts of energy that can be detected over vast distances. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents A Star Can Collapse to Form a Neutron Star 0:59 Neutron Star Characteristics 2:24 Pulsars 5:56 Magnetars 8:15 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Star Burst https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11447 [credit: NASA's Goddard Space Flight Center] X-ray Images of G292.0+1.8 http://chandra.harvard.edu/resources/animations/snr.html/?page=8 [credit: X-ray: NASA/CXC/Penn State/S.Park et al.; Optical: Pal.Obs. DSS] Neutron star cross section https://commons.wikimedia.org/wiki/File:Neutron_star_cross_section.jpg [credit: NASA] Fermi Spots 'Superflares' in the Crab Nebula https://www.youtube.com/watch?v=qDhdwgK218E [credit: NASA/Goddard Space Flight Center] What is a pulsar? https://www.youtube.com/watch?v=gjLk_72V9Bw [credit: NASA's Goddard Space Flight Center] Jocelyn Bell http://blog.sciencemuseum.org.uk/insight/2013/03/20/1960-discovery-of-pulsars/ [credit: National Media Museum / Science & Society Picture Library] Beacons of X-ray Light https://www.youtube.com/watch?v=6p2OGc6a_TQ [credit: NASA/JPL-Caltech] Chandra Time-Lapse Movie http://chandra.harvard.edu/photo/2002/0052/animations.html [credit: NASA/CXC/ASU/J.Hester et al.] NASA's Fermi Satellite Finds Hints of Starquakes in Magnetar 'Storm' http://www.nasa.gov/content/goddard/nasas-fermi-satellite-finds-hints-of-starquakes-in-magnetar-storm [credit: NASA's Goddard Space Flight Center/S. Wiessinger] NASA's Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pages/swift/bursts/new-phenom.html#.Vcp-6flVhBe [credit: NASA's Goddard Space Flight Center] Cosmic Explosion Second Only to the Sun in Brightness https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20077 [credit: NASA/Goddard Space Flight Center Conceptual Image Lab]
Comments
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Thanks a lot for the amazing videos you make and keep on continuing till the supernova of our sun 😊😊😊
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I always wonder what metaphysical function all those objects could have, I mean a neutron star with superfluid "perpetuum-mobile" spin has such specific effects on the space and matter, similar to black holes and suns etc., they all seem to me like parts of a computer or machine somehow, as if we we´re just so small that we can´t make any sense of it but seen from the hypothetical "outside" it could be a closed system that is in it´s physics and mechanics (producing new stuff from old, changing matter etc.) just like a machine and maybe not only "self-sustaining" but even doing something else in connection with other "systems" etc.
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Magnetars are the honey badgers of outer space 😂
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A little ball of quantum nastiness... What's quantum about a neutron star? It's just compressed mass!
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the one in 2004 is linked to the tsunami that killed 250000 ppl
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Maybe they should lose some weight.
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Supernovae relase one-two foe or 1–2×10^44 J = 2,38-4,76 x 10^28 MT!
And HOW core produce that much energy?
ELECTRON CAPTURE you idiot!
And c'mon!
Neutron stars have 150 000 - 100 000 km/s!
Earth ~10 km/s.
How much g ? Well... 15 000 - 10 000 times more!
Escape velocity=/=acceleration -
2:43 "small city" uses New York as an example
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Do neutron stars emit light or any kind? Can they be dark and undetected. The reason I'm asking is that I'm wondering if a space ship could end up driving by a neutron star inadvertently too close and be damaged.
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plays bowling with neutron stars
Gets infine score cuz of gravity
Dies :c -
i don't get it, why does the supernova occur?
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How does a mass of neutrons produce a magnetic field?
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That energy burst from the magnetar must have destroyed all life around that part of our galaxy, 50 thousand years ago! :(
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November 30th, 3:54 PM, 125 E. Evan St.
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neutron stars are impossible, nuclear physics teaches this as a fact
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Much better than hank, hate his accent
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what will happen if two magnetars collide?
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If it had a surface gravity 100 billion the times of earth then it would have a gravitational field of 9.8 x 10^11 m/s^2 which would mean that the gravitational field accelerated an object to faster than then speed of light each second. Assuming I did not get the order of magnitude wrong doesn't that mean the neutron star should form a black hole or at least have some insanely strong relativistic effects?
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the most informative 13 minutes of my life
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Is this conceptual image at 10:12 correct? It seems that X-rays are travelling slower than light waves from the same objects.
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