Neutron star merger visualized
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- čas přidán 12. 12. 2021
- This video shows a computer simulation of two neutron stars merging, showing threedimensional visualizations of the data. The simulation models an event like the one responsible for the first gravitational waves detected by @LIGOVirgo in 2017 from a neutron star coalescence (GW170817).
For general background information, see
en.wikipedia.org/wiki/Neutron...
en.wikipedia.org/wiki/GW170817
en.wikipedia.org/wiki/Gravita...
The scientific details are described in the publication: W. Kastaun and F. Ohme, “Numerical inside view of hypermassive remnant models for GW170817”, Phys. Rev. D 104 (2021), doi.org/10.1103/PhysRevD.104....
The video shows research done by the research group “Binary Merger Observations and Numerical Relativity” at the Max Planck Institute for Gravitational Physics (AEI) Hannover: www.aei.mpg.de/BinaryObservat...
Simulations and raytracing performed on the “Holodeck” cluster at AEI by Wolfgang Kastaun.
Extra credits: thanks to the SOHO observatory for images of the sun, to @smartereveryday for the slow motion bird footage, and to the developers of @BlenderOfficial, the free open source raytracing software. - Věda a technologie
love the slo-mo bird for that speed comparison!
I was imagining a neutron star merger recently and thought how incredible it would be visualize it as being close to the Earth to give a sense of scale. Now I don't need to imagine anymore! Kudos!
This video is amazing. I have never seen such a great visualization of scale, not only in time but also in size, shown next to visualizations of other concepts like gravitational waves. This is truly a great resource for those learning about the subject.
Wow that last simulation was unbelievably well made and informative!
Amazing video. Thanks for the upload.
Omg that’s the maddest TING I’ve ever seen 😤‼️
Awsome
Ive seen a lot of Neutron star merger videos but this is the first time I've seenthat is compared in real time by adding that slowmo video of a bird flying. You see, average people like me are not smart enough to follow or visualize the concept of astronomy. I know they explained it in the video but comparing it with a real time videos would help a lot. I'm stupid ok? lmao
Sorry for being a bit slow but there's a black hole in the middle of a neutron star?
No. A black hole forms after the merger of two neutron stars at the center of the merger remnant.
@@mpi_grav I have a question. What speed of falling core and crust into black hole?
@@michaeleler2039 The velocity one observes depends on the observer. If you're far away from the black hole you'll observe something different from someone (magically) hovering close to the black hole. There's some discussion on this effect for example at physics.stackexchange.com/questions/170502/will-an-object-always-fall-at-an-infinite-speed-in-a-black-hole.
@@mpi_grav 1)Ok, but what speed of falling crust and core into itself and "forming" black hole?
2)If core is "nearer" than crust to mass center, does it mean time moving slower in core and core is rotating on different speed?
@@michaeleler2039 The value of 1) again depends on the observer. Regarding 2) The object collapsing in this video is a neutron star. Neutron stars do not rotate rigidly, so core and crust do not rotate at the same speed anyway. Hypothetical clocks will run differently inside the neutron star compared to those on the surface.
Ihr Akzept ist wirklich ein Alptraum.
Vielleicht könnten Sie kurz erklären, was ein Akzept (Teil eines Wertpapierwechsels, de.wikipedia.org/wiki/Wechsel_(Wertpapier)#Handhabung_des_Wechsels) mit diesem Video zu tun hat? Vielen Dank!
It’s just a kilonova
“Just” a kilonova 🙂
@@mpi_grav what you don't keep one in you're pocket to ward of rainy days :)
test.