Liked on YouTube: Mergers From Neutron Stars And Black Holes Could Hide From Us!

Mergers From Neutron Stars And Black Holes Could Hide From Us!
Explosions in space are so astronomical that there is no way that we can’t can’t observe it, but what if we find ones that are so massive, yet so elusive to our eyes? Let’s find out how mergers from neutron stars and black holes could hide from us Subscribe for more videos:https://www.youtube.com/c/InsaneCuriosity?sub_confirmation=1? Ever since we learned to look up and become amazed with the night time, humankind has been observing the celestial sphere, finding new things to fuel up the level of being impressed that we already have. And we definitely have come a long way, from the days of the early Arabic astronomers squinting their eyes hard to make out something from their star maps, to devising the very first telescope, to building huge instruments that can measure gravitational waves. It has really been a long way for us in terms of observing the night sky. Having all of this firepower, it is practically impossible for anything to miss our sight, right? Well, if the universe is that easy, then we would have nothing more interesting to learn! Of course, there are things that are beyond our observational capacity. This day, however, we would like to talk about two of the most powerful, most extreme, and most " scarier objects we have seen in the universe: neutron stars and black holes. These two are so scary that they are practically zombies of "withou life" stars. I know you’re thinking that’s kind of an awkward analogy, but bear with me. I’ll explain how that’s the case. So, we have known for a long time that just like us here on Earth, stars also undergo a certain life cycle: they start from a cloud of particles, which then accrete and coalesce to form a baby star, which then eats and eats more particles to grow into a giant star, and when it’s large enough, gravity takes over and collapses it, and then it explodes. Then, it leaves behind a new product. For stars with average mass, the final product is a white dwarf: a star that is about the size of the Earth, but is about as massive as the sun. You can imagine the amount of density on that one, but believe me when I say, that’s nothing to what we will talk about later. Now, if the star grows up to be extremely massive compared to the average, it fuses hydrogen and helium at a super fast rate. More fusion translates to more energy, so, when the gravity finally takes over and collapses the star, a supernova so bright that it outshines the whole galaxy takes place. From that point, one of two scenarios can happen. Firstly, the atoms in the star can collapse so tightly that it effectively eliminates the spaces between subatomic particles, squeezes the protons and neutrons in it to form neutrons. When the compression resolves to a sphere with a radius of 10 kilometers, we get the densest physical object in the universe, the neutron stars. It was even believed that this object is so dense, a part of it about the size of a sugar cube would weigh about the same as all of humanity. All of it! In a bite sized sugar cube! Don’t lie, I know you thought neutron stars were a group of neutrons that clustered together to form a star, didn’t you? Although, you somehow hit a point, since neutron stars are composed exclusively of neutrons, you can imagine it to be a gigantic atom. And then, we have another scenario. Sometimes, the gravitational collapse can be so strong that it compresses the star to a volume so infinitesimally small that you can practically say there is no volume at all. At this point, a black hole is born: a region in space where the gravitational force is so enormous it practically bends the time and space around it by a huge magnitude. How severe is this force? Well, let’s just say that even light cannot escape it and eventually gets eaten by it. Everything that gets close enough just gets consumed by it. So I hope at this point, you see how the zombie analogy from earlier works. Isn’t it fun? But here’s where it gets more interesting. Just as when two zombies meeting one another can cause a lot of chaos, so does when pairs of neutron stars and black holes. Let’s explore first what happens when two neutron stars are close to one another. We discussed earlier how neutron stars are the densest objects in the universe, and being that, it tells us that they exert a great amount of gravitational force as well. Now, imagine what happens when two of those come close to one another. As they approach a certain distance, the two neutron stars will begin to rotate about a common center of gravity. As time goes by, the gravitational force becomes stronger and stronger and the two stars begin to spiral towards one another, until finally, they merge into either a larger neutron star or a black hole, depending on what scientists call the Tolman–Oppenheimer–Volkoff limit. #InsaneCuriosity#RecentSpaceDiscoveries #NeutronStaRs
via YouTube https://www.youtube.com/watch?v=TCpV03-6Trs