What happens when 2 suns collide???

[AstroLuke55]

https://www.youtube.com/watch?v=t4iXJ_UrwyM

[vkobe]

firework ^_^

even a red dwarf is enough to light up any stars XD

[AstroLuke55]

Originally posted by vkobe:

firework ^_^

even a red dwarf is enough to light up any stars XD

Ya the thubnail up above is when I put the colors to the velocity setting

[vkobe]

is just i thought it will add more mass to star instead supernova

so i dont know what will really happen in reality, because from what i read it should add more mass and just merge instead to go into supernova, it seem only white dwarf can go into supernova when they eat too much star

so i supposed more hydrogen will only reduce star lifespan no kill it ^_^

[OuijaMawl]

There isn't much of an answer for what happens during a stellar collision as none have ever been observed, we only have theory and hypothesis of what could potentially happen.

Some therorize that a small dwarf star could merge into a larger supermassive type star where the dwarf becomes a new core and extended life for the larger star. Another end result is a type 1A supernova which is the current result in this game of two equal sized stellar objects. Possibly two colliding sun could be the birth of a black hole

[vkobe]

no i dont think 2 suns collide will result in black hole, because they have enough hydrogen to stay a star in main sequence

[OuijaMawl]

The amount of hydrogen doesn't have much to do with the creation of a black hole. Gravity has more to do with the birth of black holes than composition of the stars that created them. All you need is enough of it to crush the stars and form a singularity.

[vkobe]

star turn into black hole, because their core turn into iron, so iron nuclear fusion take energy instead to produce energy, it is why they collpase to neutron star or black hole

2 stars in main sequence have enough hydrogen or light elements to made efficient nuclear fusion, so if their nuclear fusion produce energy they dont turn into black hole

so if you merge 2 stars you will only add more hydrogen for nuclear fusion

[OuijaMawl]

What your describing is the end of the life of super or hyper-giant type star. one that is much more massive than our own sun. That could possibly be one way a black hole forms your correct, though like I said it has more to do with the effect of gravity on the star's core when the star collapses. However, most main sequence stars do not ever produce Iron they often die after they exhaust all their Hydrogen and Helium reserves then they will expell their outer layers in a small nova.

A super/hyper giant has immense gravitational pull at its core and all the gases are being compressed to generate enough heat to fuse those elements together. As you get heavier elements together you have more weight and the density of the core increases which will in turn generate more gravitational pull as more of it is created. At the time of the super/hyper nova the core will collapse because it cannot overcome the force of gravity anymore and it gets crushed together until it can once again hold off the gravaitional pull its exerting if it cannot withstand the force exerted on it, gravity will continue to crush it to a single infinate singularty and you have a black hole.

Two stars may merge, like I said science doesn't know for sure what happens as such an event has never been observed. If those two colliding stars are massive enough (as this post has not said it has to be two main sequence stars) they would exert enough gravity to potentially crush both stars into a singularity. This is hypothesis so its not proven just a theory.

Lastly, if you merge two stars the new star would be composed whatever the two original stars were composed of not only Hydrogen. Most stars contain a great deal of Helium as well and if they are larger then they would also contribute other heavier elements as well.

[AstroLuke55]

This is some really informative feedback! If you haven't watched the video make sure you do so!

[vkobe]

Originally posted by Callipso:

What your describing is the end of the life of super or hyper-giant type star. one that is much more massive than our own sun. That could possibly be one way a black hole forms your correct, though like I said it has more to do with the effect of gravity on the star's core when the star collapses. However, most main sequence stars do not ever produce Iron they often die after they exhaust all their Hydrogen and Helium reserves then they will expell their outer layers in a small nova.

A super/hyper giant has immense gravitational pull at its core and all the gases are being compressed to generate enough heat to fuse those elements together. As you get heavier elements together you have more weight and the density of the core increases which will in turn generate more gravitational pull as more of it is created. At the time of the super/hyper nova the core will collapse because it cannot overcome the force of gravity anymore and it gets crushed together until it can once again hold off the gravaitional pull its exerting if it cannot withstand the force exerted on it, gravity will continue to crush it to a single infinate singularty and you have a black hole.

Two stars may merge, like I said science doesn't know for sure what happens as such an event has never been observed. If those two colliding stars are massive enough (as this post has not said it has to be two main sequence stars) they would exert enough gravity to potentially crush both stars into a singularity. This is hypothesis so its not proven just a theory.

Lastly, if you merge two stars the new star would be composed whatever the two original stars were composed of not only Hydrogen. Most stars contain a great deal of Helium as well and if they are larger then they would also contribute other heavier elements as well.

https://en.wikipedia.org/wiki/Blue_straggler

star=massive hydrogen storage if you merge your massive hydrogen bags you will only get a bigger hydrogen bag, so only a bigger star

the star need to reach iron level core to have chance to turn into black hole or to encounter another neutron star or black hole

helium can still be good for nuclear fusion, so you need to reach the iron, all lighter element than iron are too good for nuclear fusion, so even if they turn into carbon you will get white dwarf or a red supergiant that will turn into supernova

for me star=main sequence or red giant

so your hypothesis is about white dwarf, neutron star and black hole merge

[OuijaMawl]

Yes, an I agreed with that fact that two main sequence stars would create a larger star composed of what made up the parent stars.

I am saying that not every star merging event would produce the exact same result, larger stars consist of more materials than smaller ones and if you had two very large stars merge together the gravity of the new star could possibly initiate a supernova that could in turn create a black hole.

Of course neutron stars can merge to create a black hole though its not exactly what I am implying.


https://en.wikipedia.org/wiki/Thorne%E2%80%93%C5%BBytkow_object

Here is information on the other type of merger I mentioned, a small neutron star colliding with a supergiant star.

[vkobe]

sincerely i never heard than 2 stars merge result in supernova

https://en.wikipedia.org/wiki/R136a1

seem no and some hypothesis say than this star was created because some stars merge together to made this star

so if you merge 2 big stars you probably create a r136a1

https://en.wikipedia.org/wiki/Pair-instability_supernova#250_solar_masses_or_more

anyway seem than some supernova just destroy completely the star and dont let black hole or neutron star

because you said 2 stars merge, not a neutron star merge with another star

[OuijaMawl]

Originally posted by vkobe:

because you said 2 stars merge, not a neutron star merge with another star

Originally posted by Callipso:

Some therorize that a small dwarf star could merge into a larger supermassive type star where the dwarf becomes a new core and extended life for the larger star

I'm afraid I did suggest that very thing. it was only one of the possible outcomes I gave.

You seem to be very sure of your predictions, I won't continue to waste my time if you are so solidly convinced that there is only one outcome to this question.

[vkobe]

Originally posted by Callipso:

. Possibly two colliding sun could be the birth of a black hole

you didnt suggest neutron star or white dwarf in this sentence

it is not my prediction but what scientific have theorized or discover and i never see them suggest than 2 stars merge will result into black hole

and i already explain you than because hydrogen your stars merge cant turn into black hole before some millions years, best case your big star can turn into black hole in some hundreds thousands years, but only after your big star has depleted its fuel, it is the % of iron in the core the key to turn your star into black hole, if the core can still nuclear fusion no black hole is possible before the shut down of this nuclear fusion

so if you merge your 2 suns you just bring more fuel for nuclear fusion

[AstroLuke55]

Well in the video, when I test this it makes a supernova sooo not sure how 100% accurate the simulation is. Based on other responses in this thread it seems to be mixed. Thanks for the info everyone!