The Amazing Eta Carinae - Sixty Symbols
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- Опубликовано: 2 окт 2024
- Professor Mike Merrifield holds a Titanium Eta Carinae in his fingertips.
Deep Sky Videos: / deepskyvideos
See more links in the rest of this video description.
Additive Manufacturing at Nottingham: bit.ly/1N2utIS
The 3D structure paper by Steffen, et al: bit.ly/3D_ETA
History of Eta Carinae: bit.ly/1CtOxbi
3D hydrodynamic simulations of binary colliding winds: arxiv.org/pdf/1...
Mike Merrifield on Twitter: / profmike_m
Visit our website at www.sixtysymbol...
We're on Facebook at / sixtysymbols
And Twitter at #!/...
This project features scientists from The University of Nottingham
bit.ly/NottsPhy...
Sixty Symbols videos by Brady Haran
The solar wind animation thing blew my mind.
OmnipotentO the most mind blowing bit of the video for sure
that would be stellar wind ;)
OmnipotentO looks like some visualizations on winamp
+witnesszer0 MilkDrop forever
It is such a joy to listen to this man. Shine on Professor Merrifield, shine on.
He is a bit of a crazy diamond ...
Now there's a look in your eyes... like black holes in the sky.
Just stay away from his Twitter
"the gun's probably not loaded and it's probably not pointed at us."
least reassuring metaphor i've ever heard...
This is great, so much better than those dumbed down versions of astronomy videos on RUclips.
To be fair, a bit of maths and physics exposed and explained would be nice too. But I'm studying just that, so I don't think everybody would appreciate it.
Defeshh or understand it. While I love science, I was absolutely dreadful in maths as a student, so it'd go right over my head.
+Augasmic One thing I have discovered about maths is that the best way to avoid doing maths is to learn more maths. That is, maths is basically just a bag of tricks to avoid doing difficult work, learn the harder tricks and you can avoid much of the tedious and laborious calculations that they force us to do at school.
+Lutranereis Not to mention TV series - yuck!
+Lutranereis Not to mention TV series - yuck!
So did the star have a premature ejac- sorry, ejection....
Ryan Airth If there really is a Gamma Ray Burst coming our way, we should probably use protection. Y'know, against STD's. (Spatially Transmitted Disasters)
Now I know how new stars are born.
+Ryan Airth lol
Great video
It was very interesting and informative
Gamin'Central thanks...
Sixty Symbols I agree, Eta Carinae is one of the most intriguing objects in the night sky, if only we could fly there and study this monstrosity of a star
+OnePercent
You are so right I wish we could do that with every star and planet. Then we would know so much more about the universe and learn not just about stars and planets in the observable universe but other parts of the universe as well.
It's probably already gone supernova.
Not knowing keeps me awake nights.
Great video... the really interesting thing to give us perspective and show how small we are in this universe is that any observation (200~100 years ago!)) or picture/measurement done more recently a few years ago doesn't represent what the star looks like right NOW at this moment in time... it just gives us a distant glimpse of the state of the star... ~ 7500 years ago!!!! That's pretty impressive stuff!
Prof. Merrifield is the best!!!!
I would love to get hold of one of those 3D Eta Carina models that was used in the video.
I've got a new name for the surrounding structure: Testicular Nebula.
imfrommanndame xD
@Alan J you cant just assume the testicles chromosomes and/or gender. You have to ask the testicles what its preferred pronouns are.
i actually personally identify as an interstellar testicle, and i'm very offended by this
When I was a little younger, that picture captured my imagination. I love this.
I am speechless, wonderful demonstration of the observed astronomic structure. Even for someone, who studies on Fluid Mechanics, this was very clear and understandable. Branches of education need to use more visual elements, simulations and physical objects.
"Cool in the amazing sense"
I'm stealing that phrase!
There's something beautiful about that solar wind simulation
I know a bit about this. When I looked up "purple star" on Google, Eta Carinae came up and I searched up some 1K wallpapers for my PC and then Eta Carinae and the Carina nebula became my PC wallpaper :)
One second is defined as the duration of time it takes for 9192631770 periods of radiation corresponding to the transition between the two hyperfine levels of the ground state of a Cesium 133 atom. Don't mind me. Just typing this comment around on RUclips until I can fully remember it.
If only we could go out and travel all the way to Eta Carinae and have a peek for ourselves.
Wow. I wouldn't mind joining that mission at all :)
A hundred plus goddamn times the size of our sun....
That is a scale of colossal that I cant get my head around o_0
And thats still with 30% of its mass shed already?
Shkotay D You should look into astronomy a bit more, our sun is rather small in terms of solar masses
SilvaDreams That I do know. Many astronomers have described our sun as "modest", but compared to the planets, it is titanic. If I see it right from the reading I am doing, Eta Carinae makes our sun look like the earth does to our sun. That is fucking mind-blowing. I wonder what will happen to the surrounding nebula when that thing goes?
Shkotay D
It gets blasted off into space to eventually get pulled in to another sun or solar system.. Though that would take a while and we also have no clue if it has actually blown up since it is 7,500 light years away.. We're lagging behind by about 7,500 years.. Behold the limitations of light
SilvaDreams I appreciate the info man. Crazy stuff in that neck of the woods. I hope i am still around to see it kick the bucket. But if the professor is right it could happen tomorrow, or 50,000 years from now.
Shkotay D It is currently thought that solar systems like ours started in nebulas whos balance were disturbed by an exploding supernova. Compressing part of said nebula for gravity to make it collapse on itself.
This events happen on a scale that we can't fathom, but even though it seems to be extremely destructive occurrences, we ourselves are but the byproducts of these events. That last part is, to me, even harder to fathom.
"I hope i am still around to see it kick the bucket."
I'm not quite sure I am though. A new object as bright as the full moon appearing in the sky for about a year would be very interesting, to say the least. But it could have some nasty side effects.
Of course not as bad as a direct hit from a gama ray burst that would blow off our atmosphere in seconds and it would be over with. Still that could be desastrous for the ecosystem.
I bet Eta carinae already blew up. The light just hasn't reached us yet.
That is a distinct possibility. Given that it seems like it will happen within the next 200000 years, and given its location relative to us, it only could have already happened 7000 years ago, there is the chance it may have done so already. But there is also the chance that it may appear more or less exactly as we see it (an image "sent" 7000 years ago) and that the explosion has yet to happen, or could have happened a minute ago, or 1000 years from now, etc. amazing, isn't it?
That is a distinct possibility. Given that it seems like it will happen within the next 200000 years, and given its location relative to us, it only could have already happened 7000 years ago, there is the chance it may have done so already. But there is also the chance that it may appear more or less exactly as we see it (an image "sent" 7000 years ago) and that the explosion has yet to happen, or could have happened a minute ago, or 1000 years from now, etc. amazing, isn't it?
And now we want to see a video of that uber 3D printer!
Getting my hands on one of the largest telescopes in the country this year. Might have to try pointing it at Eta Carinae,
Dear Santa, I have one wish for Chrismas this year. I would love to let the rest of the world see a supernova. Thank you. Yours small child.
I wanna see a video about those 3D printer guys. That sounded pretty awesome too =)
Wow so interesting! Brady, you should start another channel on condensed matter and have Professor Philip Moriarty on more often, pretty please :)
Sixty, I can see the "person" You are holding the picture upside down, if you turn it around you can see the bright head, the arms below if and the fading body.
Does anybody else also think it looks just like dz² orbital model from organic chemistry ?
No, nobody else.
The 3D shape reminds me of the electron's d-orbital!
That is quite obviously the Nihilanth.
"Small person" doesn't really capture what a Homunculus is. It's a semi-magical idea from back in the Alchemy days of a person small enough to fit in a mason jar.
"homunculus" means "little man/person" so yeah, it does capture what a homunculus is. You don't need to bring up alchemy or preformationism to get the point across.
xenophobe76 If you're saying that I'm being pedantic, I'll agree. Even so, I'm still going to say that there's content lost if you say "homunculus" means "little person". My mother's relatively short and my daughter's less than three feet tall, but neither is homuncular.
Wow dudes chill! Humunculus means small person in Latin, but the use in Enlish might be different. But in Latin it has nothing to do with alchemy! :)
Jimmy De'Souza Depends on how big the jar is :|
Elliott Collins Was it not actually an ancient idea of a little person living inside your head and controlling your actions? When the ancients reffered to a humunculus they where reffering to that little person they believed existed in their head, not a little person in a jar which sounds to be a much later concept.
I am watching this because I don't want to write on my project... but guess what - 3D printing is a topic in here as well. wow
On the subject of this star wiping out all life on Earth, the chances are exceedingly small surely. Do gamma bursts have a wide expansion cone? If they don't (and I don't think they do,) given the total range of angles that the burst could fire off, what are the chances that it would happen to fire in our direction?
Could the nebula be caused by the two stars coming to close to each other and then flinging off some of their mass. Or maybe the smaller star was part of the bigger one.
I really do hope it blows soon, it would get people to look up to the sky =P
***** It could have blown for all we know, it takes years, hundreds if not thousands of years, for that light and information to reach us.
And yup in Eta Carinae's case it would take 7,500 years for it to reach us.
SilvaDreams He means he hopes we can see it blow up soon
The shape reminds me of a D type orbital
McBango But a d type has 4 lobes?
This pleases Mike Hock In the picture he holds up it looks like a ring. I should have been a bit more careful and said P type instead.
8:06 DAYUMMM that ring is TYTE!!!
l have been seeiing something strange in the sky for the past month maybe a bit longer, it started off as a bright green orb, now the orb wasnt very big, but after a while it faded away (l would say 3 days) after this, it was gone for a while and about a week later, on the same spot where lsaw the green orb there now is a slightly bigger brighter white orb.. I would like to say that it is a star but, I don't know to much about astronomy..
All I can say is, l've looked at the night sky many times before because it amazes me, and l've never seen something on that spot, do you maybe have an idea what l am talking about?
Beta Carotene? I heard that you can see it better at night.
Amazing indeed
It just rang to say it has already blown up and the light is on its way...
This is great. Learned so much about supernovas and Eta Carinae. Thank you!
"it looks like pacman eating a power pill! *smug face*"
never change, Brady.
My favorite target for astrophotography when I was living in South Africa
wow Brady I'be been a huge fan of your videos for a while now, but this one is now my favorite :) keep em coming
Up until this point I thought that the sun was the brightest star on the sky, but now I have been corrected, Sirius is brighter, how can I be so blind :(
The implied meaning is "night sky," and since the Sun isn't visible in the night's sky, then Sirius is the brightest star.
The sun is only an average star in brightness. There are thousands of stars which are brighter. However it appears brighter because it's alot close obviously :) Some are massive giant stars, but a long way away, while others are small and close (like Alpha Centauri (a dwarf star 4 light yrs away). Hope that helps.
After I saw the 3D model of the explosion, and he mentioned how it seemed to be axial, I thought it would be cool if there were a planet of sentient aliens orbiting it that dropped some sort of bomb into their sun to expel some of the gas to delay its' detonation. Then he talked about the other "star" and I figured that if an alien civilization can make a bomb that big, they could make a "solar wind generator" to protect a planet closer to the sun to make it habitable for research or what have you. It'd be an interesting story, if nothing else.
Thank you Brady for another wonderful video. I enjoy all your content very much, also on your other channels, which I think are among the best on RUclips.
as bright as full moon but will still just be like star sized right?
3D printing is so pathetic at the moment. Really disappointing. I'm not desperate to print cars or working phones or guns, but something bigger than a golf ball, and with the texture of sandpaper would be nice.
Absolutely my favourite object in the sky. Thanks for the talk!
good going guys! eta carinae hods a particularly good spot in my heart so i jumped right on this video when i saw the name. it was the first star i ever learned the name of (after the sun, sol, whatever) and was listed in my first astronomy book as the largest known.
Homunculus Leonard from Big Bang Theory hahhaahahaha
So, in theory, it's possible that Eta Carinae has already gone supernova and released the gamma ray burst withing the last ~7500 years, and it's already headed right at us?
Yes. And we won't know until it's too late. Probably not pointed right at us though, so don't worry xD
I like how he says stars typically sit around for millions or billions of year stable, but this one we see it the odd one... I don't think stars are as stable as people think...just consider the fermi-paradox too.
I agree I love the more detailed information about the operations of astronomy and physics
Homunculus was most commonly used to describe the little man inside the sperm.
Early descriptions of embryonic clusters.
Where are the 3D modell printing files? Are they gone?
Isn't this video more suitable for Deep Sky Videos? I'm subbed to both channels, but I was just wondering, :)
Could be aliens building infrastructures around the Star and using its energy they're mining from the poles of the sun.
Isaak Arthur an amazing RUclipsr made a mind-blowing video about this idea.
Guys this video needs a warning about the flashing lights in the additive manufacturing portion!
+Sixty Symbols
after being fascinated by all things astronomy since i was a kid (now 35) a had never known a star could 'almost explode' and keep going before! in fact in the numerous documentries i've seen over the years this image is usually presented as an example of the aftermath of a supernova.
Is it possible that the hourglass shape of Eta Carinae is actually created or influenced by the orbital plane of the companion star? I can imagine a situation in which the companion star is pulling or blowing away the original spherical shape of the explosion emanating from Eta Carinae. It seems one plausible explanation for the reason Eta Carinae did't completely destroy itself involves interactions with its nearby companion. I wonder if it is possible to match their combined orbits from the past and check that with the recorded observations of stellar activity.
4:18/10:24 "There's another little star..." (even though It is not really a little star, but 30x larger than SOL) : Have Astronomers given that 'little star' a classified name to complement? or supplement? the other much bigger star as Eta Carinae? If they did not, I'd classify it as 'ETA MINOR'CARINAE (like ETA(MAJOR)CARINAE, imitating URSA MAJOR and URSA MINOR...
I miss these guys, Copeland, Moriarty, Merrifield, Padilla, Grey, Eaves and Bowley. We don't get them as often.
i produced something like that in the bathroom the other day
What would happen if a pencil had a complex length? As in complex number.
It kind of looks like how many theologians described the argument for and then against god revolving around the babel fish.
im pretty sure it blew up already, we will see it in some years
I was wondering why Eta Carina was on Sixty Symbols, as Brady usually puts these kids of videos on Deep Sky. It looks like he was just co-mingling the channels to get some more much deserved attention on Deep Sky. If anyone here is wondering what that channel is all about, I do strongly recommend you go check it out. IF you're into astronomy, it's right up your alley.
Anyway, this is also my favorite star, because it's just so strange and mysterious. Professor Merrifield, as usual, has impeccable taste.
All right, I know about this 301 views thing, but now there's 1027 views and 1132 likes... What!
I ordered a plastic 3d printed model of Eta Carinae last night, I love this stuff.
Homunculus nebula? Who named that? It looks just like a flower to me.
Look into Plasma Cosmology/Electrical Universe for explanations as to what causes the dual lobe form.
I clicked on this Sixty Symbols video because I thought the title image was a photo of horse droppings. I was curious to find out exactly what they were calling 'manure.'
Sounds like it would be a type Ib/c supernova. It's going through thermal pulsations and shedding its outer layers. When it finally pops, the hydrogen and helium lines may be absent from its spectrum.
This kind of ends on a cliffhanger :) The angles match... how do scientists interpret that?
Martijn van de Streek Well obviously the explosion was deflected by the stellar winds of the other star.
PINGPONGROCKSBRAH Also the trajectory of the smaller orbiting star could have some impact on this.
Pac Man eating a Power Pill!!!!
you know you are looking at massive star if it´s companion star with potential to evolve into black hole seems to be tiny in comparison :D
+lamebubblesflysohigh The prof stated the companion star has ~20-30 solar masses. You only need 3 solar masses to form a black hole.
+Sith Smasher That may be true, but a supernova explosion would greatly reduce the overall mass, so its fate would depend on how massive the remnant core would be.
+Sith Smasher I belive that's incorrect.
You only need a star 3-4 times the mass of the sun to have a supernova. Not a blackhole, there are still neutron stars in the middle.
If your going to leave a link to DeepSkyVideos then you better upload some new ones Brady!!!!
You guys should watch. .. Bill Donahue...our secret lives.. if it hasn't been deleted. .
"The pair of bollocks nebula"
Yes, that's right a binary star.Inside of those bells the pressure is at a tremendous rate.Those bells function at an equilibria.Right now, this double star configuration is a balanced dynamic.
But it isn't going to produce a supernova,isn't it powerful enough to produce Hypanova?
After Prof Mike saying that as a supernova it would be a bright as a full moon for a year there was me eagerly hoping that it blows to give us a light show. Then I read "it is never visible north of latitude 30°N" Meh! No fun.
why dont you make a 3d model of that in Unity3d or Unreal Engine then watch it with the oculus rift? It would've been amazing.
So... the smaller Star still runs circles around eta carniae and by that creates the 'pacman mouth' Inside the exploded Star... Question is: will the little one grow as of the erupted material it is confronted with and by that maybe even suck in all the left particles of Eta carniae?
I wouldn't have minded at all if this had been an hour long discussion about Eta Carinae. This is only amking me hungry for more.
I have only a high school education so hating just a question.
Is it possible the two stars collided? The slower, larger star is in the end stage of its life and starting to collapse, causing an increase in density(gravity). The smaller, fast star spirals in and collides with outer fringes of the star knocking enough of large star mass away to return the gravity well to the status quo. Also some of the small stars newer fissionable material gets left behind injecting new life into the big star and speeding up the smaller star yet more. Of course this could just be the ramblings of an idiot.
What a long, violent, drawn out death. This star just doesnt want to go. Interesting.
Explosions! Should get Micheal Bay to do a Sixty Symbols video.
Is there a biology youtube section for the university of nottingham?
Hey, random comment. We hear about the *potential* threat from the release of strange matter into the universe from the collision in quark stars. They would appear to be neutron stars from the outside. Ish.
But we also hear how most planets get their heavier elements from the collision of neutron stars.
Seeing how they think there are billions of planets in the milky way, and they dont seem to be infected by strange matter, doesnt this place an upper limit on the number of quark neutron stars?
I saw the images of the iteractions between the two stellar winds, But you did not indicate if it was a computer modeling or actual imagery, or both. can you expand on that?
It's cool that that 3d print is titanium, but the print would be so much more useful if it were about 20x larger.
It will never go off. These are plasma discharges associated with electromagnetic forces. This is not a supernova or exploded star.
3D printing a star, especially eta Carinae, is just flat out magnificent! I want one.🌟🌌
can you tell us what you know about ASSASN-15lh?
where can I buy my own Eta Carinae model?
Would you please tell us what publications (by name) you are citing in this video?
Like when you throw up a bit and feel better; but you're still going to hurl, you just don't know when.
Does anyone here watches Arrow? I mean, this guy not only looks a lot like detective Lance. He also talks like him his voice is almost the same. Really cool.