Gravitational Wave Background Discovered - Spacetime is Vibrating!
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- Опубліковано 1 чер 2024
- The Cosmic Gravitational Wave Background was discovered! Spacetime is vibrating with the constant thrum of gravitational waves from supermassive black hole binary systems (SMBHBs) but also possibly new physics from the Big Bang!
00:00 Introduction
02:02 Gravitational Waves Explained
03:53 Using Pulsar Timing Array to Detect Gravitational Waves
08:15 PTA Collaborations
09:10 How they know its the Gravitational Wave Background and not something else?
11:50 Final Parsec Problem?
12:54 Nearby SMBHBs?
13:29 New Physics from the Big Bang?
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🧭 References:
Agazie et al. 2023: doi.org/10.3847/2041-8213/acdac6
Agazie et al. 2023: doi.org/10.3847/2041-8213/acda9a
Agazie et al. 2023: doi.org/10.3847/2041-8213/acda88
Agazie et al. 2023: doi.org/10.3847/2041-8213/acdc91
Agazie et al. 2023: doi.org/10.48550/arXiv.2306.1...
Agazie et al. 2023: doi.org/10.48550/arXiv.2306.1...
Afzal et al. 2023: doi.org/10.3847/2041-8213/acdc91
Antoniadis et al. 2023: doi.org/10.48550/arXiv.2306.1...
Antoniadis et al. 2023: doi.org/10.1051/0004-6361/202...
Antoniadis et al. 2023: doi.org/10.48550/arXiv.2306.1...
Antoniadis et al. 2023: doi.org/10.48550/arXiv.2306.1...
Antoniadis et al. 2023: doi.org/10.48550/arXiv.2306.1...
Reardon et al. 2023: doi.org/10.3847/2041-8213/acdd02
Smarra et al. 2023: doi.org/10.48550/arXiv.2306.1...
Xu et al. 2023: doi.org/10.1088/1674-4527/acdfa5
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Earth
14:44 Cosmic Strings?
16:24 No Anisotropy?
17:47 What's Next - Наука та технологія
🔴What caused the Brightest Explosion of All Time? ua-cam.com/video/BuNQHztGe5A/v-deo.html
Pair-instability Supernova.
string theory is out btw
nothing however precludes the fabric of space time vibrating
they are not same thing as one exists other was proven false
as an old forklift driver i wish i could have afforded a higher level education because this shit blows my mind. the detail, the coordination, the scale of the project, i feel like i really missed out. thank you to launch pad astronomy for being able to bring some of it down to my level so i can appreciate it.
Ey ron Walsh, Suggestion: be kind to yourself. As long as you're alive, you can learn. Glad that you're here enjoying astronomy! Pay those humans that may want to put you down, no mind...v
You have the opportunity to learn your whole life. Dont be so hard on yourself. Forklift driving has gotta be done by someone or these guys wouldn't be able to do their thing. So in some way you helped them get there even if it is in a small way.
I understand exactly how u feel .
You may not be educated but that doesn't necessarily mean you're stupid.
If it weren't for forklift drivers, we would have no astrophysicists.
We are lucky today, to have all of this information at our fingertips.
Wow, your videos get better each time! Such complex findings are presented in such a clear non-clickbaity manner, with pro-level graphics and fantastic presentation. Well done to the entire team, I'm off to your Patreon!
Thank you so much! And I’m a
team of one so it’s especially appreciated!
@@LaunchPadAstronomy you are kidding! You deserve some sort of an award my friend, genuinely very well done!
Wow, I'm surprised you are a team of only one person. Your videos are of such high quality! And you explain complex subjects in a manner that is so easy to grasp. Thank you so much!
The science behind this work is astounding. Thank you for for making it accessible (and understandable) to me.
My pleasure, and thanks!
Regardless of whether or not there is new physics, it is awesome to see how we can use the remnants of stars thousands of light years away to spot ripples in space time
What an astounding measurement method. I had genuinely thought i wouldnt live to see such a profound discovery in space again in my lifetime. Maybe the golden era of astrophysics isnt over after all :)
I have not been so keyed in while being relaxed enough to take in information and actually then be able to comprehend the breakdown and therefore appreciate the larger picture implications for the study of the Gravitational Wave Background. I especially like the part about using pulsars in galaxy-sized detectors and cosmic strings and not be taken out of it by the novelty, and therefore space out! Thank You, Christian Ready, for this wonderful new and kind exposition and audience friendly layout that also enhances our knowledge, curiosity and wonder! Truly a launchpad! And I imagine many of us did not need to feel openly nervous if we got that or not! We learned so much more than we expected to, I imagine, and that's all thanks to your friendly and concise and articulate explanation for us, the daily viewer, without losing the exciting rigor and articulation! Because we can always learn more if needed afterward about particulars rather than get right into the intimidating nitty gritty of say Lamborghini engine mechanics that might go over my head! I'm happy to say I'm happily learning! Thank you for meeting us where we are at! And moving our general cosmic knowledge forward!
You consistently have the best explanations and discussions. They are always easily accessible and deep enough to always be interesting.
Thank you so much!
Not to mention Christian's sense of humour! There's always a dollop of it in every video; it's always there underneath. I think we should christen it the "Christian Comedic Wave Background" or the CCWB. 😀@@LaunchPadAstronomy
Current generation of students are lucky to have teachers like you available for free... mind-blowing sir
So nice of you, thanks!
You really are capable of expressing incredibly complex subjects in a clear and comprehensible way. It's a very nice quality. Also, as someone pointed out in the comments, i cannot describe how much i like and respect the fact that you do not resort to clickbaits titles and similar things. I strongly believe that all the divulgators that go down that path they actuallys start doing more harm than good. In a period where everything is becoming as clickbait channels like yours are a beacons of light in a very dark universe!
Thanks, I appreciate it! Clickbait is, unfortunately, a good way to get people to click on a thumbnail. I just hope that my video delivers on the promise of its thumb and title (and therefore, isn't clickbait :) )
@@LaunchPadAstronomy well it's kinda strange really, while not going for the clickbait road may indeed make you have less views than channel that do use it on the short therm. But they are short lived, they set incredibly high expectations that they can never achieve, viewers will always be deranged conspiracy theorists or simply curious people that finish the video unsatisfied. You, instead, go for the real deal, the quality, the reality. When I watch one of your videos I am captivated even when I'm having to use all my mind to keep up with what you are saying, maybe I like it even more in those cases. When I finish one of your videos I am both satisfied, more knowledgeable and, more importantly on your side, I'm craving for the next video (at the point that in 2 weeks that I discovered your channel almost ran out of videos going back since the first you published) this makes for a perfect recipe for long term viewers and I think maybe you are not gonna be the most clicked channel but you are gonna be clicked for years and years to come. Sorry for the lengthy reply, I was never good at saying things in a few words!
The video is very well done, thank you! I had read the NANOgrav abstract and understood a decent chunk, but this video gives me a much better understanding. This is wonderful education.
Great explanation, thanks LpA.
It seems we have a long way to go. Our understanding of the universe is changing as data comes from James Webb and Gravitational Wave Observatories.
Very good clear build up explanation of difficult matter (and space-time). Thank you for providing this great content. Looking forward to the new James Webb content 😊
Thanks for the clearest interpretation so far ⭐⭐⭐⭐⭐
Riding the waves is the future of space time travel.
You are ways making me more enthusiastic about astronomy.
I believe a day will come when we will b able to see the universe pictured by gravitational waves .
Love the cosmic super strings idea! Extremely good video, excellent presentation, thank you.
Thanks!
I'm reminded of a quote from Karl Popper “If some discoveries follow our predictions, we will look on them with particular distrust”
This is the most mind-blowing science you've ever reported on this channel. Amazing work
Hard to believe that was 8 years ago that LIGO announced that first detection.
Oh man. Don't hit me with those black hole waves so early in the morning.
Very cool! Also very cool was your reference to Dead and Company's final tour and Mickey's percussion symphony (Man, that guy has to be exhausted at the end of every show!!!). Shame Kreutzmann wasn't part of the action, but ......We saw them at the Hollywood Casino Amphitheater on 7/7/23.....it was a great show. Sorry to see them go (at least in their current form). Wish I'd made the trip to San Fran to see the last one. Also managed to see Jerry's Last show back in 1995 at Soldier Field in Chicago. Had I know it was his last show, I would have paid more attention, but it was a Grateful Dead show, so....busy having fun. What a long, strange trip it's been....from the Dead to gravitational waves!
I love the education and witty humor in your videos. You got yourself a bew subscriber 👍
Dust off those rusty strings my man, you can make them shine like your explanations! I watch your videos and I can feel my head expanding, normally stuff flows in one and out the other, but because you explain things so well stuff sticks. Thanks man, I have the notion that Kreutzmann and Hart are at the bottom of most vibrations, but Pigpen started them off.
Whenever I listen to an old show with Pigpen, I think 'man how I wish I could have seen one of those!' For this video I spent more time watching footage of Mickey on the Beam than researching the science. I so want to play that thing!
So much information in such an Easy to understand way! Thanks So much!
You got it!
Finding evidence for cosmic strings would be incredible!
So exciting! Thanks, Christian!
My pleasure!
This is interesting stuff and impressive how creative scientists can be at making measurements. And btw, were you at that Dead and Co show here in Boulder? I think this year was their last.
Cheers for this… all your content is spot on interesting 👍👍👍
Thank you!
Thank you sir for presenting this material in such a way that I can understand it.
Amazing job as usual Christian
Thanks, it's much appreciated!
Thanks for covering this. Great as usual! ...please try to interview someone working on Vera Rubin telescope!
Thanks that’s a really cool idea!
@@LaunchPadAstronomy Glad you think so! Your coverage of James Webb was so impeccable and it would be cool to hear more about Vera Rubin as it comes online. Love what you're doing!
Got to love the applicational use of neutron stars... though I may have taken it to the extreme in explaining the large scale anisotropies of the CMB. Good for me, bad for Inflation Theory.
not the 1st use, though. The practical application is deep space navigation, again, via timing.
Pulsars are now my favorite!
Awesome video. Thanks for sharing.
The heartbeat of the universe
Adding real capabilities to this new dimension of astronomical observation is truly exciting. Thank you, again, Mr Einstein.
Hi. Just a small criticism. At a time interval of 8.38 mins at the lower half of the image showing the European Pulsar timing array, you have Jordrell Bank, Uk and the Sardina, Italy radio telescopes caption accidentally swapped around. The reason why I know this is that I have recently camped at the foot of the Jodrell Bank (Lovell) radio telescope for the last 4 days. Please keep up the great work, I have followed your channel for years and I have always found your enthusiasm for all things space-related inspiring.
Rats, I knew I was going to get one of those wrong. But I’d rather know the truth and who better to tell me than someone who was there!
It makes sense that there are ultra-low frequencies of vibration. To my understanding, all of space is energy and that energy creates positive and negative accelerations of every imagininal speed which then create vibrations accordingly. There are probably vibrations slower than these, even though these are extremely slow, and faster than have been found to date. We can't know about them until somethings happens that we can ultimately detect and then measure. Using pulsars to measure is amazing, but, as you said, they can present their issues, too. Persistence, perseverance, determination and lots of technology, math and science... Thanks, Mr. Ready.
Thank you for the work 🙏🏻
So that explains all those vibrational waves I've been experiencing. 😂 Thanks for posting. v
LOL, happy to help :)
Of course yours is the clearest explanation of this news. Thank you
Such cool stuff, I am going to think about this for the next 43m 24s (The length of Däfos by Mickey Hart) Thanks Christian
Excellent choice :)
Fascinating
🎶🌎 “… A Bright Blue Ball, Just Spinning, Spinning Free, Dizzy With Possibilities!…”🌎🎶
in a sea of gravitational waves, 🛰🎶
just flowing among those vibrating stings… 🚀🪐
Incredible ... previously detected gravitational waves measured a deviance the size of a proton (1/200th of that, I just heard 😂) ... imagine the sensitiviy needed for the background "noise" of gravwavs
there are miro earthquakes that far exceed that deviance, all the time. the systems that stabilize LIGO tunnels are probably the best thing ever engineered outside JWST. still, those stabilizers cost 1bln $. money well spent I would say.
This is so incredibly and unbelievably exciting! I can't wait to hear the results of the complied data for the IPTA.
10:44, those error bars look pretty big compared with the fluctuations.
Yep, but it's still a 3-5 sigma which in astronomy is not atypical. With more data, we should see those error bars narrow.
@@LaunchPadAstronomy I just mean chi-squared (via chi-by-eye) is too small, at least around 90 deg, but maybe not. Only one point is more than 1 sigma away from the model.
The notification button is not allowing me to change the setting to “all”- which it switched to none. I did leave feedback for UA-cam.
If only I could use those waves to ride back in time to the year 1999.
There's a lot of talk of Space-time and slowing your perception of time near dense gravitation like a black hole event horizon, but how do we go backwards?
And the sound that I'm hearing is only the sound of
The low spark of high-heeled boys
Steve Winwood is the best. That's such a fantastic song! I'm going to listen to it after I finish this post. Be well. v
Super Cool!
Thanks!
Wow, thank you!
P.S. Pune - the city in India is pronounced as "poo-nay" :) great video sir..
Appreciate it, and sorry for the mispronunciation!
Anyone here that has tripped on some very good mushrooms already knows that cosmic strings are very real. You can hear them vibrate.
Need pulsar timing signals turn to ELF signal and play back with hight speed - and hear "sounds of universe".
14:44 This concept shouldn't come as a surprise as gravitational waves would naturally develop caustics, just as waves in a pool.
Once we measure the exact harmonics of the GWB I suspect we'll have to rename it the Big Bong 🤭
Maybe/could have/should have/would have ...OMFG!!
Hahaha as a dead head. Nice, imma musician too and Brian may is one of my favorites, so happens to be into space and music too, seems i have a demographic.
Moving a pulsar by 20km wow, how much would it move the earth
I have issues believing that it is possible to detect displacements of 1/200 the size of a proton.
What can I say, we're clever apes :)
Universe goes brrrr...
Very good, thanks, but there seems to be a lot of wishful thinking involved with this. Who knows, maybe it's the result of angels dancing on the head of a pin?
This analysis hinges on light speed being absolute in all directions and circumstances. Which we cannot prove. In fact if you apply just the known error bar of experimental measurement of the speed of light, it would cover this discrepancy. Our current light speed constant is merely a best guess based on measurements. It is sometimes very sad to see a lot of science spoken to as fact, which gets in the way of real breakthroughs. Remember when we "knew" how old the universe was? How's that going this year?
Waves tend to mean particles. Could this be evidence of the graviton?
What a beautiful knolege very perfect porficinal.its inflation keep going until today.thanks
the dead heads im used to seeing dont have degrees lol
I was born and raised on the Bus :)
Could the cosmic web filiments of the universe held together by dark matter be held together by cosmic strings? Could dark matter be the cosmic string cracks in the universe and dark energy be the pressure of the initial universal state to resolve space-time back to parity on the four forces of the universe back in to one force?
How does gravity resonate in an infinite medium that hs no end? The waves should not be able to bounce back unles there is an edge. Basically the wave should be something like a soliton wave.
There are trillions of huge rocks all going very fast through a vacuum it's gotta leave some kind of a wake.
In spacetime? They could, but the amount would be even smaller and impossible to detect. As it is, these take SUPER sized masses.
Aren't these gravitational waves just shock waves? Like what you see when a bomb is dropped & exploded when it hits the ground?
Sort of, except shock waves require some kind of a medium to travel through (e.g., a fluid of some sort). Gravitational waves are waves in spacetime itself!
Spoiler, gravity is NOT based on mass density. My personal hypothesis on the (maybe)>a force we label as gravity is simply the effect of the speed and /or change of speed of particles.
I have heard we may be able to detect the big bang, and may be the only detector to see before the big bang. And may be able to show if a multi-universe exists, or whatever other objects happen to collide or bounce off our universe? I have also heard that only a detector on the scale of LISA will be able to do this? I follow anything that might create new physics. Proton decay, this subject, neutrinos, The matter anti matter asymmetry, Dark Mater, Quantum Gravity! The last one being where I put my money!
How could it see before the big bang? There is a flaw in there.
Pune - Pu nay
Wait a sec. If it takes light (and gravity) about 13 minutes to move the distance of Mars' orbital radius, how can a star collapse from Mars' orbit to a few miles in 1/10 second?
I believe he was referring to the size of Mars the planet, not the size of its orbit.
Right. The core isn’t the size of Mars’ orbit but rather the size of the planet. Even then, the core cannot collapse to a city size in 0.1 s as seen from the outside. But the core is collapsing a relativistic speeds so from its perspective it reaches its final size in 0.1 s.
@@LLEvarts Ah, that makes sense. I must have taken the image of the sun eventually bloating up to engulf Mars' orbit an injected it into the description in this video.
The collar of your black shirt has powder on it.... is it powder?
Yes, I couldn't believe it when I saw it (smacks forehead).
I was always thinking our perception of space time is wrong. Some uniform unmovable solid 3D structure. Considering gravity has infinite range there is always some curvature to space time.
"Pune" is not pronounced "Poon". "Poo-neh" is closer.
14:05 - why is inflation purely theoretical? Don't we have a lot of evidence for this theory?
"Don't we have a lot of evidence for this theory?" - no. Inflation is conjectured, as being necessary. Do not confuse _inflation_ with _dark energy_ , the latter being a term to describe the current accelerated expansion of the universe. The current expansion and its (likely) acceleration is not what is meant by _inflation_ . Inflation is an attempt to avoid having to submit to General Relativity's inevitable conclusion that gravity would have made the universe one big black hole.
Right now we don't have evidence of inflation. For a while there, it was thought that B-mode polarization was detected in the Cosmic Microwave Background, which is a prediction of inflation theory, but it turned out that the observed polarization was caused by Galactic dust. That doesn't mean it isn't there in the CMB, but it hasn't been detected yet. But many cosmologists are pretty sure inflation had to happen in order to explain how smooth the CMB is and why the Universe appears to be "flat" on the largest scales. So we keep looking for proof...
How can gravitational waves be "reverberating" in an open ended universe? That doesn't sound right at all.
🔥🧇🔥
He he❤💜🙏💜🖤
Welcome in the rhealm of thentional diverentional displacemends ❤ and sphearicle translations and graventational countering (counterfeildflow💜
A cosmic leap within the eilurtley human everighe understanding 🛸
Draged particles in to the graventational countering of the disk fore thame to sching becomes thentional diverentional displasmends ❤ as cosmic translations ❤
Hello from Kazakhstan. We can create an educational and practical device and practically master Einstein’s theories of relativity or obtain, for example, new physics: Postulate 1. Light is an ordered vibration of gravitational quanta. Postulate 2. The gravitational field controls the frequency and speed of light in a vacuum.
This is determined experimentally using a hybrid fiber optic gyroscope (based on Michelson's experiment 1881-2015). Using a hybrid fiber optic gyroscope, the straight-line speed of vehicles can be measured. There is a company in China that makes (fiber optic angular velocity meter) they will be able to create a hybrid device. Please, can you come to an agreement with them? I guarantee payment at cost on my part
Duh. I've been telling everyone that for decades. But would you listen to someone who doesn't have a PhD after then name? No....
If we register gravitational waves moving faster than the speed of light, then this will mean a collision of our universe with another universe.
This will happen because space at the edge of a sufficiently large universe can move faster than the speed of light.
First like and comment
🎉🎉🎉 congrats...v
You really are capable of expressing incredibly complex subjects in a clear and comprehensible way. It's a very nice quality. Also, as someone pointed out in the comments, i cannot describe how much i like and respect the fact that you do not resort to clickbaits titles and similar things. I strongly believe that all the divulgators that go down that path they actuallys start doing more harm than good. In a period where everything is becoming as clickbait channels like yours are a beacons of light in a very dark universe!