Neutrino from a Black Hole's Heart of Darkness

[@LaunchPadAstronomy]

🔴 Hubble finds a "graveyard" cluster of black holes: kzbin.info/www/bejne/lZWXnYmEaM-UjZo

[@pops4307]

the moment he introduces himself, makes my day xD

[@LaunchPadAstronomy]

Very kind of you to say, thank you

[@michaelflanagan7788]

Slight correction at 8:55 - 0.5% = 1/200 (not 1/500, easy mistake) Please excuse me for being pedantic! Truly you've explained the theory behind the origin of this neutrino and the related research behind it very well, and the visuals are fantastic.

[@LaunchPadAstronomy]

Yep, screwed up there. Sometimes i does maths rong. :) Thanks for the kind words though!

[@krisanderson997]

Remarkable. I cant give you enough thumbs up. Your channel is educating and fascinating. You could have your own program on Magellan TV! Great video 👍🏼

[@LaunchPadAstronomy]

Wow, thank you man!

[@NatarajSubramanian]

Feeling awestruck and so tiny in front of the Cosmos after watching the animation of the TDE. 😅😌🙏 Excellent video as always! Love your subtle sense of humour. 😀 Best of luck for 100K!! 🙂👍

[@musician101]

Most of this is way over my head, I’ve just started learning about the universe a few months ago. I just wanted to take the time to comment my gratitude for your videos. You are such a joy to listen to, and you explain concepts in a slower, easy to understand way. Thank you so much for doing what you do.

[@UDoIt2]

This is crazy! BTW congrats on almost 100k!!!

[@LaunchPadAstronomy]

Thanks pal, I hope we didn't jinx it :)

[@guymanuel4260]

Nice, I just subscribed after binging the entire channel and I get a new upload.

[@LaunchPadAstronomy]

Awesome! Thank you, and I'm glad to have you along for the ride!

[@brianwebber6996_ROADHUNTER]

Awesome stuff, isn't it? Wish I could go back and rediscover this channel! Disgusting that he doesn't have more subscribers but what can ya do?? If I was younger and on social media, I'd be sharing the shit out of his videos!!

[@kagannasuhbeyoglu]

Great subject👍 Thanks a lot LPA.

[@LaunchPadAstronomy]

You bet!

[@prdoyle]

Presumably the accretion disk is initially not aligned with the black hole's own spin axis? I wonder what effect that has, when the frame-dragging effects are not aligned with the disk?

[@joedasilva134]

The amount of detail n information in your videos r amazing. it takes a lot of research n passion. I am thinking of the amount of energy that it takes to accelerate a neutrino to near speed of light. At that speed time slows down n stop them from decaying.

[@LaunchPadAstronomy]

Thanks man, I appreciate it. I'd like to make the videos faster but I'd like them to be as accurate as I can make them. As to the particle's "view" of time, you're right. A photon basically ends its "life" the moment it was created, even if it traverses the entire observable universe!

[@joedasilva134]

@@LaunchPadAstronomy 👍👏😊

[@will2see]

9:01 - Sorry Christian, but 0.5% isn't 1/500 chance.

[@LaunchPadAstronomy]

Dang, you're right. I duz math rong.

[@willinwoods]

Scrolled down for this comment. :)

[@CallMeWarg]

Hey christian! Nice video, im glad to see you are back again! Congrats soon you will be at a well deserved 100k, best of luck!

[@LaunchPadAstronomy]

Thank you so much. I do need to figure out how to make videos faster though. Ugh...

[@taith2]

That makes me think. If we know particle energy, direction and can correlate to event from emitted light we can use it to measure distance with high precision! Particle based distance ladder might be very useful! And precise!

[@Sliqhs]

nice to see ice cube getting involved with astronomy

[@eliotsalandybrown]

Christian your videos are a joy to watch 👌

[@LaunchPadAstronomy]

Thank you, Eliot!

[@dogcarman]

A five month delay between flash and neutrino would mean that the neutrino would travelling at roughly 0.9999999994 c. The mind boggles.... Edit: just calculated Lorenz’ gamma for that speed. 828 million. The neutrino has experienced less than a year of time. Dayum....

[@moonbeam0099]

So I was wondering... If a black hole can consume a star (and literally anything else in the universe), where does all that matter go if the running theory is that the center of black holes is a singularity (which if I'm not mistaken is an infinitely small and infinitely dense point)? Do black holes expand in size based on the amount of matter they consume? Is that why some are larger than others or are they "born" a particular size and remain that way indefinitely?

[@LaunchPadAstronomy]

Yes, a black hole's radius is directly proportional to its mass, so the more massive the black hole, the larger its event horizon extends from the singularity. The practical upshot is that as black holes gain mass (for example, via tidal disruption events or mergers with other objects), they grow larger.

[@vasari9198]

Once again, a very well-written and well-presented video from Christian.

[@LaunchPadAstronomy]

Thanks, I really appreciate it. ✌

[@ScullyPop]

This is the most fascinating stuff.

[@LaunchPadAstronomy]

As always, I’m delighted you’re enjoying it!

[@Khannea]

Niiiice animation !!

[@LaunchPadAstronomy]

Thanks, though I can't take credit for them. My hat's off to the folks at NASA and DESY!

[@Khannea]

@@LaunchPadAstronomy - you have a link?

[@LaunchPadAstronomy]

Yes, check out the description under references for NASA's press release.

[@Khannea]

@@LaunchPadAstronomy Damn I can literally visualise what's happening, as the detrius in the accretion disk avalanches over the rotational equator, tumbles like overcooking milk into the black hole, crashes into the emission cauldron and chokes off the violent fusion from our view. I wish some Hollywood bozo would make an SF movie of a quasar starting up in the galaxy's core, with all the orbiting stars and neutron stars and planets in orbit. That would make some NICE SFX real estate.

[@Khannea]

Fuu I realized that would be an amazing take on the Joseph Conrad book. How about we call it "Apocalypse Wow!"

[@PafMedic]

All I Can Think Of Is “C’mon Betelgeuse,Throw Me a Solid”😂😂😂,Weve Had a Cpl Nice Nights I Was Able To Image Some Targets In Orion,Finally.Awesome And Exciting News,You Have a Great Day,Be Safe,and God Bless❤️🙏🏻🔭✨🌏

[@LaunchPadAstronomy]

Awesome. Clear skies, my friend!

[@stormynebula7699]

Hello, I'm pretty new to this channel and I want to learn astronomy, but I have no prior knowledge. Are there any videos in this channel you recommend for a beginner?

[@LaunchPadAstronomy]

Welcome aboard! I do have some videos I made for my students that walk through how the sky works and goes from there. You may find this playlist on understanding the sky useful: kzbin.info/aero/PLrAnGxL8nxOHzZi2QikEwZAilC4opr18R

[@ariochiv]

Man those simulations are riveting to watch.

[@manw3bttcks]

An interesting point is that the energy wasn't put into the neutrino as a neutrino. They only interact with the weak and gravitational forces. So the neutrino is actually a product of a particle decay of a parent particle which was the one that was accelerated to high energy. The parent decayed to products including the neutrino in the parents highly relativistic frame and then we eventually detected the neutrino.

[@dwayneduval6785]

Interesting.

[@d4clovr]

i love this channel, i wanna be an astronomer for nasa when i grow up :,)

[@CLipka2373]

As this guy proves time and time again, even if you're Christian, you can still be Ready for science! I'll see myself out...

[@waynepalmar6101]

Great!

[@LaunchPadAstronomy]

Thanks!

[@cashkaval]

Another great informative video from our friendly neighbourhood astronomer.

[@LaunchPadAstronomy]

Thanks :)

[@paulandlesson]

awesome!

[@oceanlawnlove8109]

Putting in the time stamps to skip the ad, this a real one lol

[@sunpathviewer]

Nice animations. Thank you Christian and supporters.

[@yetti423]

How can you track a neutrino to its source light years? I cant even find my phone from 2 ft!

[@SonofTheMorningStar666]

Yay!

[@MrEnjoivolcom1]

Just when I thought I've seen 👀 every black hole video on KZbin! 😁

[@ainternet239]

04:30 It's not true that neutrinos pass easily through the Earth because they are so small, it's because the strength of their interaction is so weak. They mostly don't even "see" the Earth.

[@Dragrath1]

Technically as fundamental(in terms of the standard model) particles sizes are determined by the wavefunction's high probability distribution (i.e. its cross section) both statements are equivalent

[@dsdy1205]

@@Dragrath1 Translated into simpler language, all particles are treated as zero-size points surrounded by fields, and the strength of those fields determines the functional "size" of the particles.

[@muheniathili5414]

Sir. Speed of light we know is the fastest. But the particle of light call photons does not travel at speed of light again sometimes how is this possible. Just a curious question

[@LaunchPadAstronomy]

Photons travel at the speed of light because they don't have mass, so they don't require an infinite amount of energy to move at the speed of light. Hope that helps!

[@brianwebber6996_ROADHUNTER]

The speed of light can, and does change depending on the "medium" that it's going through...The 299+ million m/s speed that we think of when we hear 'the speed of light' is it's speed in a vacuum.

[@Dragrath1]

@@LaunchPadAstronomy They are asking why light doesn't always travel at the speed of light i.e. when not in a vacuum not why light travels at the speed of causality. In this case the answer comes down to quantum wave interference as the superposition of the wavefunctions for the photon and medium result in interactions which slow down the propagation. This latter effect in observations where the system slows down the more rapidly it interacts(i.e. is measured/observed) is generally known as the quantum Zeno effect. What this means is like everything in quantum mechanics still hotly debated. physics.stackexchange.com/questions/466/what-is-the-mechanism-behind-the-slowdown-of-light-photons-in-a-transparent-medi

[@damirskrjanec]

Is it possible that the neutrino is late just because it traveled slower? We know they have a mass, so they must travel below speed of light.

[@pl0y]

When was your first dead show man? How many you see?

[@LaunchPadAstronomy]

My first was March 29, 1987 at the Spectrum in Philly. I had just rediscovered the Dead despite having been born and raised on their music. Fortunately, it was right before ToG was released so the scene hadn't totally exploded yet. Unfortunately, I only got to a handful of shows in Philly before I moved to MD and couldn't get tickets to anything b/c they had gotten so big. Tragically, I had a ticket to the 1989 JFK stadium show in Philly, but couldn't find a place to park. Still, I was collecting tapes and I've seen Dead & Co a few times. You?

[@brockborrmann2931]

Nothing gets me going quite like multi messenger astronomy

[@willinwoods]

4:37 Oh, but i _do_ complain, every single second of the day.

[@paulcalhounwaser7971]

Physicists have observed tachyons, so they are no longer “hypothetical.” Most physicists do not know it, but all neutrino speed measurements have yielded average speeds slightly faster than the speed of light. And the neutrinos’ rest mass-squared has been measured from neutrino oscillations, and they are negative. The square-root rest masses are thus imaginary. According to special relativity, positive relativistic mass must always travel slower than the speed of light. Conversely, negative relativistic mass must always travel faster than the speed of light. Thus, neutrinos have negative relativistic mass and negative-imaginary rest mass. Neutrinos are tachyons and cannot rest but must travel faster than the speed of light in a vacuum. Although we would measure neutrinos as going backward in time, they do not actually go there. We measure what occurred in the past. The arrow of time goes uniformly forward in the rest frame. Everything we see and measure is in the past, but nothing goes there. There is no “tachyonic antitelephone.” I have uploaded several papers on these properties to Academia.edu.

[@sanjuansteve]

I think Einstein had it wrong and that time is constant, not the speed of light. I think dark matter density is the limiting factor to the speed of light and that gravity and dark matter density bend/pull on light (and everything else), not 'spacetime'. I think quartz pulses and atomic clocks are induced to operate more slowly when traveling at high velocities in space, slowing our measurements of time, not time itself.

[@yourstruly4817]

What would happen if a White Dwarf merged with a Brown Dwarf? Would it create a new star?

[@LaunchPadAstronomy]

It probably wouldn't create a new star so much as the WD would tidally strip the BD down. Might make for a fun little nova, however :)

[@yourstruly4817]

@@LaunchPadAstronomy Thanks!

[@Hallands.]

Wait! Don’t neutrinos travel at one speed only?

[@LaunchPadAstronomy]

No, they can vary, but because of their small mass even "slow" neutrinos travel relatively close to the speed of light. Cheers!

[@Hallands.]

@@LaunchPadAstronomy Ahem, doesn’t that contradict the wave/particle duality?

[@jensphiliphohmann1876]

@@Hallands. No. Any particle shows a wave-like behaviour, e.g. electrons.

[@Hallands.]

@@jensphiliphohmann1876 But the speed of a wave is given by the medium it’s traveling in, isn’t it? And if so, the neutrino can’t pack a bigger punch by going faster, right? Oh, is it the amplitude, then, which packs the high energy?

[@jensphiliphohmann1876]

@@Hallands. energy ~ frequency momentum ~ wave vector (whos absolute is ~ inverse wavelength)

[@damanybrown5036]

Are neutrinos dark matter???

[@LaunchPadAstronomy]

Great question! Neutrinos are a candidate for some of the dark matter that seems to be out there, but the mass of DM far exceeds the estimated mass of neutrinos. So for now it seems that most of DM must be some kind of new, weakly interacting particle.

[@qake2021]

👏👏👏👏👏👍👍👍👍

[@ridleyroid9060]

What is a neutrino? The video has me a bit confused.

[@LaunchPadAstronomy]

It’s a subatomic particle that lacks an electric charge (literally, “little neutral one”). They’re formed in high-energy particle collisions.

[@erichaynes7502]

Cocoon 3: The Fall Off

[@georgechronis8236]

i wont stay home thank you. can you force my favourite youtubers in one show and be completely unprepared

[@WSCLATER]

Such nonsense. The presenter talks here as if we know about these objects. This is really just science fiction, imagination and speculation dressed up to sound like established fact.

[@kiepikbekon2643]

1 in 200

[@notyou6950]

Nice fairytale. Keep dreaming up stuff.

[@NapaCat]

Are ya a Ben fanboy or just dumb?