Intermediate Mass Black Holes - has the missing link been found?
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- čas přidán 18. 04. 2020
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Intermediate Mass Black Holes are the missing link between stellar mass black holes found in binary star systems and supermassive black holes in the centers of galaxies and quasars. But now a team of astronomers believe they have finally found the holy grail of black holes, an intermediate mass black hole destroying a star in a tidal disruption event.
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🧭 References:
Lin et al 2018: A luminous X-ray outburst from an intermediate-mass black hole in an off-centre star cluster arxiv.org/abs/1806.05692v1
Lin et al 2020: Multiwavelength Follow-up of the Hyperluminous Intermediate-mass Black Hole Candidate 3XMM J215022.4-055108 arxiv.org/abs/2002.04618v1
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🔴 By the way, we've seen black holes wobble by dragging spacetime around it! czcams.com/video/1OYGvVURxUA/video.html
Thanks for continuing to make astronomy interesting by keeping the information simple to understand...
It's my pleasure. And thanks for watching - it's a lot easier to make the videos knowing folks enjoy watching them!
Hey again Christian! Your videos are getting better and better, so happy my son and I have a friendly neighborhood astronomer! Cheers!
It's my pleasure man. I'm glad you're enjoying the show! :)
it’s currently 3.30am in england and i just wanted to say thank you for the work u put into these videos, they really help me calm down when i’ve had a bad panic attack!!! 😇
I’m sorry you’re having a hard time, but I’m glad I can help maintain the cosmic perspective. Hope you’re feeling better 🤗
Launch Pad Astronomy thank you i’m feeling much better now 🌟🌟
Love all your vedio. I learn a lot form all your vedio. I now love astronomy. Thank you launch pad academy.
I'm so glad you like them, and that you're enjoying the universe!
Video* from*
How do you not see they're wrong?
Please be kind.
Another great video Christian. Thanks again.
It's my pleasure. Thanks so much!
After everything pass 05:34, most would question the host of who or what he is, on the very detail on how he got such a knowledge.
Yes! A video about black holes without the phrase "even light can't escape".
I'll take that as a win!
Lol thanks!
Good stuff. This is definitely an exciting candidate. Hopefully we can build up a large population so we can do some statistics and build up and test some models.
Yep, that would be great if they can. The big problem with IMBH’s is that there hasn’t been a widely accepted way to detect them. If this result holds it may be a technique they can repeat.
@@LaunchPadAstronomy yeah. Large and detailed all sky surveys will probably be the way fwd once we have determined a reliable methodology or maybe we just go looking and then use different techniques to evaluate the candidates identified by the surveys? Reasonable approach?
In fact, you don't have to have dedicated surveys, but any survey that can detect X-ray events like the ones mined for this study are suitable.
I have confidence in NASA and the research they are doing. I'm old enough to own a book that I received for Christmas as a child that stated "Cygnus X-1 may be our best candidate for a black hole." Now, we know it is and J2150 is the best candidate for an intermediate mass black hole. I can wait.
Wow this was brilliant . I feel less stupid than I did 30 min ago . So much info and perfectly delivered for even an idiot like me to understand . Thank you Christian I really enjoyed watching this . Iv been reading a book from a Former NASA scientist George Leonard and I’m very curious . Thank you and keep up the brilliant work is great to have you back
Thanks mate!
Thank you once again for a fantastic video. My news feed has shown me a few stories of this nature recently and I've just swiped past without a second thought. You always manage to articulate and visualise a subject so well it takes very little understanding of the subject to follow
Thank you.
Thank you so much, it so wonderful of you to say! It's a bit of an esoteric topic but one I've been keenly interested in for some time.
Absolutely love your videos! Keep doing what you do so well! 🏆
Thank you! Will do!
You are amazing! Thank you for another great , informative and interesting video. You do such a good job!
Thank you so much, it's so kind of you to say, I truly appreciate it!
Love your videos. Superb explanation for our normal mind.
Another great video, Christian!
Thank Steve!
Love your explanation❤❤❤❤❤
Love you videos. thanks for the share!
Thank you!
Awesome videos Christian
The details were great .
I know it takes a lot of research .
Thanks Joe. It does but it's a good way to learn more about the subject. Glad you enjoyed it!
Launch Pad Astronomy I loved it !
This is such an awesome channel about space.
Thanks Scully!
Amazing :)
I love the details and the careful wording, they allow you to show a bit more of how the real scientific method works, talking about a candidate and why it may also not be it
Thanks, and I'm glad you appreciate the approach I took. Trying to give folks an idea of the realities of science, as it's too easy to fall into the trap of just putting it out there without all of the proper caveats (something I'm guilty of doing in my videos).
This was really interesting. Your videos are so information rich.
Thanks, I appreciate it!
another very clear, very helpful, and very interesting video, Christian! please follow up on this story as more 'matter' 'accretes' onto it ;-)
Much appreciated Victor :)
The TDE light curve looks like the Mandelbrot set equation..is there a connection?
'Never radiate so much as a single photon back' - except for Hawking radiation, of course.
Right but those aren't photons :)
@@LaunchPadAstronomy I'm far from an expert, but from what I know, electromagnetic radiation is actually photons. I just assumed Hawking radiation is of this type. Maybe you should do an episode :)
@@LaunchPadAstronomy Hawking radiation is mostly photons :) It can be other things if the hole is very small.
.
BH will radiate particles with a wavelength the order of the event horizon radius.
great video :)
Thanks!
@@LaunchPadAstronomy Your content and presentation style is really solid, to the point, and it feels very honest :) Thanks again for making these videos :) Also gotta add that I love stellarium, I use it quite regularly when taking pictures of the stars, only on my PC. But yeah, really solid computer program!
I really appreciate that! And yes, I've been a Stellarium fan for several years now so when they approached me about the app I was super glad to know it existed!
Not sure if it's just me but you're looking healthier than usual.
Well, I'm certainly looking fatter than usual but flattery will get you everywhere :)
One of the saddest things about going through older Science videos here, particularly in the 2015 range. The James Webb telescope, scheduled to launch in 2018..... (cry)
😫
Hi Christian,Good To See Your Doing Well,Was Out In The Cold With My Scope Most Of The Night,Cant Be Alone When You Have The Stars✨🔭✨❤️
Very true indeed. I'm glad you're still looking up!
Launch Pad Astronomy ,Absolutly❤️,Even When They Lay Me To Rest...Ill Be Looking Up🔭✨🔭Happy Days,and Clear Skies..and Looks As If 1 Comet Out,1 Comet In,lol..Still a Dozen Out There To See🔭🔭🔭,and Does Stellerium Work With The Celestron 8Se..I May Take a Look At That Now That Spring Is Suppose To Be Here..26 Deg Last Night..And a Breeze,❤️😂
Give it a shot!
Launch Pad Astronomy Taking a Look At It Now❤️Thank You,I Was Unaware You Didnt Need An Internet Connection,and Would Still Run a Computerized Scope
Launch Pad Astronomy ..Holy Crap❤️❤️❤️Found a 6 Min Video Connecting The 8Se❤️❤️Just Put My Solar Viewing On a Whole New Level❤️❤️❤️❤️Thank You So Much
Also worth noting that a lot of Intermediate Mass Black Hole candidates relative to the number known appear to be outside the galaxy's core which simulations show is not an uncommon outcome in simulated dwarf galaxy mergers where IMBH's are allowed to form via direct collapse instead a lot of them end up wandering in the galactic halo likely to never encounter a star for billions of years. IMBH's immediate environments appear to be too sparsely populated for their small cross sectional area to lead to appreciable interactions. If direct collapse black holes exist it is likely that galaxies of the mass range of 10^11 Msun like the Triangulum galaxy and LMC likely have at least 1 IMBH while a large galaxy like the Milky Way should have a few dozen probably wandering the galactic halo but the odds of seeing any of those is low since if they interact with matter they will lose angular momentum and fall towards the galactic core. A consequence of this is that IMBH's in the local universe are disproportionately to be isolated outside the galactic core as otherwise they would be a part of the SMBH of the galaxy. Of course models are just that models but recent observations have been adding to the weight of IMBH's within the galactic halos or disks of galaxies.
Well, now we’ve certainly detected one at around 150 solar masses.
If it isn't a IMBh we found something even weirder.
The more we learn the more microscopic I feel.
Probably also worth checking our Space Engine, Chris. Probably not quite as complete (yet, it's still in development), but it's quite good.
I'd like to, but I think its Windows only so not sure if I want to do the whole bootcamp thing.
It is, yeah. Definitely worth the trouble if it's something you're interested in, though, just for some of the objects and the like it generates. It's really incredible how much they've done with procedural generation and with what we know is out there, on top of where they want to go with it.
if we assume space time is a fabric a gravity is result of curve(dipression) in it then can it there be a bulge (convex).if there is i would like an example if one can tell
Thought the same thing...turns out no can be bulge, only depression or flat.
At 3:30 he talks about the sizes of the black holes... Specifically would that mean the size of the event horizon vs the size of the black hole itself? I was always taught black holes occupied essentially a 0 point in spacetime occupied by the full mass of the black hole. The 'size' corresponds to the diameter of gravitational field where the escape velocity exceeds the speed of light.
Or at least is that what the math says? Obviously we can't prove observantionally what happens beyond the event horizon. Light cones and whatnot.
That is correct. The singularity can be thought of as "zero volume" with the mathematical "surface" defined by the Schwarzschild radius, aka "event horizon".
Imagine if we showed a future neighbor civilization there star systems history to answer there own questions about life. Wouldn’t that be great.
You need more model animation
A naive question that has bothered me for a long time: wen you astronomers depict huge hidrogen and helium clouds , shuodn't be "transparent" those gases are invisible here on earth... Not in the space? Why? And the "gas clouds" wat are they made of to be so dark? Or it is alltogethe an artist license?
Thanks for your teaching, videos and answer... and excuse my English
Recently glanced at Polaris wikipedia page, and there I saw distance measurements vary from 330 ly to 520 ly.
Given such a great difference, and the fact this is the kind of star we use to estimate distances, I take any distance or mass "measurements" as an educated guess.
Really scientists should be more humble throwing numbers like 50000 solar masses that are 800 million ly away when they can't get accurate distance that is 10000 closer than that.
Actually you'll find that researchers take great care to publish the uncertainties in their measurements. In fact, you'll see the error bars in the graphs I plotted in the video which came straight from Lin et al 2018 and 2020. But your point is taken. When I'm discussing the results, I often just cite the middle number to keep the narrative flowing. However, check out the papers from Lin et al, which are both linked in the description!
@@LaunchPadAstronomy I wasn't blaming you in any way, I'm just expressing my thought about how science is done today, or at least the way it is brought to the masses.
Lol ... the Grateful Dead paraphernalia though
My mom raised me right.
Why don't they name these luminous X-Ray outburst as Fred or Barney instead of those long number/letter combinations?
It’s the objects’ coordinates on the sky. Simple, efficient, and not likely to violate the incomprehensibly tortuous Galactic copyright laws.
The James Web Telescope is the telescope of the future, and may well alwas be!
Maybe the solar system created the black hole as a cleanup thing.
Just because we haven’t discovered something yet, doesn’t mean we won’t. How long did man walk this planet before we discovered earth’s magnetic field…Question everything.
Where is the MASS GOING?
Another great dose of astronomy. And nicely delivered -- I always learn something new! Also, props for saying those black hole names without even stumbling. 😂 Hopefully it doesn't take too many takes to say J3729E-1727PSJ+829$&♡.
Thanks! I do have a teleprompter which helps immensely. Still surprised I said them in one take each!
👎 Seems like half the video was a commercial. 👎.
The reason it exists that long ago is because the universe is infinite and there was never a "big bang" the universe has been and will be around an infinite amount of time.
God or gods or big bangs have nothing to do with where it all came from. Your math is wrong because your own math proves your wrong everytime we find things that do not fit your theories
Sus