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M80 - X-rays from Messier 80 - Deep Sky Videos
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- čas přidán 28. 02. 2018
- Featuring Dr Becky Smethurst.
More links and info in full description ↓↓↓
Messier 80 is a globular cluster.
Patreon: / deepskyvideos
More Messier Objects: bit.ly/MessierO...
Dr Smethurst is the Sixty Symbols Ogden Fellow at the University of Nottingham.
More Becky videos: bit.ly/Becky_Pl...
A Chandra X-ray Study of the Globular Cluster M80: arxiv.org/abs/...
Deep Sky Videos website: www.deepskyvide...
Twitter: / deepskyvideos
Facebook: / deepskyvideos
More about the astronomers in our videos: www.deepskyvide...
Supported by the University of Nottingham
Video by Brady Haran
I could listen to Dr Becky all day. She's brilliant.
iSquared, Hi square both sides. That is a brilliant profile eponym. Thank you.
insane what astronomers can find out about space from some pixel and lines
I am enjoying this series.
Thank you so much for taking the time and effort to help us understand. :)
Love these explanations. Thanks Dr. Becky :)
I love these videos! Glad to see they seem to be ramping back up. Next, do all the NGC objects!
6:22 RIP headphone users
Yup, that was painful. Hang on a sec while I scrape my brains off the chair and floor ..
ehh...
I thought my phone speakers broke from the rain I just walked in. Lol
How high does your sound have to be for that to be painful?
DAT BASS
Truly amazing!
Thank you for the efforts in explaining all these interesting things.
More Dr. Becky
Less wub wub
lol
0:51 it is dense, every frame has so much going on!
Cheers! Happy to see the VIRGO interferometer also included
Hello from one of Chandra's controllers!
The sound got all crazy when you show the simulation of binary black holes. It's awesome!
Yay DR Becky!!!!!
I love Astronomy -
Thank you for this post
That hum from the animation though, causing sound distortion and vibration from my subwoofer.
Always nice to know that there is something more dense than me out there. Boosts the self-esteem!
6:22 I thought my phone had died!
One of the most interesting episodes. Also put a spin on the ligo detections that I had no idea about that most news never covered but is one of the most interesting parts.
Thanks for the great videos just found your channel. Yesterday.:)
6:49
SLAANESH IS PLEASED
...Dr Becky?....Thank you, hon...I learn something relevant every time I watch one of your videos!
Those heavy wave sound effects were dope ngl
3:30
Oh, look, there's a squirrel outside the window behind her there.
How cute! =)
It's not 'Kinda boring' - It's Awesome!
I'm astounded by the fact that we statistically analyse the data we get from tiny teensy "blips" and "bloops" we hear in the LIGO detector and say that the black holes that produced those Gravitational waves were from black holes of such and such stellar mass. However, I do realize that the LIGO is a result of a 100 years of research is Astrophysics since the time of Einsten.
KarthikfromReality{C1-35} And relativity too
I'm excited just listening, love becky
another great video :D
Great to add to my collection of things 'we don't know...yet' Definition of 'know' used bt astronomers would be nice.
@5:12 on. Naughty neutron star
Great vid
Nice video. However, M80 is 30,000 light years away, not 300,000. (44 seconds in).
how do you know?? were you there?????????
Exactly! I knew someone else would catch the mistake. 300kly is too far for it to be in Milky Way anyway.
Ahoy M80
jjjhhhmmmxxx26
*clap*
*clap*
*clap*
This deserves way more likes :-)
I’m a simple man, I see Becky and I click like
My favourite Becky
"Piddly*
But...but steel is heavier than feathers?
Any way, thanks, that was fascinating. I feel like I got a glimpse of something I never ever espected to even start to understand. Made my sunday.
Another great video
5:13 hehe
So much awesome geeking. Love it.
reminds me everytime that I want to do research in astronomy too.
MrVipitis Astrology pays better.
Some Things In Life Doesn't give you the same satisfaction. Not everyone is interested in money, you know
Cant wait for the moment when the whole Messier list is covered...
How do we know what the outer bounds are for a globular cluster? Lots of observations to see the motion of the stars in the field of view and their movements relative to the cluster?
Astronomy fans coming from far and wide to learn from the adorable Dr Becky.
Hi Deep Sky Videos. I appreciate you do videos mainly on Messier objects and other things but can you do one on Betelgeuse. Other videos are like bad dramas and distances vary. Three videos did not agree on distances and they all have that 'we are all gonna die' angle when it goes supernova. I appreciate the science so your videos are brilliant in that regard. In summary, have you got a video on Betelgeuse or can you do one? Many thanks.
so what that in a video from years ago somebody else already told about blue straglers, i think it is one of the most fun things to think about in cluster astronomy so please in some next video please tell it again for all the new viewers
If you really want to appreciate a globular cluster try the seeing through a LARGE refractor telescope. I got the chance to see one through the 36" at Lick observatory. Blew my socks off!
I'd guess that the denser the cluster the more heat is generated and in turn more movement. Could the heat factor be what drives the universe outward?
Wow this video must have been filmed very long ago, the gravitational waves detection was announced back in early 2016 if I recall correctly.
Would binarys with bigger black holes decay faster than the ones with smaller black holes? if so why and by what rate/relation?
What's up with the audio distortion during the graphics?
Black hole disagreeing with Dr. Becky
It's an audio representation of the gravitational waves.
All that colorful ink....
great vid, thx
do gravity waves attenuate as they travel?
"This nebula is gorgeous."
No. You're gorgeous.
If I have a question to be answered by your esteemed professors, can I post it here? If not can you please give me the link. Regards
Why aren't globular clusters flat like galaxies?
Gravity. That is the same reason that Globular Clusters are spherical. Gravity is pulling the stars in from all directions. That is the same reason that planets are spherical. Most galaxies are not flat. They are mostly like elliptical balloons. Gravity makes them that way.
Most galaxies aren't flat? The plot thickens. I thought that galaxies were shaped like fried eggs held together by dark matter.
Earl of Doncaster , galaxies come in a range of shapes from near-spherical to flat, including the pretty spirals.
Wikipedia "Hubble sequence" for a diagram :)
You mean, "like spiral galaxies are?". Well there is 2 factors at work in space.
1. Gravity
2. Conservation of Angular momentum
In the case of a planet or star forming from an in-falling cloud of gas, the gravity works to pull all particles toward the center and the angular momentum works to hold them apart. This results in sphere shaped objects like planets and stars.
In the case of most galaxies their star's motion is bound to some central mass (super BH) and therefore falls into an orbit around the center. Here is where (2) comes in. Gravity tries to pull all stars into the center but CAM(2) holds the stars at their orbital radius (or mostly) and the end result is that the stars are pulled toward a center line but hold their orbital distance from that center, aka a pancake disc object is born.
What if we aren't detecting the X-rays from the larger ones because they can't escape the gravitational field so easily so that when they escape it they aren't X-rays anymore. That would only work if they are emitted very close to the event horizon. That would make sense since you need more energy to emit powerful enough photons but to get more energy you need the matter to get closer to the event horizon so it will lose it's potential energy. Then you need to gain that potential energy again so you lose the kinetic energy.
Would not like to live next to 19 high energy x-ray sources -
can our sun become x-ray binary?
That printed chart is such a waste of black ink...
Yeah, with such a shortage of ink in the world, it's unconscionable to waste it on scientific data.
In university or public investigation centers, the consumables are for free
Brady is every where.
Its' state destroys it?
Definitely Piddly!
I don't get globular clusters and especially open clusters. I thought stars formed in a region and then separated away from each other over time. We're not near any of our sister stars. Globular clusters being gravitational bound to each other I can maybe see but shouldn't they shrink and have stars peel off?, but open clusters traveling through the galaxy over billions of years. And why aren't all stellar nurseries bound? So many questions haha
Open clusters and globular clusters are quite different. The former are typically young, the latter old. The stellar nurseries that produce open clusters form from giant molecular clouds with "cold cores" shielded from ionising radiation. This allows the cloud to get cold and dense enough to exceed the Jeans mass at which it starts to collapse under self-gravity. As the contraction proceeds, smaller portions of the cloud can individually exceed the Jeans mass, and fragmentation occurs. The smallest of those units will produce stars, typically binaries and trinaries more often than lone stars. Once the stars light up they start to ionise the surrounding gas and blow it away. The whole cluster was only tenuously bound to begin with so now it begins to drift apart.
We have much less idea how globular clusters form. One idea is that they form from much denser initial clouds so do not get blown away once star formation begins. But we also see multiple populations within globular clusters of different ages and metallicities, at odds with the idea that all the stars in a cluster formed in a single epoch. Globular clusters do shrink and lose stars. Angular momentum can be swapped between inner and outer regions of the cluster, and it's quite likely that many of the original members of globular clusters have "boiled off" and been lost.
Cool video but the audio when they're orbiting each other was real bad.
more like their speakers were so bad they could not detect the bad sound , they actually need to build new speakers or could it be - the had shitty speakers so it woundn't interfer with Ligo...
0:52 I thought being dense meant there's not much going on!?
can gravitational waves travel faster than speed of light?
They travel at 'c', just like light in a vacuum, as that's actually the speed of causality. As with light I suspect the speed can be a little lower depending on what they're travelling through (presumably gravitational waves interact with matter in this way).
M80 Firecracker
Question is why there is so much gap mean distance between objects mean all whatever are find in space collectively and individually?
Hole is not a big issue as it is find in everything micro or mass in size. That is called pin in simple language. Have you seen gramophone record centre hole to put it on huk pin to put treck mean play record on that pin.
Nice looks, nice voice and nice info : )
Wow, whoever did the audio for this completely blew the levels during the bass pulse sounds. Great video though!
THAT BLACK HOLE MERGING SOUND IS WAY TOO INTENSE BRADY
LOL 6:58
Matey
Why cannot a white dwarf be part of an x-ray binary.
The sound effect makes it really hard to hear what Dr Smethurst is saying. Please don't do that again.
I rather doubt that it was an intentional effect. Fundamental frequency is at 50Hz, making it most likely to be a really bad case of mains hum. Further 'fuzz' is due to digital clipping brought on by the added amplitude of the hum.
The audio is distorted by the gravitational waves
Dr Becky...my heart is a gamma ray burst...of love.
do they have intelligence are they awear :) do they change their path to avoid these traps or are they just coincidental are there any patterns emerging on the trajectory of the different objects :)
Dr Becky I have a question. How do you feel about long distance relationships? Asking for a friend.
how can you detect x rays from black holes if nothing can escape them?
It is called Hawking radiation, look it up, quite rad if I do say so myself
Also there could be a lot of high energy events going on near The Event Horizon
Hawking radiation is a theoretical thing, which is not proven to exist. The x-ray jets are caused by the accretion of matter AROUND the black hole.
Here for the Becky
I'm dreaming
U wot now m80
New scientist crush 😍
Are not Black Holes, collapsed Stars just the Beginning of a New Galaxy?
Do you pay for these NASA/Goddard simulations? Or can you use them for free?
Is there an award for sexiest astronomer alive on planet Earth?! It belongs to Dr. Smethurst...!
There are some nice looking astronomers :)
MISTER BRADYHUMAN,
Please don't do that to my ears again.
Thanks.
My Ring is Yours
There are no Neutron stars or blackholes. Gases that are super heated have never been shown to give off x-rays. The only way we can get x-rays in this manner is to accelerate charged particles electrically in a spiral fashion. The fact that we get x-rays here proves we have charged particles being accelerated by electricity around a spiral of some sort. These are electrical vortexes of some sort.
You're half right. Gravity can accelerate charged particles too. So in a viscous accretion disc the material is heated by friction and ionised, then accelerated in a pseudo-Keplerian orbit, producing synchrotron radiation. The accretion disc model accounts for a number of features better than your "electrical vortex". First is flares and periods of quiescence resulting from density variations in the accretion flow. Second is a power law spectrum across a wide band of frequencies from radio to X-ray.
Watch this in 0.75 speed. Thank me later.
Haha! "So, I found this paaaperrr..."
I watch most vids at 1.5 so no.
0.25 is even more funny
"Drunk Astronomers talk Astronomy"
At .5x they sound blackout drunk.
It used to be Carolyn Porco, then it was Andrea Ghez, but now my astronomer crush is Becky Smethurst.
Grammar pedant time: "various" and "different" mean the same thing. No need to use both.
Various may contain duplicates.
And, she's intelligent! :-)
John Johansen, what a shitty comment.
tabaks
Why?
Because it implies that it's a video because she's pretty and the intelligence is a bonus, which is just pathetic. The video only exists because someone knows enough to discuss the topic in detail. They could look like a snail and it wouldn't matter. So you've chosen exactly the most adolescent thing to assume and then seem to not understand that it's idiotic and insulting. That's why.
Biomirth
That interpretation is entirely on your own account!
John Johansen, OK well, Biomirth's expressed his interpretation, it's only fair that you should have your say. So what was your thinking behind the original comment? Please elaborate.
You are so freakin cute!
Tomato
0:30 you can butcher that whenever you want.
Did they know they were going to make a video? Did an adult review this before it was released? Does the word "discombobulated" mean anything to them? Best of luck, but!!!!!!!!
Third!
Please stop the vocal fry.