M75 - Sausage Globular Clusters - Deep Sky Videos
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- Опубліковано 29 вер 2024
- Dr Becky Smethurst discusses M75 and globular clusters.
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Sausage Globular Clusters paper: arxiv.org/abs/...
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Video by Brady Haran
![Math for Game Devs [2022, part 1] • Numbers, Vectors & Dot Product](/img/n.gif)
Still my favourite paper title. I'm waiting for the day something knocks it off the top spot. Also, I really fancy a barbecue now...
you are just AWESOME!
First somewhat warm day in the UK: Sod the rain clouds, barbecue and unhealthy amounts of cider. Whaddya mean it's only Thursday? o.0
Would you consider it cheating if said paper was one of yours?
@Dr. Becky
Am I just thick, or did you have a slip of the tongue and get the meaning of star metallicity reversed? Shouldn't older stars have less metallicity, and younger stars be higher in metals?
Is the invitation still open? In all earnest?...
I have questions about B polarization in the universe
There are three distances from which polarization signals come from
Note the B polarization patterns of those galactic dust
Dust of galaxies
The first question is how far are these signals away?
A polarized signal B comes from the cosmic grid
The second question is to what extent does this signal come from the cosmic network?
How far is this signal?
There is a third sign
A polarization signal is B of the oversized universe
A sign of inflation
How far is that third sign?
We ask you to work with the development of sensitive devices to know the three distances that give us a polarization signal
isB
The Morse code at 1:05 is "DEEP SKY VIDEOS", but with the "DEE" and most of the "P" cut off.
That's astonishingly well noticed mate
big banger theory
Soo ... the origin of the sausage globular clusters is ... the sausage galaxy? UPDATE: the origin is Gaia-Enceladus Galaxy which was discovered by an earlier science group with partially the same members: en.wikipedia.org/wiki/Gaia_Sausage
I never sausage a globular cluster!
What not big enough to envelope your sausage??
This video calls for a sausage party.
So much for not wanting to see how the sausage is made.
I would love to see this data incorporated into universal sandbox 2
I don't understand why higher metallicity means the stars are older 4:04 ? Any high mass stars must be young, so let's ignore those. Among the smaller mass stars that have long lives, wouldn't the very oldest have been formed when there was overall less supernova remnants dispersed throughout the clouds of interstellar gas, thus meaning these stars would have lower metallicity?
Cool video and thanks for showing the data. What I did not get is how the Gaia satellite measured the star velocities? Is it an optical sensor which takes the same image location in space and compares it to a prior image? If so what are the tolerance or error bounds?
Very interesting
Wow, the Gaia satelite uses Morse code?
C101
I'm so hungry!
Mmmm, sausages.
That's the wurst astronomical nae ever!
Why should you think the Youngest or Biggest should give You Your 'Correct' Result ? - Math...
I believe yiouve gotten your facts wrong, there are usually only 2 Globular Clusters per sausage :D
We need a scrambled eggs cluster, a toast cluster, and we already have a milky way.
A tea cluster with go well with the milk cluster
WOW, you sure packed a lot of material into one video. 😋 Thank you Dr. Becky for your well researched presentation.
Difficulty in refraining from inappropriate sausage comment increasing exponentially!
So the Milky Way ate all of its meals, except the sausages. Never thought I hear of a picky galaxy.
Higher metallicity corresponds to younger not older stars !...What you're seeing with the velocity DISPERSION in the radial direction is tidal stripping of the younger clusters - the older ones have already been done with...
Morse code: "? SKY VIDEOS" --> probably deep sky videos but cut to the length of the clip ;)
I prefer sausages with a higher iron content.
Anybody who dislikes a Dr. Smethhurst video cannot be trusted in polite society.
Kinda, sorta understand, but I would have never noticed the patterns to the data (dayter as Dr. Becky ways)! 😮😏
Always impeccable explanations from Dr Smethurst and perfect blue nail polish to boot.
I like detective novels and shows. Piecing together bits and pieces of evidence and inferring what really happened. Poirot and Morse are amatures compared to astronomers!!!
Spherical polar coordinates? Who call it this way??? I know spherical coordinates, I know polar coordinates, but I don't know spherical polar coordinates.
1:15 OK, what is that Morse Code saying? I need to come back and listen to it carefully...
OK I see a sausage and a bun, but where's the mustard?
Look behind the sauerkraut....
Gaia is biggest advancement in astronomy I've seen in nearly half a century. The very large baseline work is a second, yet to be fully proven out.
My new breakfast order: 2 eggs, over easy, with a side of M75. No toast.
Can I follow a space curve path to the sausage galaxy and have sausage for dinner when I get there?
I’m going to have to watch this at least two or three more times before I can actually get the hang of everything she’s saying.
do the sausage globular clusters have milky ways? :D
vargo hoat no
There is an octocat in the background...
Kind of messy eh?
Messier!
What a pleasant voice. Great a presentations too.
Did you say "sausagisity" ?
Love it!
Big Sausage Plot
“As I understand it,” said Moist, “the gift of sausages reaches Offler by being fried, yes? And the spirit of the sausages ascends unto Offler by means of the smell? And then you eat the sausages?”
“Ah, no. Not exactly. Not at all,” said the young priest, who knew this one. “It might look like that to the uninitiated, but, as you say, the true sausagidity goes straight to Offler. He, of course, eats the spirit of the sausages. We eat the mere earthy shell, which, believe me, turns to dust and ashes in our mouths.”
“That would explain why the smell of sausages is always better than the actual sausage, then?” said Moist. “I’ve often noticed that.”
The priest was impressed. “Are you a theologian, sir?” he said.
Terry Pratchett, "Going Postal"
I'm a simple man: I see Dr Becky, I like before watching, because I know it's going to be great!
this episode was metal
My favorite of yours so far.
Globular clusters can act as tags that help put understanding Galaxy evolution in the bag
Thank you Brady.
Yo
When I was a kid, the idea of what Gaia could do wasn't even science fiction.
SOSIG
Id love to see vids about the Caldwell objects
Always something to make me hungry.
Beautifully explained.
That is quite the reach.
Awesome!!
*DONALD J. TRUMP* owns zero sausage globular clusters, due to being born with small hands and *VERY PAINFUL* bilateral bone spurs.
Heavy metal sausages? Oh er!
Uhm.... Is there a cluster over 14 billion years old in that graph?
9:09 Spelling error in Becky's last name...
3:45 Higher metallicity is indicative of younger stars, not older ones.
She's talking about the population of the entire cluster.
I’m not smart enough to understand most of this.
Dr. Becky is so pretty. As beautiful as the stars
If globular clusters orbit in ellipitcal (normal) orbits around the center of our galaxy, I would expect to see that horizontal (sausage). Their radial distance from the galactic center will vary. But why plot metallicity vs change in radial velocity? Lastly, that "sausage" in the plot is VERY faint. I would double/triple check the data.
i was expecting a more curved structure in the plot to be honest, but I love the video and dr Becky anyways :)
A great video, except for the Australian interrogative intonation.
First
second
third
Wow, I'm used to these videos being short but 🤯 this one really packs a punch! I'm going to read the paper and watch again. Thank you! This is the first of many that I found a bit hard to understand, and I love a challenge