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M60 - And the 3rd densest galaxy - Deep Sky Videos
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- čas přidán 14. 08. 2024
- Featuring Dr Maggie Lieu at the University of Nottingham
More links and info in full description ↓↓↓
Messier 60 and its interesting neighbour, the Ultra Compact Dwarf Galaxy M60-UCD1
More Messier objects: bit.ly/MessierO...
Maggie's website: maggielieu.com
The paper we referred to: arxiv.org/pdf/...
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
Back us on Patreon: / deepskyvideos
Video by Brady Haran
I love the way the hosts (all of them) talk about their topics and specific fields of research ... so much passion and dedication ... it is great and truely inspiring !!! keep it up you awesome people
New people bring new insights and new information to the channel so Welcome! Would like to see more of your work :)
Stop writing"hosts" this reminds me of Westworld these are real people...
@@princeedmunddukeofedinburg I honestly don't care what it reminds you of 🤣
@@princeedmunddukeofedinburg I'll admit, of all the semantic issues I've heard people having over the years, this is one of the strangest.
Love this channel
Like the new host, she did a great job
I love how excited everyone is on these channels. Their passion is contagious.
It is always great to watch people talk about things they're really passionate about.
"One scenario that I liked the sound of is called *cannibalism*"
Probably the only place you would hear that.
YES! Seeing the notification for this video TRULY made me smile and brightened my day. Thank you.
Those are the 3rd densest eyelashes in the universe. Lovely presentation.
HAAA
Astronomers can get a little funky.
The interaction betwixt M60 and M60-UCD1 is made profoundly instructive to the layman (me) with the artist's timelapse video. Nice job!
*_TRUST !!_*
Thank you for taking the time for making this kind of videos. Keep the good work, great new host part of the new generation of skyvideos
I hope someday I'll be like one of your hosts Brady! I'll keep on grinding on my physics books till then
how's physics going?
A new video and a new face. Nice.
And a very beautiful face, by the way
Smart and cute, nice combo.
Looks like stars can have a hard time at social distancing too.
Welcome to Dr Lieu!
I think that the peripheral galaxies of the Milky Way have also been cannibalised by it?
Dr. Lieu has one of the most distinct accents, particularly her open vowels, most notably 'a'. Is that accent characteristic of a particular region of Britain? Were I forced to take a guess, I'd say Essex, but that mainly shows my ignorance.
Bob Cunningham I just spend 2 month in the UK and I found the accent very fun.
I like accents makes people and regions distinct
"Luminous beings are we, not this crude matter."
Very interesting and very nicely explained!
the really densest galaxy is, of course, the one that has CZcams comments
I like how the guys talk and you think it’s just gonna be drolllndroll drole but it turns out to be very unique and amazingly interesting phenomena that’s worth the time spent absorbing
Love these videos, always interesting
What? How'd I miss this notification man!
New Deep Sky Videos! Perfect for being stuck in all day.
Also those eyelashes are epic!
Thank you. Great video!
The 3rd most exciting thing to post today!
love it!!!!
Great information . ..if I may, is the suggestion that both black holes in both galaxies are their originals?...the black holes were not stolen?
Nice video! Thx
Can you discern where the stars from M60 -UCD1 fall on an HR diagram? Are they mostly old, young, metallic, etc?
With little or no gas there's going to be a lower limit to the age and brightness. Metals would be lower than in a young Milky Way star.
Would a Messier planetarium of numbers show relative position?
Dr Maggie Lieu did a great job. Love her!
Is there an objective definition distinguishing galaxies from large globular clusters? Or is it arbitrary like the definition of "planets"?
it is "science fiction" mostly...
it's all a guesing game. we are still learning.
The way it was explained to me - and this was a few years ago, not to mention I'm no astrophysicist - is that galaxies start as a "flat" structure, even small irregulars, and will have multiple populations of stars you can see even after it's been stripped to just the core, so you look for signs of that, where gcs are born spherical and, except for blue stragglers, are all of a single population.
In this case ofc, a massively oversized smbh makes it simple to tell.
I expect marginal cases are debated to great and exhaustive - and exhausting - lengths! 🤣
Pretty sure that globular clusters (an amorphous collection of stars) would technically have to be very close (astronomically speaking) to us - part of our galaxy (the Milky way). Meanwhile, a galaxy in our sky (M60, and M60-UDC1, etc.) would of course be another entity entirely, and truly quite distant. The extra bit Maggie did mention (that gives us another clue, although it isn't universal) is the presence of supermassive black hole at the centre - this leads us to be confident that M60-UDC1 therefore isn't a globular cluster.
I love to pick her brain with all my questions. Dr Lieu's (sp?) composure is informational and friendly. Nice to see in such complex topic 👍
Had no idea such UCDs existed. Crazy.
Sound seems to be peaking, maybe that's just me.
not just you
clipping
too much enthusiasm for ordinary microphones
Love this 👍
Likeable host.
Great presentation! Is this the same Maggie Lieu that was a Mars One candidate? She looks very familiar.
didn't mars one turn out to be a scam?
oh! Wow.
Could we be looking end-on at a quasar?
Never thought I would hear tiny and galaxy in the same sentence :) Nice vid!
I don't know, relative sizes of objects of the same categories tend to make us use works like "tiny" and "gigantic" about anything. Like, some virus are gigantic, some stars are tiny, even if stars are massively bigger than virus.
@@Ezullof Sure, it is all relative to the object in focus! I just thought it was funny heh
I see you've never played Tiny Epic Galaxies then :)
What you doing on here Dr Lieu!
Oh yea Notts Uni!
Two objects can look like they're very close but could be very distant because one is in the far background. As I understand, distance is still measured using Cephid variables. Does M60-UCD1 have Cephid variables so that its distance from us can be measured and compared to M60?
Yes, I saw that on Father Ted.
@@colinp2238 wait... so once again... small or far away?
The rumors were true!
The Soylent Galaxy!
M60 is people!
when might we expect M61
Sneaky adding the ucd1
do eta carina !
Why would a central black hole illuminate the whole galaxy in x-rays?
The accretion disk of a black hole causes the material in it to heat up to billions of degree C right before the event horizon. The electrons in this disk generate x-ray emissions at this temperature which we can observe all the way from a different galaxy.
Yes but the accretion disk of an enormously massive black hole is on the order of a few AU in diameter and this small galaxy diameter is probably thousands of light years in diameter. It seems the accretion disk would not make the whole galaxy glow but would be a point source. I guess the same thing happens with quasars.
im in love... again
Audio quality is pretty bad...
Why "stolen"? Maybe they changed side on their own will 🤣? Edit: It's all just physics and time, A LOT of time, there's nothing human about - but we can't help it, can we? Thanks for the video, the explanations and all the pictures and animations!
Welcome Dr Lieu!
and did I miss an intro video somewhere?
She's got me in a spin
Holy s@#t 😍
Do you ever catch an eye lash when going around corners? It's freakishly distracting.
Not sure if your self presented IQ here is high enough to be subbed to this channel and gain anything from it. Maybe you could check out some channels more appropriate to your mental abilities?
Sass and belittling aside, do you not see how depressingly sad it is that you needed to post that comment? Think about your life choices that brought you to a place where this kind of remark is ok or appropriate here and then maybe make some changes. Or don't... Not everyone is able to handle being a decent and mature adult.
Beauty is in the eye of the beholder, but I found them distracting too. I also find Professor Poliakoff's wild hair distracting on Periodic Videos. Love the science thought!
@@losveratos CAUTION: others may be judging you by your comments...
@@rillloudmother When I grow a neckbeard I might just care about that. For now, I'm fine with it.
How do you make it through a walk to your car being so easily distracted my guy? I imagine you just sort of flit about like a dog and forget the car entirely
great guesing game.
Where is the 8 suns planet ? 🤯
That is in M8
you mean stars? sun is the name of our star right?
Isn't there already a video on multiple sun systems, and 8 would not be stable long term. That episode of Star Trek was terrible.
GodwynDi I concur, it’s beyond terrible. As a Trekkie I don’t even regard it as Trek In any way. I was intrigued by the 8 suns idea, but my gut feeling said it was impossible going by how bad the writing is, it just sounded cool to them. I mean if you could move suns, these synths won’t have been a problem. 🤯
According to existing data M60 does not interact with spiral NGC but they in a gravitational influence.
gravitational influence == interaction
Nice host...
I don't see M60 as a thief or a bully, I see it as a predator.
Maaan, that audio just ruins it
If you close your eyes, you could be listening to Dr Becky. Uncanny!
Nah, Dr Becky doesn't use vocal fry as if she's running out of batteries at the end of every sentence.
Best regards the happy hour at the bar please like.
Cutest astrophysicist with cutest accent
My wife says 'wow, eyelash jealousy!'. Brady my fellow aussie bro, gday from Tassie dude.
I was so distracted with the strong Brit accent
New Becky?
The vocal fry is super distracting.
Sounds like distortion, likely from a peaking mic.
"Vocal fry" is a low-frequency register sometimes used by singers, or-in regular speech-potentially a symptom of pathology of the larynx. It's also occasionally used to refer to what linguists call "creaky voice", which is a phonemic feature of some languages (e.g. Danish).
@Dan iel
No
dense makeup
She's beautiful
Click Bait Brady. ;)
3rd Densest Galaxy...
makeup