Everything You Need To Know About Brown Dwarfs
Вставка
- Опубліковано 1 жов 2024
- Brown dwarfs are pretty odd objects: they're not stars, but not planets either. What makes them distinct from both stars and planets anyway?
More information:
Wikipedia article:
en.wikipedia.o...
'Webb identifies tiniest free-floating brown dwarf'
www.esa.int/Sc...
'Are brown dwarfs stars, planets or neither?'
www.astronomy....
'Brown Dwarfs: The Coolest Stars or the Hottest Planets?'
www.space.com/...
'James Webb Space Telescope spots hint of mysterious aurora over "failed star'"'
www.space.com/...
'What Can We Learn From Brown Dwarf Atmospheres?'
owlcation.com/...
Music used:
Neon.Deflector - Pulsar
• Neon.Deflector - Singu...
Stevia Sphere - Hot Chocolate
• Stevia Sphere - Hot Ch...
/ bluedotdweller
brown dwarfs, and VERY small red dwarfs are some of my favorite objects in the universe! I'm not entirely sure why but i just find them pretty neat
Excellent presentation.....Cheers!!!!!
With an Emily Latella vibe
Thank you for making a video about Brown Dwarfs, they're my favourite space objects!
Wonderful video! Clear and concise. (Subscribed)
I wonder if Y-type brown dwarves could host life. I wouldn't mind to have some extended vacations in a "floater" on a "star" that has the temperature of a nice sunny day all the time... but I worry about radiation and vitamin D. 😅
There are too few elements that can exist in a gas giant's atmosphere for life, so likely not. I was reading a paper which listed 14 elements that had some compound or other that could reasonably be found in a gas giant's upper atmosphere. There were not nearly enough trace elements to make complex proteins. Another problem is convection currents were constantly sucking potential life down to sterilize it. (This second problem would be worse in a Brown Dwarf.)
@@RicksPoker All we need is O2 and H2O, maybe some N2 for balance, and then a farm of flying pigs for sustenance. 🐖
I'll grant you that convection currents can be serious issue for those flying pigs with gas masks I'm planning to farm in the floating farms of our Y-type not-really-brown dwarf but as long as it's a perpetual sunny day without a sun... think on all I will save in heating!
And even in sheep: no wool needed! 😅
PS: On a more (not really) serious note, I'll hire Musk's Interstellar Mining Company, officially known as X probably, to deliver me trace minerals from random asteroids, i'll pay in bacon and sausages.
🥓🥓🥓
Thanks Bluedot. You choose the best topics
It rains iron...Gonna need one hell of an umbrella.
As for life on a brown dwarf's planet, that would be pretty easy for a SF author to imagine. S/he would just rip off what's going on at Jupiter right here. That is: put three planets in the 4:2:1 resonance, and cover one of them in ice.
There: ocean. Under the ice. Europa might actually have too much water for life to get a hold on, but SF authors can suggest less water for the chosen planet.
Life could exist on planets around the most massive brown dwarves. Brown dwarves dont cool that quickly, if a planet is in the inner edge of the habitable zone at formation, it would still be on the outer edge of it by the time complex life could develop.
Scientists need to give naming responsibilty to someone else
As usual, great video, one minor comment is the "cold" brown dwarf around 8:30 shouldn't have the minus on the 131C and 268F. Only noticed because I'd usually use 250 as a rough number to add to C to get K and ended up questioning that :). Anyway, brown dwarves are not one I've seen to much on so was good to learn some new stuff, especially around the blurred lines on classification of huge planet vs brown dwarf.
If a brown dwarf had a moon or a planet orbiting it couldn't it potentially be similar to Jupiter/Saturn and some of their moons which apparently have liquid water under the ice?
Maybe, but until we find more of them, it's hard to say.
Your content is excellent. You should have a million subscribers. I’m sharing this.
This literally everything I wanted to know about Brown dwarfs presented by the most adorable host
Are we allowed to say that her adorable factor is off the charts? I like the science.
She IS cute!
Slijmballen! But you're not wrong!😇
I do think it's a bit weird and a bit dismissive to call her adorable, but I would be lying if I didn't agree. She's both adorable and extremely competent with conveying such technical topics
I suspect that they are going to be full of surprises
The bleeding edge of the fusion process
The possible weird chemical processes
Their huge size (compared to planets) creating crazy storms mixing it all up
Thanks for clearing up the "failed star" myth about Jupiter. And I never knew there were variations of brown dwarves. Excellent video as always Blue. 👍 I look forward to the next one!
Thank you, ma'am. You knock it into the parking lot.
The gas dwarves are weird. If you add mass to brown dwarfs they'll continuously shrink and then become small star the size of small gas giants, but with 80 mass of Jupiter lol.
Or are they, in fact...Dyson Spheres! Kidding. Sorry. I was just playing Stellaris.
Another enjoyable video! These objects are so interesting to me because they are so difficult to observe and to define. It's amazing that our technology has progressed enough to actually be able to spot so many of these given how tiny and dim they are. And yet they are paradoxically violent beyond our comprehension for objects that never ignite sustained hydrogen fusion.
I always wonder what we will end up calling cold, dead brown dwarfs. As you say, black dwarves is taken, even though they probably don't exist yet.
I guess cold Y dwarfs will do for now.
Another excellent video, is a brown dwarfs future limited to being a brown dwarf. Can they merge or be pulled into existing systems or growing protoplanetary discs. I've heard red dwarf are the most numerous. Do brown dwarfs follow this trend.
Love your content, you've a unique delivery and I've noticed I'm not the only one caught in your gravity
I suppose on rare occasion brown dwarfs could merge, but keep in mind stuff in space is very far apart from each other, even in denser areas like galactic centers. Most stars in the Universe are low mass red dwarfs, so it makes sense to think brown dwarfs, as well as planets in all sizes, are very common as well. Though very massive planets are uncommon, they are easier to find because they're so huge. Small planets are probably common around most low mass stars, they're just hard to find.
Similarly, brown dwarfs are small and cold, and it takes a lot of time to search the sky and find more. Especially with high tech space telescopes like JWST, everybody wants a piece of the action to do their research, but there's only so much time anyone gets with a telescope to get the data they need.
I’ve always liked brown dwarfs. They’re strange, unique, and they do their own thing.
Its sad we can't study Brown Dwarfs up close. The nearest Brown Dwarf is 6.5 light-years away. Our closest analogue is Jupiter, while impressive, is nowhere near the mass.
Excellent video! Great Brown Dwarf 101!
Great video. What is your educational background/area of study? It seems like you know everything! :)
Why not call them purple dwarfs?
I never knew. I thought they were just dead rocks that failed. They actually are alive and want another chance to shine.✨
Enjoyed that thx. Learned a lot, did I miss the estimate of how many brown dwarfs we think there are in our galaxy and the universe?
Absolutely fascinating. Excellent.
Underrated channel.
Thanks for this, brown dwarfs are a much under-sung species of space stuff. Loads I didn't know on this. To say thanks I'm currently watching (but ignoring!) a 12:38 🥺advert which I hope gets you a few cents at least. If I could afford Patreon, I would, you're a treasure.
Thank you so much!
Super interesting. Thanks!
I hate the UA-cam algorithm. I literally remember subbing to you because I love your voice and accent.... I haven't been recommended a vid of yours in months 🤣 ridiculous. Do I need to start spam-liking channels I sub to so I actually get recommended their vids in my feed?? I dunno but I'm about to like all your vids just in case!
The algo can be so weird! I get this a lot as well with channels I like, I think it's important to enable channel notifications, but I've heard they don't always work. Eh.
I've found it pretty consistent to see every video when i look at the subscriptions feed.
Yt seems to respond better to engagement than actually being told to notify. 🙄
0:37 interesting question: would "satellite[ 'follower' )" serve as an intermediate between planet & moon as brown dwarves employ deuterium fusion, which is short of stellar fusion (p+p to CNO 4:42 cycle).
6:10 you forgot the Degenerate Matter state of white dwarves, brownies would be plasma at hottest.
As edifying as ever. 😊
You really are a great presenter!
PLANTARY RACISM !🇨🇦
Great info and marvelous subject.Wonderfully explained~THANKS📡🌌
Excellent work you do.
They are the universe's failed attempt at creating a star.
failure is presumptuous word for everything gravitationally linked my friend.
Thank you
One thing I love about Jupiter and its satellites is, even though it isn't a brown dwarf, it still still looks like a model of a solar system within our own.
2:16 i'm pretty sure they're not black they either look like a gas planet at their coldest, like jupiter, but maybe with a soft purple hue, or they are reddish purple or reddish shimmery. Jupiter doesn't create light, but you can see it, of course it's due to the light of the sun and the fact that Jupiter reflects that light, and if the "brown dwarf" in question is in interstellar space, then you can't see it, but if it orbits another star, you can see it. and yes, this comment is a bit petty. but celestial bodies/objects/things are black only if they do not reflect any light / or almost any light. if a red balloon is placed in a dark room without light, it is still technically red, even if the human eye cannot see it, and if the light is brought back, it is still red. (yes, in interstellar space they are "black", but pretty much everything is black there that does not reflect light or that only a little light hits.)+ that's also good to remember for all real stars, if I haven't completely misunderstood, their light is white*. to the human eye, at least in space, the atmosphere complicates the matter. so basically this whole comet is they are only "black" if they are in interstellar space, but if they are orbiting a star they are not "black". of course correct me if I'm wrong. otherwise good video.
Life on such brown dwarf planets might be possible if there is enough internal heat, caused by tides. The most massive and hottest brown dwarfs may have a few billions of years to spend enough light; and if we have a planet like Venus in such a system with a thick atmosphere (greenhouse effect), it could remain warm enough for billions of years (?)... "Tidal locking" might be another problem for planets close to a brown dwarf, but if we see e.g. Venus (again) with an extreme slow (but of course not "tidal locked") rotation and the "high pressure atmosphere": there is almost no temperature diffences between day and night. Another chance for life on such tidal locked planets (close to their star or brown dwarf): if their axis has an ecliptic (like earth), a difference between day and night could be defined just by "years" instead of "days". And one orbit (a "year") may take only a few days in such systems.
I remember back in my childhood when astronomy books told, that even red stars are not likely to provide habitable zones, but today we see such a lot "good places"... even some moons in the outskirts of solar system (and even Pluto!) are likely to have water oceans. :)
(sorry if my English is not perfect)
Thank you.
I totally get the distinction between stars which ignite and those with too little mass to burn hydrogen.
What I am missing is this idea that smaller masses of agglomerating materials form in a fundamentally different way and that even if they could accrue enough mass over time they wouldn't become a brown dwarf. It seems to me that brown dwarf objects ARE failed stars and that gas giants are only prevented from becoming hotter fusion objects because of mass.
Jupiter has violent weather systems and a powerful dynamic magnetosphere, brown dwarf objects have violent weather systems and the presence of aurorae suggest they too have proportionately sized magnetic systems. The same can be said of our sun. The principle difference between the three classifications, responsible for their radically different temperature and pressure is mass. That's it, surely.
1 light year = 9.5 trillion kms. The distances involved are mind bending for a mere blue dot dweller like me.
Thanks great channel.
If "stellar" people or activities are of an extremely high standard, and if I said that this video was "substellar", would you be offended? 😄😄👍🏼
Brown dwarfs come across as just kinda sad and lonely. We should adopt and take care of them to brighten up their lives.
love your chanel
- go to brown dwarf
- it's very dark
- turn on night vision goggles
- get flashbanged
Couldn't we consider Jupiter as a "brown dwarf" or a failed brown dwarf?
Idk why but I have a feeling that you have a witch cauldron off camera
God loves nerdy astronomy chicks almost as much as I do. I would love to have someone tell me bedtime stories like this.
It may be that "Black Dwarfs" are rare at best there is so much heat in forming and they all do some form of fusion.
Love your videos and presentation
Yay more star stuff!
Learned a lot. Thanks.
Great video! You rock
Multiple errors is so disappointing.
You are growing so fast😎👍
No you don’t say 🤪
Excellent presentation. Question, if a brown dwarf had a planet, does it have enough mass/gravity to keep it or could the planet be released at some future time? Thank you.
If its mass doesn't change, any planets will just keep orbiting it, unless the system got disturbed by the passage of another star.
So your position is we are NOT part of a binary or trinary system?
Doesn't look like it.
@@bluedotdweller Have u looked into any stuff by sri yukteswar, yuga cycles, golden ages, 24000 year cycle. ?
I think there is another star out there but still too far away to detect
@@bluedotdweller please watch, sri yukteswar
@@bluedotdweller
m.ua-cam.com/video/cE7pWTWZVU8/v-deo.html
@@bluedotdwellerm.ua-cam.com/video/cE7pWTWZVU8/v-deo.html
My God, another great episode. I truly believe that if someone as intelligent and talented as you came close to another person as intelligent and talented as you LIGO would detect the meeting. Thank you so much sharing your gifts with us.
.... and they're not dwarfs, they're little people.
Midgets, Hobbits, Lepricons ?!
7:00