
Oktay74tn
183821
379
3
Massive Black Hole In An Offset Tidal Disruption Event
Oktay Yürük aka Oktay74tn, science and tech content
https://imgur.com/user/Oktay74tn
This is a Hubble image of AT2024tvd, a tidal disruption event TDE in a galaxy 600 million light years away. The TDE is the small dot at the top left. It is 2600 light years away from the central supermassive black hole with a mass of at least 100 million solar masses.
This animation shows the tidal disruption event. A star comes too close to the black hole with 100,000 to 10 million solar masses and is spaghettified. There is a strong burst of radiation. The two supermassive black holes are not gravitationally bound to each other. The smaller black hole could have been ejected from the center of the galaxy.
According to an alternative theory, the smaller black hole is the remnant of a galaxy merger more than one billion years ago. In this case, the black hole will spiral into the center of the galaxy and there will be a merger of the two black holes. Offset tidal disruption events provide an insight into processes within a galaxy.
Black Hole TDE AT2024tvd
https://science.nasa.gov/asset/hubble/black-hole-tde-at2024tvd/
Wandering Supermassive Black Hole Discovered 600 Million Light-Years Away
https://www.sci.news/astronomy/wandering-supermassive-black-hole-13891.html
A Massive Black Hole 0.8 kpc from the Host Nucleus Revealed by the Offset Tidal Disruption Event AT2024tvd
Yuhan Yao, Ryan Chornock, Charlotte Ward, Erica Hammerstein, et al.
https://arxiv.org/abs/2502.17661
Wikipedia articles
https://en.wikipedia.org/wiki/Tidal_disruption_event
https://en.wikipedia.org/wiki/Supermassive_black_hole
https://en.wikipedia.org/wiki/Binary_black_hole
First Rogue Black Hole OGLE-2011-BLG-0462 Confirmed
https://imgur.com/gallery/first-rogue-black-hole-ogle-2011-blg-0462-confirmed-eros4l1
Gamma-Ray Bursts In The Hercules-Corona Borealis Great Wall
https://imgur.com/gallery/gamma-ray-bursts-hercules-corona-borealis-great-wall-oyXFF5N
GRO J1655-40: Black Hole History Revealed
https://imgur.com/gallery/gro-j1655-40-black-hole-history-revealed-H6alPgL
Black Hole Evolution to White Hole: New Theory
https://imgur.com/gallery/black-hole-evolution-to-white-hole-new-theory-vVie0ya
Supermassive Black Hole in Large Magellanic Cloud
https://imgur.com/gallery/supermassive-black-hole-large-magellanic-cloud-ktCOEPW
TsubakiTragic
Lunch!!!
rbudrick
The text/speech is weird. It's talking about 1 singular black hole. Midway through the whole shebang, its referencin the other one. Huh? Why wasnt that mentioned before?
stfuDonaldTrump
Love the science. Can we stop with the twitchy step zoom videos, though?
Subsound
pandajack
TIL the word spaghettified. https://en.wikipedia.org/wiki/Spaghettification
Deoxyribonucleicacidwashedgenes
I find it funny hearing someone being all serious saying "spaghettified" in a (German?) accent.
Oktay74tn
I had that thought experiment of a person coming too close to a black hole in mind. “Stretched and torn apart” would have been better :) . I was born in Germany. My parents are from Turkey.
4vie
So this happened 600 million years ago?
Oktay74tn
Yes, the first Hubble picture is from a journey back in time.
thatwoodguy
One thing about Galactic formation that has bothered me as an amateur astronomer for decades is globular clusters. Why are there so many why do they all look alike and where do they come from? Are these stripped down cores of galaxies that have been merged into the Milky Way
Oktay74tn
There are about 150 globular clusters in the Milky Way. They usually consist of old, metal-poor stars older than 10 Gyrs. Some contain several generations of stars. They could be stripped cores of dwarf galaxies or the remnants of galaxy formation.
thatwoodguy
I already know all of that as I've been amateur astronomer since age eight and I'm now near the 60. What they haven't done is make a reasonable explanation about where they all came from and why they end up arranged in such a way. Galactic gases end up fueling new star for me so that vanish is pretty quickly, and stars either get ejected or Incorporated
Oktay74tn
In processes that are controlled by gravity, there is usually some material left over, e.g. the asteroid belts or moons or planets. Maybe it is something like that.
Spaceqowboy
Always love your uploads. Thanks.
CarpoolTunnelSyndrome
God's nostrils.
Redshadow09
Dude got to sneeze
ConsummateConundrum
Pro: Hubble finds a massive black hole
Con: It's too far away
criminalsarcasm
I personally prefer this distance.
Redshadow09
thats a con for you?
MapleSyrupMafia
It could solve a lot of problems real quick...
PimpinKen
Actually, if time dilation is a thing, it would take forever
theoriginaljfizz
Eep. That's horrifying.
Burstflare
The time dilation is only perceived outside of the disruption. So those falling in perceive time normally while those outside looking in see things going slowly. You die very quickly but those looking in will see you slowly dissappear.
PimpinKen
Thanks for hitting me with some knowledge!
Redshadow09
When we are talking about "Future" Merger. Is it safe to say it already happened?
rrlyrae
no. assuming an event outside of our light cone implies an absolute or privileged timelike frame of reference, but there really isn't.
razorburn
Trying to figure this out too, I think yes probably? But we won’t be able to watch for a few thousands years?
Oktay74tn
That is an interesting question. According to https://www.aanda.org/articles/aa/abs/2021/08/aa39859-20/aa39859-20.html , the merging timescale for the supermassive black hole binary in another interacting galaxy NGC 6240 is less than 55 million years.
emberfish
Someone once told me it’s not really useful to think about things this way due to relativity. Speed of light IS the speed of causality, so even though it’s “already” happened there, it won’t have happened here until our future. In other words, if we were able to travel towards the event, it would appear to be happening faster and faster as we approached lightspeed.
emberfish
Another fun way to think about it: Imagine a probe halfway between us and the sun, and the sun suddenly turns off. Even though the probe would detect it “before” us, the signal from the probe would reach us at the same time (or just after) we saw the sun go out. Both the probe and earth observed the same event simultaneously as it happened in their reference frame, the only difference is our relative position to the event in spacetime. Or something like that.
JackieTreehornProductions
You’d like a fiction series called Expeditionary Force. The whole space time and space battle strategy when using light speed weapons and FTL travel is a mind bender.
vegivamp
Functionality, yes, but I still don't agree. It already happened regardless of where you are - if you could instantly teleport there it will also already have happened.
And the speed of causality? Quantum entanglement would like a word.
emberfish
Right, but you can’t instantly teleport there, because that would involve traveling FTL.Quantum entanglement does not violate causality.
vegivamp
I'm aware, you can't use entanglement to transfer information. I just used teleportation as a stand-in for any potential tech that circumvents the speed limit, like Alcubierre drive.
UnitConversionBot
2600 light years ≈ 15300000000000000 miles
BoogiesOogie
What is that in kenmore washing machines?
DrNick
UnitConversionBot has been struggling with some of these large numbers, but dammit he's trying!
dalaiyoda
Let's do some science. Hey @UnitConversionBot, can you please convert 1.53x10⁹ miles to light years?
Poopoopeepeevagina
How many kilometers for those of us who are civilized?
RustyRedbeard
2.55 x 10¹⁶ km or 2550000000000000000km (I think that's right, 255 and 16 zeroes)
orp0piru
2'550'000'000'000'000'000 = 2.55E18
25'500'000'000'000'000 = 2.55E16
10'000'000'000'000'000 = 1E16
mineoc
Apostrophe as a thousand separator in the wild!
It’s the only truly unambiguous thousands separator.
orp0piru
got this in the '90s, only device i've seen that uses it

RustyRedbeard
Ah, so not 16 zeroes, 16 places after the decimal point? That's why it includes the .55?
Thank you for the correction.
TheFleets
When you use scientific notation, you keep significant digits in your answer. This link should help https://en.wikipedia.org/wiki/Significant_figures
CarpoolTunnelSyndrome
How many kilometers tho?
RustyRedbeard
That number, multiplied by 0.6... my calculator gave me 2.55E16 ? I guess the E means to the power? I'm not a numbers guy, it's a fuckin long way.
mineoc
25'500'000'000'000'000 km
villlllle
2,55 x 10^16 is what that means.
RustyRedbeard
Thanks