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Смотреть NASA | X-ray 'Echoes' Probe Habitat of Monster Black Hole онлайн

# 226140 00:01:11 Выключить свет 5 июня 2013 823 просмотра Пожаловаться Сообщить
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Категория ролика: Зимняя ловля

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Теги: Наука и техника, x-ray, probe, nasa, echoes

Ловля рыбы излюбленное хобби многих тысяч людей во всём мире. Astronomers using data from the European Space Agency's XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151, a galaxy that contains a supermassive black hole. The discovery promises a new way to unravel what's happening in the neighborhood of these powerful objects. Most big galaxies host a big central black hole containing millions of times the sun's mass. When matter streams toward one of these supermassive black holes, the galaxy's center lights up, emitting billions of times more energy than the sun. For years, astronomers have been monitoring such "active galactic nuclei" (AGN) to better understand what happens on the brink of a monster black hole.Matter falling toward a black hole collects into a rotating disk, where it becomes compressed and heated before eventually spilling over the black hole's event horizon, the point beyond which nothing can escape and astronomers cannot observe. A mysterious and intense X-ray source near the black hole shines onto the surface layers of the accretion disk, causing iron atoms to radiate characteristic emission -- what astronomers call the iron K line -- at about 6,000 to 7,000 electron volts. The inner part of the disk is orbiting the black hole so fast that the effects of Einstein's relativity come into play -- most notably, how time slows down close to the black hole. These relativistic effects broaden and distort the X-ray signal in a unique way. When the X-ray source near NGC 4151's black hole flares up, the accretion disk reflects the emission about half an hour later. Moving at the speed of light, the X-rays associated with the echo must have traveled an additional 400 million miles -- equivalent to about four times Earth's average distance from the sun -- than those that came to us directly from the flare.Since 2000, XMM-Newton has observed NGC 4151 -- among the brightest AGN in X-rays -- with an accumulated exposure of about four days. By analyzing all of this data, a team led by Abderahmen Zoghbi at the University of Maryland at College Park uncovered numerous X-ray echoes, demonstrating for the first time that what was expected from theory really occurred in nature. Amazingly, the extreme environment at the heart of NGC 4151 is built on a scale comparable to our own solar system. If we replaced the sun with the black hole, the event horizon would extend less than halfway to Earth if the black hole spins rapidly; slower spin would result in a larger horizon. The X-ray source would hover above the black hole and its accretion disk at a distance similar to that between the sun and the middle of the asteroid belt.This video is public domain and can be downloaded at: Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: Or find NASA Goddard Space Flight Center on Facebook: Or find us on Twitter: Самая лучшая рыбалка может быть только тут и только в это время.
alexande # 5 июня 2013 в 20:01 0
What if black holes were like the center of a hurricane, surrounded by chaotic events but in the center or eye is just tranquillity, the black part being a reflection of space.
t147413 # 5 июня 2013 в 23:08 0
NASA isn't unfailable, most of what they say regarding the earth, sun, black holes,.... is speculation
lynne # 6 июня 2013 в 09:35 0
Liked it ong aaaaAaaaaaaaaaaarrrrggggghhhh
mrgoshow # 7 июня 2013 в 14:59 0
Prestigious
antelmog # 8 июня 2013 в 11:54 0
Gfghe
docatomi # 9 июня 2013 в 14:59 0
...the energy discharge form the accretion bubble field collapse (formed outward of the accretion jet, perpendicular to accretion disk) must be massive when the feast is big;~ when that black hole is galactic central & massive, such as Sagittarius A=the field collapse discharge would be conducted outward into the supporting accretion disk, which in such a case is the galactic plain; perhaps Dr. Paul Laviolette's galactic wave theory is valid
misterwa # 10 июня 2013 в 08:57 0
Better: Then get the hell out of THERE
rubenman # 10 июня 2013 в 21:46 0
nobody care's about your imagenairy friend
zachi # 11 июня 2013 в 19:52 0
facts > faith noob
theblack # 11 июня 2013 в 21:58 0
Your religion will burn along with you and your whole idiotic family. lol
sava # 12 июня 2013 в 11:45 0
I see a monstrer in my pants :O
zwheelch # 13 июня 2013 в 12:44 0
0:58 ! it sounded like a MOAB COUNTDOWN
zwheelch # 16 июня 2013 в 13:58 0
i hate cod you know... I prefer BF3
clubbyth # 17 июня 2013 в 14:18 0
I really don't care if you don't know what a MOAB countdown is. And also just because I know something in CoD doesn't make me a CoD fag. I know a few guns in CoD so that must mean I'm a CoD fag. Your logic...
clubbyth # 18 июня 2013 в 07:50 0
As I said earlier on, just because I know about CoD doesn't make me a CoD fag... I simply called him a CoD fag because he is comparing something in this video to CoD. I don't do that and most people don't do it either. Your logic isn't making much sense and yet your saying my logic isn't making sense either so why tell me to check mine?
clubbyth # 18 июня 2013 в 17:19 0
Have you been following anything i've said? I said CoD fags are people who compare something in CoD to a real life object such a weapon or such. You need to carefully read and think about what you say...
clubbyth # 18 июня 2013 в 20:54 0
Well actually, it doesn't even sound like what it was compared to. It's like comparing a horse neigh to a nuclear explosion. A lot of people would have control over comparisons of something which sounds completely different.
clubbyth # 20 июня 2013 в 01:50 0
You do realise you're not making any point. You're just rephrasing the same sentence over and over. I know you can't hear Barack Obama and not decide to recognise it. But what I am saying is that you can't really compare Obama to a MOAB sound or anything from CoD but somehow, these people I call "CoD fags', find some way to find similarities and decide to say, "Hey, I think Obama sounds like a MOAB." You really need to pay attention to what I am saying and stop thinking what you want to hear.
hugga4u # 20 июня 2013 в 05:30 0
GAY
ikicky58 # 21 июня 2013 в 15:43 0
this may seem childish, but i think all the nations on earth shud be more focused on space exploration. we shud know where we are in the universe! what if the universe doesnt go on forever and thers just a black styrofoam wall that we can smash thru to get to heaven. That last part was very childish.
mcchulo # 21 июня 2013 в 16:10 0
How can you name something so beautiful a bunch of numbers and letters lol
nitrozzy # 22 июня 2013 в 11:39 0
I believe big black holes is why galaxies exist the way they do. This spinning disk around the b.h. looks a lot like a galaxy. This is what makes me believe that.
nitrozzy # 22 июня 2013 в 11:55 0
You just inspired enough confidence to say the following: Black holes shape the mater and energy around them in a doughnut-shaped perpetuated rotating system, that is so massive we only perceive it as energy shooting up/down from their centre. In other words, b.h. are not the consumers of the universe but instead the accelerators/transformers of mater and energy. B.h. are two counter rotating disks of gravity with half a doughnut each.I believe this because they seem to move like water.
supertat # 25 июня 2013 в 00:23 0
no entendi nada!
themaste # 28 июня 2013 в 14:08 0
shove them up your ass
antifoul # 29 июня 2013 в 07:35 0
D'oh,I wish I paid more attention to that wheelchair guy.
kush # 29 июня 2013 в 10:44 0
That was funny
brahmin2 # 29 июня 2013 в 15:58 0
my master is here...!!!!
goretorn # 1 июля 2013 в 17:37 0
Don't you just love science? I do!
jiberish # 1 июля 2013 в 19:15 0
I really wish people would leave their pseudo science separate from this real science, and stop misinforming the ignorant and gullible.
lemonzee # 1 июля 2013 в 22:59 0
hookah60 # 2 июля 2013 в 06:52 0
Nice background music!
adonis # 2 июля 2013 в 09:28 0
dark hole?
jnp232 # 2 июля 2013 в 19:04 0
wait thought they couldn't find black hole because we can't see black hole
unacomn # 4 июля 2013 в 22:01 0
If we don't get up back among the stars, exploring at least this solar system, in my life time, I'm going to be so upset that I may just spontaneously become immortal and do it myself.
daphnehc # 6 июля 2013 в 21:25 0
same here!! my birthday wishes every year is to become immortal so that i can go to space one day! XD
lastinde # 10 июля 2013 в 06:47 0
Donate some money to Aubrey de Grey at sens..org or mfoundation..org and your chances just may improve..
lumeriap # 11 июля 2013 в 17:16 0
Need help??? in exploring i mean.. becoming immortal isn't that hard,..
dread313 # 12 июля 2013 в 03:52 0
eh, space will be there. Lets spend the money on saving lives first here on earth first.
abyousir # 13 июля 2013 в 10:14 0
Actually, the first commercial space flight happened a couple weeks ago from a company called SpaceX. It was unmanned, and only sent some supplies to the Space Station, but I bet you could arrange something if you had the money. There's also the X PRIZE Foundation for more information about commercial spacecraft. It's exciting stuff!