Black Hole At Center of Milky Way Confirmed
Smivs writes "The BBC are reporting that a German team has confirmed the existence of a Black Hole at the center of the Milky Way.
Astronomers tracked the movement of 28 stars circling the center of the Milky Way, using the 3.5m New Technology Telescope and the 8.2m Very Large Telescope (VLT) in Chile. Both are operated by the European Southern Observatory (Eso).
The black hole is four million times heavier than our Sun, according to the paper in The Astrophysical Journal.
According to Dr Robert Massey, of the Royal Astronomical Society (RAS), the results suggest that galaxies form around giant black holes in the way that a pearl forms around grit."
...dark matter makes a black perl?
The simple truth is that interstellar distances will not fit into the human imagination
- Douglas Adams
Boy, that sucks.
n/t
Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
Seriously (surely no one missed the bad relativity joke in that title :-p) though, are black holes really still considered theoretical constructs? For example, Wikipedia starts with "A black hole is a theoretical region of space in which the gravitational field is so powerful that ...". And for Wikipedia haters, this is repeated in literature too.
Meanwhile, in this article -- "the best empirical evidence that super-massive black holes do exist". And besides, I thought many scientific articles bring up black holes now and then without questioning, anyway.
Beware: In C++, your friends can see your privates!
Come on folks its time to have fun with the arts students again. We are all going to die because as we know a black hole sucks everything into it and these guys have only just discovered it which means it must be new so it can only be a matter of days/weeks/months a year at most before our solar system is devoured by this giant black hole.
Run for the hills, there is no escape.
Ahhh arts students, the sort of people who fall for the "di-hydrogen monoxide is potentially lethal but the government are letting it into our water supplies".
An Eye for an Eye will make the whole world blind - Gandhi
Here is the press release from ESO
... that they have names (Antu, Kueyen, Melipal, Yepun) for the individual telescopes in the VLT, but could only come up with "very large telescope" for the whole array.
Please include at least a transformers reference in the next one. Thanks.
...or the remants of it, anyway.
Someone at the center of our galaxy obviously beat us to getting their Large Hadron Collider working before we did.
"National Security is the chief cause of national insecurity." - Celine's First Law
Exactly. The pulsars emit gamma rays like the dung beetle emit pheromones. The planets circle their star like insects circle a dome light in the porch. Analogies form in the mind of submitters and editors of slashdot the same way driftwood washes up in the beaches of South Carolina.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
So black holes are irritating to the Great Space Oyster which deposits stars, dust, and gas around it to prevent irritation?
There's my nomination for worst science analogy this year.
Due to the huge time distortion of such a massive black hole, PBS NOVA aired a show on the same subject 3 months ago http://www.pbs.org/wgbh/nova/blackhole/ Seems the German research got sucked back in time and used to show the orbits of the stars around the black hole.
The world is made by those who show up for the job.
When i heard that there were black holes in other galaxies, i was fine with that, since they are so far away. But now i hear there is one in OUR galaxy? That's kinda scary, since its so close to us!
Are we on the same plane as the accretion disk?
Yes.
How close are we to the event horizon? How close is the sun to the event horizon?
Far. 40-50 thousand light years.
Is it possible to collect and examine the radiation from black hole by approaching it from the "top"?
Yes, hypothetically. However, the black hole is not "feeding" at the moment, meaning there is not much radiation coming from it. If it were in full quasar mode, we would have identified it a long, long time ago.
http://arxiv.org/abs/0810.4674
Amazing that a star they studied orbited the galactic center in only 16 years.
The paper seems to assume the existence of black holes; it addresses their observations rather than any theoretical causes. Saying these observations confirm a black hole seems a bit of a stretch. It just confirms that stars are circling around the galactic center, which may or may not contain anything at all.
To quote Carl Sagan, "They laughed at Galileo. They laughed at Newton. But they also laughed at Bozo the Clown."
And you can help the advancement of science by not drowning out the reasoned discussion of *actual scientists* by not blathering on about nonsense. Science is all about the signal-to-noise, you know.
"I guess the moral of the story is, don't paint your airship with rocket fuel." -- Addison Bain
All drains lead to the ocean!
Multidimensional compression due to intense and increasing effects of gravitation. ...So, if we were being sucked into a black hole, would every object in the universe appear to be moving away from us.
If the source of the gravity was sufficiently large would it appear that the effect locally would be minuscule, while causing us to believe in a non steady state every expanding universe because all distant observable phenomena appear to be moving away from us?
Is it possible that the redshifts in the spectra are caused by us speeding away from the light as the space we are occupying gets stretched and twisted by gravity due to the effects of a spinning black hole?
Just a thought.