Black Holes part 2

Message boards : Science (non-SETI) : Black Holes part 2

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Message 1365895 - Posted: 8 May 2013, 23:33:55 UTC - in response to Message 1365791.

Interesting, Lynn:)


Yes it is interesting, Julie, hope it stays 26,000 light-years away from earth.

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Message 1365902 - Posted: 9 May 2013, 0:17:58 UTC - in response to Message 1365895.

Interesting, Lynn:)


Yes it is interesting, Julie, hope it stays 26,000 light-years away from earth.

+1

I am really enjoying the great links, and raw science. We may eventually end up with a Black Holes part 3. :D

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Message 1365987 - Posted: 9 May 2013, 7:51:34 UTC - in response to Message 1365902.

Interesting, Lynn:)


Yes it is interesting, Julie, hope it stays 26,000 light-years away from earth.

+1

I am really enjoying the great links, and raw science. We may eventually end up with a Black Holes part 3. :D

Steve



I was thinking the same thing, Steve

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Message 1365990 - Posted: 9 May 2013, 7:59:49 UTC

+1



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Message 1368368 - Posted: 16 May 2013, 6:21:54 UTC - in response to Message 1365990.

Huge one!


Black Hole-Powered Jets Plow Into Galaxy




This composite image of a galaxy illustrates how the intense gravity of a supermassive black hole can be tapped to generate immense power. The image contains X-ray data from NASA's Chandra X-ray Observatory (blue), optical light obtained with the Hubble Space Telescope (gold) and radio waves from the NSF’s Very Large Array (pink).

This multi-wavelength view shows 4C+29.30, a galaxy located some 850 million light years from Earth. The radio emission comes from two jets of particles that are speeding at millions of miles per hour away from a supermassive black hole at the center of the galaxy. The estimated mass of the black hole is about 100 million times the mass of our Sun. The ends of the jets show larger areas of radio emission located outside the galaxy.

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Message 1368373 - Posted: 16 May 2013, 6:39:41 UTC - in response to Message 1368368.

Thanks Lynn



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Message 1368383 - Posted: 16 May 2013, 7:12:03 UTC - in response to Message 1368368.
Last modified: 16 May 2013, 7:15:14 UTC

When i read about some Astronomical phenomenon that beggars our belief in what we as humans can conceptualize, i wonder, is "This a Galactic Civilization in action".
I doubt that all the Wonders of the Universe are solely due to "Nature".
For all we know a moderately advanced civilization might induce a Jovian like planetoid into becoming a singularity as the heart of grand energy generator as a prelude to even greater advancement.
The theoretical mass-to-energy conversion of a singularity is 50%.

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Message 1368994 - Posted: 17 May 2013, 16:30:29 UTC

NGC 6240:
Never Before Seen: Two Supermassive Black Holes in Same Galaxy



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Message 1380131 - Posted: 12 Jun 2013, 5:41:15 UTC - in response to Message 1368994.
Last modified: 12 Jun 2013, 5:44:33 UTC


Black Hole Naps Amidst Stellar Chaos


Nearly a decade ago, NASA's Chandra X-ray Observatory caught signs of what appeared to be a black hole snacking on gas at the middle of the nearby Sculptor galaxy. Now, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), which sees higher-energy X-ray light, has taken a peek and found the black hole asleep.


The Sculptor galaxy is seen in a new light, in this composite image from NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Southern Observatory in Chile. Image credit: NASA/JPL-Caltech/JHU


I love black holes! Did they form exactly when the "big bang", happened?

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Message 1380214 - Posted: 12 Jun 2013, 9:47:07 UTC

I love black holes! Did they form exactly when the "big bang", happened?

In my opinion no, I have given my reasons before, but as no-one else agrees with me, I won't bore you with it! Be interesting to see others opinions though.

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Message 1380400 - Posted: 12 Jun 2013, 18:22:53 UTC - in response to Message 1380214.

I think that to solve this problem was one of the purposes of the LISA gravitational wave detector based on three satellites, to detect the long wavelength/small frequency GWs generated in the Big Bang. The mission was abandoned by NASA for budgetary reasons and is carried on by the European Space Agency. The LISA Pathfinder mission should go in orbit in 2015 aboard the VEGA launcher just to test the experimental apparatus but the full LISA mission is still in doubt.
Tullio


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Message 1380567 - Posted: 13 Jun 2013, 7:18:48 UTC

Black hole eats giant planet



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Message 1380624 - Posted: 13 Jun 2013, 11:37:05 UTC - in response to Message 1380567.

ESA animation.


again, never any 'real' pictures. always animations, artist paintings, color imaging from datas...

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Message 1380670 - Posted: 13 Jun 2013, 14:05:42 UTC - in response to Message 1380624.
Last modified: 13 Jun 2013, 14:06:38 UTC

ESA animation.

again, never any 'real' pictures. always animations, artist paintings, color imaging from datas...

As in a simulation such as this display?

Black Hole Eats Star - NASA Simulation


The simulations are useful tools to fill in the gaps in the extreme data that we can't see or directly detect. Simulations are also very useful experimental tools to test ideas and to test test-data.

And the media love such stuff because it 'looks pretty'. The science and/or educational bits often get left behind... Such is the power of Hollywood?


And then we have real scientific observation which is a complete turn-off to most people until you can realize what is being shown.

Keep searchin',
Martin
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Message 1380794 - Posted: 13 Jun 2013, 18:42:16 UTC - in response to Message 1380670.


NASA's Chandra Turns Up Black Hole Bonanza in Galaxy Next Door


Using data from NASA's Chandra X-ray Observatory, astronomers have discovered an unprecedented bonanza of black holes in the Andromeda Galaxy, one of the nearest galaxies to the Milky Way.

Using more than 150 Chandra observations, spread over 13 years, researchers identified 26 black hole candidates, the largest number to date, in a galaxy outside our own. Many consider Andromeda to be a sister galaxy to the Milky Way. The two ultimately will collide, several billion years from now.

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Message 1404890 - Posted: 19 Aug 2013, 0:30:10 UTC - in response to Message 1380794.

Strange...


Strange, Pulsating Star Found


A strange, pulsing star has revealed a powerful magnetic field around the giant black hole at the heart of Earth’s Milky Way galaxy, scientists say.

The finding may help shed light on how the galaxy's supermassive black hole devours matter around it and spits out powerful jets of superhot matter, the researchers added.

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Message 1409531 - Posted: 29 Aug 2013, 21:48:11 UTC - in response to Message 1404890.

Every galaxy has one. Earth has a super massive one.


http://www.nasa.gov/mission_pages/chandra/multimedia/black-hole-SagittariusA.html#.Uh-7-3-ZvSc

Supermassive Black Hole Sagittarius A*

The center of the Milky Way galaxy, with the supermassive black hole Sagittarius A* (Sgr A*), located in the middle, is revealed in these images. As described in our press release, astronomers have used NASA’s Chandra X-ray Observatory to take a major step in understanding why material around Sgr A* is extraordinarily faint in X-rays.

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Message 1409610 - Posted: 30 Aug 2013, 1:38:45 UTC

I believe in Karl Schwarzschild radii.

Funny thing about this subject is that the math is taken on faith. Now don't get all worked about this people. Take a deep breath...

The math in my opinion is correct. The story that is around the math is sound logic. But you believe, as I do in something you cannot see and you believe this because of logic and a faith.

Your belief system is no different than mine.


Must not conflict resolve by suggesting that someone should go sit on an ice pick...

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Message 1409618 - Posted: 30 Aug 2013, 2:50:00 UTC
Last modified: 30 Aug 2013, 2:53:38 UTC

Black holes are not a matter of faith. They are predicted by Einsteins theory of general relativity. Although long before that it was discussed that light would not be able to escape objects with large gravity fields, if I remember correctly Laplace was involved but I cannot remember the other person. I remember Laplace was involved because I have had reason to look at Laplace and his transforms along with Fourier transforms.

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Message 1409730 - Posted: 30 Aug 2013, 10:53:18 UTC

Black holes are one of the few phenomena in the Universe we're able to explain a bit even though they still remain a big mystery...



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Message boards : Science (non-SETI) : Black Holes part 2


 
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