Black Holes part 2

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Profile Lynn Special Project $75 donor
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Message 1341342 - Posted: 27 Feb 2013, 19:57:28 UTC - in response to Message 1338370.  


First glimpse of a black hole's spin


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Message 1341346 - Posted: 27 Feb 2013, 20:04:14 UTC

That was really interesting. The infinite density of mass aproaching the speed of light seems to be a black hole normal density. That is really an extreme rotation!

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Message 1343034 - Posted: 4 Mar 2013, 19:11:59 UTC

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Message 1343806 - Posted: 7 Mar 2013, 19:36:37 UTC

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Message 1365040 - Posted: 6 May 2013, 5:47:23 UTC - in response to Message 1291845.  

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Message 1365628 - Posted: 8 May 2013, 6:00:25 UTC - in response to Message 1291871.  
Last modified: 8 May 2013, 6:02:11 UTC

Johnny I think you should respect a man that does know this stuff Tullio and worked in the field and is now retired

When smart men talk you should listen
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Message 1365636 - Posted: 8 May 2013, 6:23:40 UTC - in response to Message 1365628.  
Last modified: 8 May 2013, 6:25:59 UTC

“Our Galaxy’s black hole may be cooking its dinner right in front of Herschel’s eyes.”




Supermassive black hole feasts on hot gas for dinner


It’s not everyday that you get to see what’s on a black hole’s dinner menu. The European Space Agency’s Herschel space observatory has spotted hot molecular gas that may be circling or falling towards the supermassive black hole located at the center of our Milky Way galaxy.
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Message 1365791 - Posted: 8 May 2013, 17:01:18 UTC

Interesting, Lynn:)
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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 1368994 - Posted: 17 May 2013, 16:30:29 UTC

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

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


 
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