Author Topic: Exciting New Study Confirms Blackhole Sgt A* Really Exists  (Read 231 times)

Exciting New Study Confirms Blackhole Sgt A* Really Exists
« on: November 12, 2018, 04:32:37 PM »
Quote
In this video, we will talk about new visual evidence of the existence of the blackhole in the middle of the Milky Way galaxy known as Sagittarius A*



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I don't think many astrophysicists doubted the existence of this black hole, but it's nice to get confirmation.
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"In life, unlike chess, the game continues after checkmate."
Isaac Asimov

Offline Baruch

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #1 on: November 12, 2018, 04:41:37 PM »
Report URL fails.  The video is good.  This is probably what they are talking about having evidence of ...

There is a zone where you can't not spiral into the black hole.  But besides that, there is a zone where you can't not orbit the black hole.  This is the ergosphere.

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This article shows the various zones of rotation black holes.  It is more complicated than the simplistic non-rotating black hole model most people are familiar with.
« Last Edit: November 12, 2018, 04:51:24 PM by Baruch »
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luu shalmaata luu balt’aata
May you be well, may you be healthy

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #2 on: November 13, 2018, 07:12:39 AM »
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I don't think many astrophysicists doubted the existence of this black hole, but it's nice to get confirmation.
So how do I get all my ink pens and my car keys out of there?
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Offline PopeyesPappy

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #3 on: November 13, 2018, 07:45:01 AM »
It is nice to have "another" line of evidence to support the existence of Sagittarius A, but the claim made in the video that this was the first observational evidence is incorrect. Scientists at UCLA and the Max Planck Institute have been tracking the orbits of several stars around Sagittarius A for more than two decades. That's long enough to track S0-2 for more than 2 full orbits and calculate the orbits of S0-16 and S0-19 with a high degree of certainty. Those orbits can't be explained by anything but a supermassive black hole.



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Offline drunkenshoe

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #4 on: November 13, 2018, 08:33:19 AM »
May be they mean the first detailed observation? Because I saw other links.

Offline Baruch

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #5 on: November 13, 2018, 01:21:32 PM »
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May be they mean the first detailed observation? Because I saw other links.

No, scientists have to talk like Trump about their current brain child ... to get more funding.
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luu shalmaata luu balt’aata
May you be well, may you be healthy

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #6 on: November 13, 2018, 01:22:51 PM »
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So how do I get all my ink pens and my car keys out of there?


Um...carefully?
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"In life, unlike chess, the game continues after checkmate."
Isaac Asimov

Offline Baruch

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #7 on: November 13, 2018, 01:23:54 PM »
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Um...carefully?

Ultimate sci-fi roach motel ... Disney Inc checks in (remember that movie?) but doesn't check out.
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luu shalmaata luu balt’aata
May you be well, may you be healthy

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #8 on: November 13, 2018, 01:25:24 PM »
It seems there may be a whole swarm of black holes near the galactic center:

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"In life, unlike chess, the game continues after checkmate."
Isaac Asimov

Offline Baruch

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #9 on: November 13, 2018, 06:33:08 PM »
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It seems there may be a whole swarm of black holes near the galactic center:

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Definitely where Spock's brother, and angels, fear to red.
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luu shalmaata luu balt’aata
May you be well, may you be healthy

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #10 on: November 14, 2018, 05:56:33 AM »
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It seems there may be a whole swarm of black holes near the galactic center:

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Mutual gravitational attraction? The SMBH is an attention freak?
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Re: Exciting New Study Confirms Blackhole Sgt A* Really Exists
« Reply #11 on: November 14, 2018, 02:09:13 PM »
Yeah, black hole groupies - who knew!? :-D
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"In life, unlike chess, the game continues after checkmate."
Isaac Asimov

 

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