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Astronomy Picture of the Day - GW200115: Simulation of a Black Hole Merging with a Neutron Star
APOD.NASA.gov ^ | 14 Jul, 2021 | Video Credit: Simulation: S.V. Chaurasia (Stockholm U.), T. Dietrich (Potsdam U. & MPIGP); Visualiza

Posted on 07/14/2021 4:19:38 PM PDT by MtnClimber

Explanation: What happens when a black hole destroys a neutron star? Analyses indicate that just such an event created gravitational wave event GW200115, detected in 2020 January by LIGO and Virgo observatories. To better understand the unusual event, the featured visualization was created from a computer simulation. The visualization video starts with the black hole (about 6 times the Sun's mass) and neutron star (about 1.5 times the Sun's mass) circling each other, together emitting an increasing amount of gravitational radiation. The picturesque pattern of gravitational wave emission is shown in blue. The duo spiral together increasingly fast until the neutron star becomes completely absorbed by the black hole. Since the neutron star did not break apart during the collision, little light escaped -- which matches the lack of an observed optical counterpart. The remaining black hole rings briefly, and as that dies down so do the emitted gravitational waves. The 30-second time-lapse video may seem short, but it actually lasts about 1000 times longer than the real merger event.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
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To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).
1 posted on 07/14/2021 4:19:38 PM PDT by MtnClimber
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; AZ .44 MAG; BBB333; ...
Today's image is a visualization video at the link.

Pinging the APOD list.

đŸȘ 🌟 🌌


2 posted on 07/14/2021 4:20:06 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Kamala & Bruce Jenner?

Re: Black Ho Merging with a Neutered Star


3 posted on 07/14/2021 4:22:43 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: ETL

I think that you are right! Arnold the pig predicted this would happen.


4 posted on 07/14/2021 4:24:30 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

No picture? Black hole must have got it.


5 posted on 07/14/2021 4:26:32 PM PDT by DannyTN
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To: MtnClimber

Simulation of a Black Hole Merging with a Neutron Star
For the real thing just go to San Francisco!


6 posted on 07/14/2021 4:34:49 PM PDT by minnesota_bound (I need more money. )
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To: MtnClimber
I think that you are right! Arnold the pig predicted this would happen.

Green Acres
Episode: Where There's a Will

One storyline has Arnold [The Pig] inheriting millions of dollars as the sole descendant of the favorite pig of a pork-packing magnate, distinguished by his ability to predict the weather with his tail. Some doubt exists as to Arnold’s weather prediction skills when, during the claims process for the money, his tail predicts snow in the middle of warm weather.

This prediction is disbelieved and Oliver finds himself in a difficult situation checking out of an expensive hotel, because he has to deal with Arnold’s expensive bill being deemed Arnold’s “Pig Lawyer” by the town of Hooterville.

However, during this difficulty, Arnold’s seemingly impossible prediction proves accurate when a freak snowstorm buries the city. So the hotel welcomes Arnold back with open arms.

https://en.wikipedia.org/wiki/Arnold_Ziffel#Situations

7 posted on 07/14/2021 4:40:19 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: MtnClimber; DannyTN

8 posted on 07/14/2021 4:57:55 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: ETL

9 posted on 07/14/2021 5:10:54 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: mylife

Sorry, but what does that have to do with that animation I posted?


10 posted on 07/14/2021 5:12:43 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: mylife

“Is it a boy or a girl?”

“I think it’s a little early to start imposing roles on it, don’t you?”


11 posted on 07/14/2021 5:13:01 PM PDT by dfwgator (Endut! Hoch Hech!)
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To: MtnClimber

Pretty impressive the neutron star stayed intact. It shows how dense the neutron star matter is. The neutron has the mass of 1.8 Suns compacted to an object the size of a city.


12 posted on 07/14/2021 5:24:27 PM PDT by C19fan
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To: C19fan
“They [Neutron Stars] have densities of 10^17 kg/m^3 [10 to the 17th power!], meaning that a teaspoon of neutron star material would weigh around a billion tons.”

https://astronomy.swin.edu.au/cosmos/N/Neutron+Star

13 posted on 07/14/2021 5:31:26 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: ETL

Just like our constitution.


14 posted on 07/14/2021 5:39:59 PM PDT by Organic Panic (Democrats. Memories as short as Joe Biden's eyes.)
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To: dfwgator

:)


15 posted on 07/14/2021 5:43:22 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: ETL

Nevemind..


16 posted on 07/14/2021 5:44:48 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
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To: mylife

OK.


17 posted on 07/14/2021 5:49:02 PM PDT by ETL (REAL Russia collusion! DEMOCRAT-Russia collusion!! CHINA-Russia collusion! Click ETL...)
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To: MtnClimber

Check out “spiral together” for a representation of life for those who do not consume MSM media.


18 posted on 07/14/2021 5:51:24 PM PDT by gloryblaze
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To: dfwgator
“Is it a boy or a girl?”

Quoth David Bowie whilst writing "Rebel Rebel".

19 posted on 07/14/2021 6:17:20 PM PDT by AFB-XYZ (Stand up, or bend over)
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To: ETL

Stoppit, yer killin’ me! Heh! :-)


20 posted on 07/14/2021 6:18:02 PM PDT by AFB-XYZ (Stand up, or bend over)
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