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INDI Library v1.8.1 Released (09 Sep 2019)

Monthly maintenance release INDI v1.8.1

Real Black Hole

7 months 1 week ago 7 months 1 week ago by Kaczorek.
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Real Black Hole #37565
The image of the central black hole in Virgo Galaxy A (M87) has been just released!


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Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM
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7 months 1 week ago
CygnusX1
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Real Black Hole #37567
That is a very nice image. Thanks for sharing!

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Richard

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7 months 6 days ago 7 months 6 days ago by Gonzothegreat.
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Real Black Hole #37605
To put the size in perspective...


source: xkcd.com/2135/

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7 months 5 days ago
stash
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Real Black Hole #37662
I Quote someone from Sky At Night who says - "Technically they haven’t imaged the black hole as it is a singularity, what they’ve done is clearly image the event horizon just as material is super heated then falls in and disappears"

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7 months 5 days ago
Kaczorek
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Real Black Hole #37668
This actually true. It's like imaging silhouette of a man in a backlight. Still it is a picture of a man ;-)

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Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM

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7 months 5 days ago
wvreeven
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Real Black Hole #37669
Also, the term black hole commonly refers to anything within the even horizon and not just the singularity.

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7 months 5 days ago
Kaczorek
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Real Black Hole #37671

wvreeven wrote: Also, the term black hole commonly refers to anything within the even horizon and not just the singularity.

Is even horizon part of a black hole? I think it is, as it is specific to this object, also as Schwarzschild's solution to Einstein's field equations.

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7 months 5 days ago
wvreeven
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Real Black Hole #37672
Well, I guess that depends on your definition. Simply put, a black hole is a region in space from which nothing can escape, not even light. The event horizon is the boundary between normal space and the black hole. Does that make it part of the black hole? It probably is. And I’d say the even horizon is an infinitesimally thin line but I may be, and probably am, wrong about that.

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7 months 5 days ago 7 months 5 days ago by Kaczorek.
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Real Black Hole #37674
I think you're absolutely right. In this view it's not even an image of even horizon, but particles sliding on it.
There's quite nice explanation of the topic in this video.

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Radek Kaczorek
Astroberry Server | NEQ6 | Atik 460EX | Atik EFW2 | ASI 120MM

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