Image of a black hole

[DrBeta]

1 minute ago, Staysafebro said:

It is the image of the light emitted by matter surrounding the black hole and not the black hole itself. 

Oh! Is it still light waves then?

[DrBeta]

8 minutes ago, Staysafebro said:

It is the image of the light emitted by matter surrounding the black hole and not the black hole itself. 

My question is this, when you take an image of something, light falls on it and then it is reflected to fall on a lens to collect an image, right? In this case, since light is going to bend around the black hole, any light that falls near the surface will not directly be reflected from the surface, but is bent (diffracted). So how is it still reaching the lens in order for us to image anything nearby. 

[Staysafebro]

5 minutes ago, DrBeta said:

Oh! Is it still light waves then?

Observations were not in visible light. The picture shows it in the visible spectrum. 

[Staysafebro]

5 minutes ago, DrBeta said:

My question is this, when you take an image of something, light falls on it and then it is reflected to fall on a lens to collect an image, right? In this case, since light is going to bend around the black hole, any light that falls near the surface will not directly be reflected from the surface, but is bent (diffracted). So how is it still reaching the lens in order for us to image anything nearby. 

Nothing from the black hole is recorded. Only observations from the surrounding matter. In the picture they have shown that nothingness in black color. 

[DrBeta]

9 minutes ago, Staysafebro said:

Observations were not in visible light. The picture shows it in the visible spectrum. 

So the reconstructed images are shown as visible spectrum but they used radio waves to actually image the particles surrounding the black hole? Interesting. 

[vankarodu]

29 minutes ago, DrBeta said:

If back hole has that strong of a gravitational potential, how is light escaping the black hole to reflect and show an image? How are they able to take the picture of a black hole using light?

It's not black hole light.

it's light from the gas cloud spinning around it at high velocity due to high gravitation

the black spot is its shadow

[DrBeta]

Just now, vankarodu said:

It's not black hole light.

it's light from the gas cloud spinning around it at high velocity due to high gravitation

the black spot is its shadow

I know the black hole is the black spot. I am talking about the light surrounding it ofcourse. I was wondering why the black hole is not bending those waves, and if it does, how they are able to image it.

[Staysafebro]

Just now, DrBeta said:

So the reconstructed images are shown are a visible spectrum but they used radio waves to actually image the particles surrounding the black hole? Interesting. 

Obv. Really dim objects on infrared, but anything beyond that is radio. This is just an interpretation.

CNN dumbos running fake articles again. MIT is also giving the credit to only one person where as there were many people who wrote the code and worked on this project. A certain Japanese team had a major share of the work here. None credited. #killingtherealworkerbees

https://m.imgur.com/a/668XsMz

[vankarodu]

1 minute ago, DrBeta said:

I know the black hole is the black spot. I am talking about the light surrounding it ofcourse. I was wondering why the black hole is not bending those waves, and if it does, how they are able to image it.

everything outside Event horizon horizon will be free to escape

Of course we are seeing the bent image of gas cloud

 

 

[Staysafebro]

4 minutes ago, DrBeta said:

I know the black hole is the black spot. I am talking about the light surrounding it ofcourse. I was wondering why the black hole is not bending those waves, and if it does, how they are able to image it.

The surrounding matter is not inside the event horizon. 

[DrBeta]

2 minutes ago, Staysafebro said:

The surrounding matter is not inside the event horizon. 

Hmm... Wonder how big the horizon is based on the size of the back hole. Probably enough theoretical physicists working on it already, enough to estimate how much area they need to image using radio waves. 

[DrBeta]

5 minutes ago, Staysafebro said:

Obv. Really dim objects on infrared, but anything beyond that is radio. This is just an interpretation.

CNN dumbos running fake articles again. MIT is also giving the credit to only one person where as there were many people who wrote the code and worked on this project. A certain Japanese team had a major share of the work here. None credited. #killingtherealworkerbees

https://m.imgur.com/a/668XsMz

IR shouldn't have that much of penetration. I would be surprised if it reaches that far without being scattered on the way. I think it should be primarily radio waves. 

[DrBeta]

7 minutes ago, vankarodu said:

everything outside Event horizon horizon will be free to escape

Of course we are seeing the bent image of gas cloud

 

 

Interesting. They probably calculate the horizon based on the size of the black hole and the gravitational fields.

[Staysafebro]

Just now, DrBeta said:

Hmm... Wonder how big the horizon is based on the size of the back hole. Probably enough theoretical physicists working on it already, enough to estimate how much area they need to image using radio waves. 

Depends on the mass of the black hole and it is defined by Schwarzschild radius.

 

[Staysafebro]

2 minutes ago, DrBeta said:

IR shouldn't have that much of penetration. I would be surprised if it reaches that far without being scattered on the way. I think it should be primarily radio waves. 

It is only radio as this is beyond infrared.