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The First Picture of Black Hole

The First Picture of Black Hole
Black Hole



Before the first image of Black hole


Our great scientists John Michell and Pierre simon Laplace first ever said or say given a hint similar to the concept of Black hole in 18th century that they sail there is something or object whose gravitational fields are too strong also for light to escape.

After that Karl Schwarzschild in 1916 given the first modern solution of general relativity that would characterize a black hole.

First ever image of a black hole


The supermassive black hole is 40 billion kms wide and it is at a distance of approx 500 million trillions kms away from earth. This black hole is found in Galaxy M87 (Messier 87). The distance of this Black hole in terms of light year is 50 million light years away from earth.


Messier 87 Galaxy

It is one of the most massive galaxies in the local universe and this massive galaxy contains this massive supper active supermassive black hole at its core.

And the black hole was imaged in 2019 by the Event Horizon Telescope.


Event Horizon Telescope

This the Event Horizon Telescope (EHT) is in itself a project to create a large telescope array consisting of a global network of radio telescope and then after all the data were combined from several very- long -baseline - interfarometry (VLBI)  stations around the Earth.

And the aim of this is to observe the immediate environment of the super massive black hole sagittarius A*  at the center of the Milky way,  as well as to observe also larger black hole in the center of the supergiant elliptical galaxy (Messier 87), with angular resolution comparable to the black holes event Horizon.


The Important observatory

The important observatory envolved in this Event Horizon Telescope is follows:-

1) "ALMA" observatory at the height of 16,500 ft from sea level in chile.

2) "Keck" observatory at the height of 14,000 ft from sea level.

3) Very large array group of observatory at the height of 7,000 ft from sea level.
     In this three observatory work in combined form.

4) Kitt Peak observatory at the height of 6,900 ft from sea level.

5) Palamar observatory at the height of 5,600 ft from sea level.

    So, overall eight observatory are involved in this happening.



And all these observatory were worked in combined form that they worked together and countries which are involved are Japan, USA, Canada, etc. So, this Immortal Image of black of is a product team work.


What is the Red Ring around black hole ?


The British ring visible in all of these image of the black hole accreation disk, is the gas which is being sucked toward the center and gets heated until it begins to glow, and the disk appears brighter on one side is because of the doppler's effect.



Doppler's effect in terms of light is defined as the  "light moving toward us seems to go faster from our point of view, while light moving away from us goes slower".



Basic Black Hole Anatomy













Now, this event horizon is related to black hole that if any thing comes near to event horizon then it immediately comes in effect black hole even light also comes in effect of Black hole if it comes in event horizon.






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