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Sunday, August 4, 2019

What is a black hole?

Scientists have finally released a photo of a black hole (black hole). Scientists have released the first image of a black hole in the M-7 galaxy (galaxy), some 10 million light years away from Earth.
The image of the black hole we have always imagined. According to Nepali time on Wednesday, the photo, which was made public at 7pm, looks exactly the same as we had imagined.

This black hole is 7.2 billion times larger than the sun. It is the heaviest and largest black hole in the universe. Although the image looks a bit irregular, the bright ring shape is obvious. Even the light does not escape from the black hole. The image made by scientists is a shadow of black. It is not possible to take a realistic picture of a black hole because it does not escape the light.

Astronomers have managed to capture this image with the help of the Event Horizon Telescope (EHT). The Event Horizon Telescope is a network of 6 different telescopes in the world. According to a report published in the Astro Physics Journal Letter, two hundred scientists from 19 institutions in 9 different countries of the world were involved in the work. The purpose of which was to capture a photo of the black hole event Horizon.

Event Horizon is also called Point of No Return, where no object can come out upon arrival. This is a hypothetical surface around a black hole that has been scientifically proven by scientists. Everyone is interested in how it was possible to take a picture of this object far beyond the earth.

Here's how:

The Event Horizon Telescope is a radio telescope. Which is a collective effort of various radio telescopes around the world from which a massive imaginary radio telescope, such as the Earth, was created. It is a joint effort of six radio observatory teams of the world.All radio telescopes were set to the same target. This fictitious telescope was located 4,000 miles away from Earth. This task was very difficult. Scientists have used the 'Atomic Clock' for this. Special consideration was also given to the wavelength.

According to various reports, data from telescopes was estimated to have collected more than 100,000,000 GB. Was processed in Germany. The data obtained were analyzed with the help of a supercomputer.The data was collected on hardium-filled hard disks. Hard disks were sent from the airplane when data was not transmitted via the Internet. It used radio imaging to generate image data from different types of waves.Telescopes are located in different places. It is located in areas where there is no human settlement and the effects of a desolate sky and atmospheric gases are slight. An airborne and volcanic area of ​​Mexico, mountains of the state of Arizona and Sierra Nevada in Spanish and desert in Antarctica and Antarctica in Chile's Ataca.

Symposium of Astro Physics Journal Letter:

Astro Physics Journal has published two papers on the work of the Event Horizon Telescope. The research report contains all the details of the project and the achievements so far.
The first paper contains a picture of a black hole and a summary of achievements. Which contains the complete details of the project and the achievements so far. The second paper describes the series (array) of the Event Horizon Telescope. Which contains observations and telescopes related to the black hole. The paper mentions the observations made using the system, technology and resources built on the Event Horizon Telescope, as well as the details of the progress of the work.

The third paper focuses on the full details of the observations, summarizing the statistics, details of the required protocols and how the conclusions were drawn. The fourth paper describes the methodology for drawing a picture and how it was constructed. The old method of solving the process of mathematical process for image creation and the new mathematical calculation method was adopted by the instrumentalists used in EHT. It took months to test and calculate the figures obtained.The fifth paper describes the general relativistic magnetohydrodynamic (GRMHD) simulations used for fine-grained image simulation and the use of Adams ray tracing method for image acquisition and jet launching of black holes.
The sixth paper covers the system used, the substitution of the obtained statistics, the weight of the black hole, and the black hole and its time interval.

'Albert Einstein was right'

According to physicist Udayaraj Khanal, the image obtained showed that scientific confirmation of Albert Einstein was correct. Einstein noted that time and space will end when the power and the body are united in one place.

Which was later interpreted as Singularity by other scientists. In the middle part of the black hole is Singularity, where all power and body are integrated. He said it was covered by Event Horizon.

According to him, Einstein said that the interpretation of space, time and gravity was correct.
Said objects were moving toward the center of the black hole. Like Newton's theory of gravity points to 'point mass', Einstein's theory of relativity points to relativity's point mass. Einstein noted that gravity does not affect the speed of light.
Einstein said that all motions, objects and phenomena in the universe are relative and all are related to the speed of light. According to him, space and space time are not as flat as previously believed, it is rotating. This has again confirmed the geometric etymology of 'space and time' according to Einstein's theory. Earlier it was confirmed that there were gravitational waves.

What is a black hole?

The black hole is an area where the light also disappears. The light is the 'trap'. The black hole draws no object to itself and does not escape. It has the ability to pull an entire solar system into itself. It has a lot of gravitational force. Nothing can reach the event Horizon. The object that reaches there is compressed at the center of it. Udayraj Khanal Astronomer.
Astrophysicist and eighth-century scientist Staph Hawkins did a lot of research on the black hole. He dedicated his life to it. He also mentioned radiation emanating from the black hole. Called Hawking's Radiation.

As the big stars approach the end of their life cycle, they are destroyed and thus become black holes. Where there can be millions of stars, even galaxies. Its density is enormous. Many larger objects are compressed into a smaller object and the gravitational force of these objects is greater.

According to the physicist, Khanal, the substance in the published image was falling into the black hole and there was no light. According to him, the light seen in the picture is a flickering light in the black hole.

'Sun cannot become black hole':

According to the physicist Khanal, the sun could not become a black hole under any circumstances. According to him, the stars weighing 1/3 times the Sun can go into the final phase and become black holes. These stars rotate and become black holes with a high gravitational force. Similarly, objects moving in the sky may become larger and black holes.

According to him, our solar system cannot go to the black hole. The black hole larger than the solar system is millions of light years away from us, and the probability that a black hole is very close to our solar system is very low, he said. According to him it is a fantasy.

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