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IIT Guwahati: According to scientists, X-rays coming from the black hole were seen in turn in bright and slow stages, whose duration lasts for several hundred seconds.
IIT Guwahati: Researchers at the Indian Institute of Technology (IIT) Guwahati have made a significant discovery in collaboration with UR Rao Satellite Center (ISRO) and Haifa University, Israel. He has detected the mysterious X-ray signal pattern from a black hole located about 28,000 light years away from the Earth. This discovery is based on data obtained from India’s Space Observatory Astrosat. According to scientists, X-rays coming from black hole were seen in turn in bright and slow stages, whose duration lasts for several hundred seconds. The special thing is that during high-lightened stages, a sharp X-ray was recorded about 70 times per second, while this flicker disappears completely in low stages. This discovery is being considered a big progress towards understanding the environment around the Black Hole.
Research published in reputed magazine Royal Astronomical Society
Scientists believe that when the black hole draws gas from its fellow wires, excessive heat is produced and X-ray emissions. Their study will help to understand the physical processes of black holes and their effects deeply. Research findings have been published in the Monthly Notice of the prestigious magazine Royal Astronomical Society. This achievement shows the unique abilities of Astrosat and the research ability of Indian scientists globally. According to Santbrat Das, Professor of the Department of Physics of IIT Guwahati, we have found the first evidence of a sharp X-ray flicker to be repeated about 70 times per second during the high-shine stages of the source. Interestingly, this strong flicker disappears during low-glowing stages. This new understanding is possible by powerful, unique observation capabilities of Astrosat.
Faster flickering signal
Researchers noticed that X-rays from the targeted black hole were coming in turn between two different stages. One bright and the other is dim. When the flicker is the most prevalent during more bright stages, the corona becomes more dense and quite heated. In contrast, during less bright stages, it spreads and cool, causing the flicker disappear. This obvious correlation indicates dense, oscillator corona as a possible source of these fast signals. However each stage lasted for several hundred seconds and was repeated in a regular pattern. A fast twinkling signal appeared only during the bright phase. This discovery shows that corona around the black hole is not a stable structure and changes its size and energy depending on the flow of gases in the black hole.
Flicker is associated with changes in corona
Professor Das said that this research provides highly gravitational intensity and deep understanding of high temperatures near the edge of Black Hole. These conclusions also make our model better to develop black hole, free energy and influence our surroundings. This also indicates how black holes can affect the development of the entire galaxies. ISRO’s URSC Anuj Nandi said that our study provides direct evidence of the origin of X-ray twinkling. We have found that this flicker is associated with changes in corona around the black hole.
