Amazing discovery! Event Horizon Telescope captures amazing gas bubble | Tech News

Amazing discovery! Event Horizon Telescope captures amazing gas bubble

Astronomers have discovered a hot gas bubble swirling around a supermassive black hole known as the Sagittarius A*.

By: HT TECH
| Updated on: Oct 14 2022, 22:09 IST
Black Holes In Pics: Some fun facts about them from NASA
Sagittarius A*
1/5 Did you know there are two kinds of black holes? Yes, you read that right! According to NASA, black holes can be differentiated into two depending on their mass. The first is a Stellar Black Hole which is formed from a single star. It can be three times the size of our Sun. The other is a Supermassive Black Hole which forms due to merging of other black holes. It is a massive black hole which resides in the center of galaxies and is capable of engulfing other stars. (NASA)
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2/5 How many black holes are there? Well, according to NASA, there are hundreds of black holes in space. However, scientists assume that black holes are present in thousands. (NASA)
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3/5 Any matter that is consumed by black holes is eventually crushed into one single point, which is called Singularity. According to NASA, a singularity, located at the center of the black hole, is vanishingly small, yet has an infinite density. (NASA)
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4/5 Is there a supermassive black hole in our galaxy? Yes, there is! Located nearly 26,000 light years away at the center of our Milky Way Galaxy is Sagittarius A*, the supermassive black hole which could potentially one day swallow the whole Milky Way Galaxy. (NASA)
Sagittarius A*
5/5 Can our Sun become a black hole? The answer is no. According to NASA, a black hole forms from a star that is nearly 15 to 20 times the size of our Sun. So, you need not worry about being swallowed by our own Sun. So, when our Sun eventually runs out of fuel, it will become a white dwarf and expand in size, turning into a red giant. (Pixabay)
Sagittarius A*
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Check out this amazing swirling gas bubble around a supermassive black hole! (Bloomberg)

Did you know that there is a black hole located at the center of the Milky Way Galaxy? Nearly 26,000 light years away at the center of our Milky Way Galaxy is Sagittarius A*, a supermassive black hole which could potentially one day swallow the whole Milky Way Galaxy. The first image of this supermassive black hole was captured by the Event Horizon Telescope in May. The supermassive black hole has huge amounts of gas around it.

Now, astronomers have spotted a hot gas bubble swirling around the supermassive black hole. The discovery was made with the help of the Atacama Large Millimeter/submillimeter Array (ALMA) located in the Antofagasta Region of the Atacama Desert in Chile. This discovery was published in the Astronomy & Astrophysics journal by Maciek Wielgus of the Max Planck Institute for Radio Astronomy in Bonn, Germany, who led this study.

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The astronomers spotted the hot gas bubble shortly after a burst of X-ray flare was emitted from the center of the Milky Way Galaxy, as observed by NASA's Chandra Space Telescope. Speaking about this discovery, Wielgus said in the official press release, ““What is really new and interesting is that such flares were so far only clearly present in X-ray and infrared observations of Sagittarius A*. Here we see for the first time a very strong indication that orbiting hot spots are also present in radio observations.”

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According to the study, the X-ray flare burst is associated with a phenomenon called ‘Hot Spots'. Jesse Vos, a PhD student at Radboud University, the Netherlands, who was also involved in this study said, ““Perhaps these hot spots detected at infrared wavelengths are a manifestation of the same physical phenomenon: as infrared-emitting hot spots cool down, they become visible at longer wavelengths, like the ones observed by ALMA and the EHT.”

This discovery confirms the observations made by previous studies conducted by the GRAVITY instrument at European Southern Observatory's Very Large Telescope (VLT). The data collected by both the GRAVITY and the ALMA confirms that flare originates from a hot gas bubble present at the center of the Milky Way Galaxy.

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First Published Date: 14 Oct, 22:09 IST
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