Home Science Natural Blast of Energy and Radiation –Center of Milky Way Exploded

Natural Blast of Energy and Radiation –Center of Milky Way Exploded

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According to the finding, researchers had evidence of cataclysmic flare and its impact which occurred 200,000 light-years ago. A cone-shaped burst of radiation through both the poles of the galaxy into deep space was observed, 3.5 million years ago, a natural beam of energy from the supermassive black hole at the center of Milky Way.

Findings are resulted from the research conducted by the team of scientists led by Professor Joss Bland-Hawthorn from Australia’s ARC Centre of Excellence for All-Sky Astrophysics in 3 Dimensions (ASTRO 3D) and will be soon published in The Astrophysical Journal.

Image Credit: SciTech Daily

Two enormous ‘ionization cones’ that sliced through Milky Way they are described as, beginning with a relatively smaller diameter close to a black hole, expanding vastly when exited from Galaxy, the phenomenon is known as Seyfert Flare.

“This is a dramatic event that happened a few million years ago in the Milky Way’s history,” says Professor Lisa Kewley, Director of ASTRO 3D.

“A massive blast of energy and radiation came right out of the galactic center and into the surrounding material. This shows that the center of the Milky Way is a much more dynamic place than we had previously thought.” — Professor Lisa Kewley

“The flare must have been a bit like a lighthouse beam,” says Professor Bland-Hawthorn, who is also at the University of Sydney.

“Imagine darkness, and then someone switches on a lighthouse beacon for a brief period of time.”

Researchers calculated the time period with when the help of data gathered by Hubble Space Telescope which is little more than three million years ago.

“This is a dramatic event that happened a few million years ago in the Milky Way’s history,” says Professor Lisa Kewley, Director of ASTRO 3D.

“A massive blast of energy and radiation came right out of the galactic center and into the surrounding material. This shows that the center of the Milky Way is a much more dynamic place than we had previously thought. It is lucky we’re not residing there!”

Blast lasted for 300,000 years only as per researchers ALL-Sky which is significantly shorter term as per the galactic period.

The research was jointly conducted by, professor Bland-Hawthorn, his colleagues from the Australia National University and the University of Sydney, and, in the US, the University of North Carolina, University of Colorado and the Space Telescope Science Institute in Baltimore.

According to the Australian-US research team, the explosion was too huge, that have been triggered by anything other than nuclear activity associated with a black hole, known as Sagittarius A, or Sgr A*, which is about 4.2 million times more massive than the Sun.

The research paper was also published in 2013, led by Professor Bland-Hawthorn, related to the supermassive explosion beginning in the center of Milky Way.

“These results dramatically change our understanding of the Milky Way,” says co-author Magda Guglielmo from the University of Sydney.

“We always thought about our Galaxy as an inactive galaxy, with a not so bright center. These new results instead open the possibility of a complete reinterpretation of its evolution and nature.

“The flare event that occurred three million years ago was so powerful that it had consequences on the surrounding of our Galaxy. We are the witness to the awakening of the sleeping beauty.”

Though SgrA* is a prime suspect as per the latest work, still there is still a lot of work to be done to find. How black holes evolve, influence and interact with galaxies, they conclude, “is an outstanding problem in astrophysics.”

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