11 billion years old lengthy outburst moved by the Earth in November 2011

A lengthy blast of energy passed by the Earth in the early November, 2011, that was released by the huge black hole nearly 11 billion years ago. Scientists estimated that the huge outburst by the galaxy was nearly 10,000 times brighter than the combined luminosity of all of the stars in our Milky Way galaxy.

Astronomers and scientists used the NASA’s Fermi Gamma-ray Space Telescope and the Fermi Gamma-ray Space Telescope Fermi Gamma-ray Space Telescope, the world’s largest radio telescope, to estimate the outburst time and location. It has been estimated that a galaxy known as 4C +71.07, present in the constellation Ursa Major, is located at a distance of 10.6 billion years, and was discovered previously as a source of strong radio emission in the 1960s. Scientists found that the gamma-ray emission produced nearly 70 light years away from the galaxy’s central black hole.


Outburst presentation by 4C +71.07 (Credit: NASA/DOE/Fermi LAT Collaboration)


In the November 2011, VLBA images showed a bright knot moving outward with nearly 20 times faster than the speed of light. “Although this apparent speed was an illusion caused by actual motion almost directly toward us at 99.87 percent the speed of light, this knot was the key to determining the location where the gamma-rays were produced in the black hole’s jet,” Boston University astronomers Alan Marscher, Fermi Gamma-ray Space Telescope.

NASA’s Fermi Gamma-ray Space Telescope detected huge outbursts in 1990s, when it operated, but the galaxy remained quiet during the Fermi’s first two and a half years in orbit. “This renewed activity came after a long slumber, and that’s important because it allows us to explicitly link the gamma-ray flares to the rising emission observed by radio telescopes,” said David Thompson, a Fermi deputy project scientist at NASA’s National Science Foundation’s.

In the center of the galaxy, a huge black hole is present that is nearly 2.6 billion times heavy than the sun. When some matter falls into it, black hole ejects it at nearly the speed of light resulting in dual particle jets blasting in opposite directions. One jet moves towards the Earth. This makes the galaxy one of the brightest sources of gamma-ray in the sky.


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