Black hole closest to the Earth discovered while studying double star systems, and it's just 1,000 light years away
New Delhi | Jagran News Desk: The Astrophysics geniuses of European Space Agency (ESA) at Munich’s European Space Observatory have identified the existence of a black hole barely 1,000 Light Years away from the earth. The Astronomical wonder is situated in the Constellation Telescopium and exists within a system which has been named HR 6819.
The stellar discovery has come to the fore by a chance event, unique in itself and rare in its absolute magnanimity. Scientists were observing the HR 6819 system as part of a study of double star systems, and during that a third body was identified, a black hole – closest to the earth at just 1,000 light years away.
A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.
Here in HR 6819 system, one star has been observed to be orbiting the black hole while the other orbits this pair.
“The observations needed to determine the period of 40 days had to be spread over several months. This was only possible thanks to ESO’s pioneering service-observing scheme under which observations are made by ESO staff on behalf of the scientists needing them,” says Dietrich Baade, Emeritus Astronomer at ESO and the co-author of the study was quoted as saying in the German media.
The scientists at European Space Agency (ESA) believe that many more such systems exist, and that too quite close in astronomical terms.
“We realised that another system, called LB-1, may also be such a triple, though we'd need more observations to say for sure,” Marianne Heida, a postdoctoral fellow at ESO and co-author of the paper was quoted as saying by Science Today, while adding that "LB-1 is a bit further away from Earth but still pretty close in astronomical terms, so that means that probably many more of these systems exist.”
This research was presented in the paper "A naked-eye triple system with a nonaccreting black hole in the inner binary", published in 'Astronomy & Astrophysics' journal.
Posted By: abhinav gupta