Image Credit: u3d/Shutterstock

Previously this year, astronomers, directed by Kailash Sahu of the Space Telescope Science Institute in Baltimore, Maryland, declared the discovery of the first isolated stellar-mass black hole.

The black hole is 5,000 light-years off and was found out through the power of its gravity to act as a gravitational lens, overstating the light of a background star 19,000 light-years off.

Two ground-based analyses initially spotted it, the Polish-led Optical Gravitational Lensing Experiment (OGLE), which primarily uses the Las Campanas Observatory in Chile, and the Microlensing Observations in Astrophysics (MOA) project at the Mount John University Observatory in New Zealand.

However, the following team has come forward with a distinct mass calculation. The group, directed by Casey Lam of the University of California, Berkeley, inferred that the object has a mass between 1.6 and 4.4 times the volume of the Sun. If it proves to be correct, then this could have interesting significance.

Stellar-mass black holes are the output of the supernovae of stars with masses that are 20 times greater than the Sun. On the other hand, when stars within 8 and 20 solar masses go supernovae, they are put behind a neutron star instead.

This finding is almost the tip of the iceberg. NASA’s Nancy Grace Roman Space Telescope, scheduled for launch in 2027, will poll large swathes of the Milky Way and is anticipated to identify numerous microlensing events, many of which could be black holes.

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Alice is the Chief Editor with relevant experience of three years, Alice has founded Galaxy Reporters. She has a keen interest in the field of science. She is the pillar behind the in-depth coverages of Science news. She has written several papers and high-level documentation.

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