Study tracks new source for radio emissions from black hole core
- October 5, 2022
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Study tracks new source for radio emissions from black hole core-
Subject: Science and Technology
Context:
Black hole–
- Black holes are the exotic objects that are powered by the accretion of matter from the surroundings at extremely high velocities.
- In reality, nothing, including light, can avoid the fatal attraction of a black hole due to its super strong gravity.
- Black holes of different masses can be found in the Universe, ranging from a few solar masses in Black Hole X-ray Binaries (BH-XRBs) to a few billion solar masses in Active Galactic Nuclei (AGNs).
- A fraction of these astrophysical objects emit powerful radio emission from the center.
- However, the origin of this core radio emission is still unclear.
- Several sources of core radio emissions have previously been proposed to power the jets in astrophysical sources like the rotational energy of black holes.
What the new study has found-
- A group of Indian astronomers has claimed to have found clues of possible sources for origin of radio emissions emerging from central regions of black holes.
- Though many previous studies have linked multiple sources for the emissions, this new study has found energy from the accretion disk to be powering the radio signals rather than the rotational energy from the spin of the black holes, as previously believed.
- The findings of this joint-study, conducted by researchers from Aryabhatta Research Institute of Observational Sciences, Indian Institute of Astrophysics , IITs-Guwahati and Indore along with Xiamen University, China.