Pune telescope helps in mapping the distribution of atomic Hydrogen gas from the host galaxy of a F
- Astronomers of National Centre of Radio Astrophysics (NCRA-TIFR) in Pune and the University of California in the U.S. have used the Giant Metrewave Radio Telescope (GMRT) to map the distribution of atomic hydrogen gas from the host galaxy of a fast radio burst (FRB) for the first time.
Fast radio bursts
- These are extremely bright radio pulses from distant galaxies
- These last for only a few milliseconds
- They were first detected fifteen years ago and over a thousand have been found till now
- But astronomical objects which can produce so much energy in so little time are still undiscovered
About recent findings
- This exercise has revealed exciting clues about the origin of the burst.
- The GMRT results indicate the FRB host galaxy has undergone a recent merger
- The FRB progenitor is most likely a massive star formed due to this merger event.
- This is the first case of direct evidence for a recent merger in an FRB host which is a major step towards understanding the progenitors of FRBs
About FRB (FRB20180916B)
- It was the target fast radio burst (FRB) of the astronomers
- It is one of the closest known FRBs and an ideal candidate to study the local burst environment.
- It produces repeated, very short bursts
- The bursts have been found to arise in the outskirts of a spiral galaxy half a billion light-years away.
- It was traced by the Canadian Hydrogen Intensity Mapping experiment (CHIME)