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In Depth: Indian Astronomers Contribute To Discovery Of Shortest Gamma-Ray Burst Ever Recorded From A Dying Star


In Depth: Indian Astronomers Contribute To Discovery Of Shortest Gamma-Ray Burst Ever Recorded From A Dying Star
by Karan Kamble - Jul 29, 2021 12:30 AM
Gamma-ray burst illustration (Wikimedia Commons)
Snapshot
Shooting towards Earth for as long as nearly half the present age of the universe, the burst or signal is said to have beeped for less than a second — short, yet enough to make its powerful presence felt.
The detection challenges astronomers current understanding of gamma-ray bursts and where they come from.
A whisper of an extraordinary cosmic event reached our Earthly ear last year, leading the qualified on a quest to decipher it. Now, eleven months later, we learn about the cosmic catch. ....

Shashi Bhushan Pandey , Las Vegas , National Centre For Radio Astrophysics , Indian Institute Of Technology Bombay , Zhang At Nanjing University , University Of Nevada , Aryabhatta Research Institute Of Observational Sciences , Tata Institute Of Fundamental Research , Centre For Astronomy , Gamma Ray Space Telescope , Nanjing University , Nature Astronomy , Aryabhatta Research Institute , Observational Sciences , Inter University Centre , National Centre , Radio Astrophysics , Tata Institute , Fundamental Research , Indian Institute , Technology Bombay , ஷாஷி பூஷன் பாண்டே , லாஸ் வேகாஸ் , தேசிய மையம் க்கு வானொலி வானியற்பியல் , இந்தியன் நிறுவனம் ஆஃப் தொழில்நுட்பம் குண்டு , பல்கலைக்கழகம் ஆஃப் நெவாடா ,

This star's death billions of years ago is challenging what we know about supernovae


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Bengaluru: Once upon a time, billions of years ago, a star died. It let out a pulse of extremely high energy a gamma ray burst (GRB), as the astronomers call it that was detected on Earth just last year. Lasting less than a second, it was the shortest of its kind ever observed. 
And it appears to have challenged some existing models that govern the way these bursts are seen.     
Astronomers looking through NASA’s Fermi Gamma-ray Space Telescope observed a pulse of extremely high energy in the form of a GRB on 26 August 2020. The GRB, the astronomers say, is the shortest known to have been caused by the death of a star.  ....

La Palma , New Mexico , United States , Gran Telescopio Canarias , Sunanda Ranjan , Shreya Anand , Ray Astrophysics Laboratory , Zhang At Nanjing University , Interplanetary Network , European Space Agency International Gamma , Gamma Ray Space Telescope , Bin Zhang , Nanjing University , Nature Astronomy , European Space Agency , Gamma Ray Astrophysics Laboratory , Zwicky Transient Facility , Palomar Observatory , Gehrels Swift Observatory , National Radio Astronomy Observatory , Karl Jansky Very Large Array , Gemini North , லா பால்மா , புதியது மெக்ஸிகோ , ஒன்றுபட்டது மாநிலங்களில் , கிரான் தொலைநோக்கி கனாரியாக்கள் ,

Indian astronomers part of Nasa team detect radiation from death of a star over 5 billion years ago