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GRB 190114C

GRB 190114C
The Hubble Space Telescope caught the fading afterglow of GRB 190114C and its home galaxy on February 11 and March 12, 2019. The difference between these images reveals a faint, short-lived glow (center of the green circle) located about 800 light-years from the galaxy’s core. Blue colors beyond the core signal the presence of hot, young stars, indicating that this is a spiral galaxy somewhat similar to our own. The source of the burst is located about 4.5 billion light-years away in the direction of the constellation Fornax.
Event typeGamma-ray burst
Datec. 4.5 billion years ago
(discovered January 2019)
Right ascension03h 38m 1.63s[1]
Declination−26° 56′ 48.1″[1]
Distancec. 4.5 billion ly
Redshift0.4245 ±0.0005
Other designationsGRB 190114C
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[edit on Wikidata]

GRB 190114C was an extreme gamma-ray burst explosion from a galaxy 4.5 billion light years away (z=0.4245;[2] magnitude=15.60est[3]) near the Fornax constellation,[4][5][6] that was initially detected in January 2019.[3][7] The afterglow light emitted soon after the burst was found to be tera-electron volt radiation from inverse Compton emission, identified for the first time.[8] According to the astronomers, "We observed a huge range of frequencies in the electromagnetic radiation afterglow of GRB 190114C. It is the most extensive to date for a gamma-ray burst."[8] Also, according to other astronomers, "light detected from the object had the highest energy ever observed for a GRB: 1 Tera electron volt (TeV) -- about one trillion times as much energy per photon as visible light";[4] another source stated, "the brightest light ever seen from Earth [to date].".[9]

  1. ^ a b Staff (2019). "SIMBAD - GRB 190114C". SIMBAD. Retrieved 20 November 2019.
  2. ^ Staff (2019). "GRB 190114C". University of Chicago. Retrieved 24 November 2019.
  3. ^ a b Palmer, David (14 January 2019). "GRB 190114C: Swift detection of a very bright burst with a bright optical counterpart". Goddard Space Flight Center. Retrieved 20 November 2019.
  4. ^ a b Cite error: The named reference EA-20191120 was invoked but never defined (see the help page).
  5. ^ Byrd, Deborah (24 November 2019). "Epic cosmic explosion detected via faster-than-light particles - Space-based observatories detected a violent explosion in a galaxy billions of light-years away. It became the brightest source of high-energy cosmic gamma rays seen so far. Specialized Earth-based telescopes detected it via faster-than-light particles cascading through Earth's atmosphere". Earth & Sky. Retrieved 24 November 2019.
  6. ^ Zhang, Ben (20 November 2019). "Extreme emission seen from γ-ray bursts - Cosmic explosions called γ-ray bursts are the most energetic bursting events in the Universe. Observations of extremely high-energy emission from two γ-ray bursts provide a new way to study these gigantic explosions". Nature. 575 (7783): 448–449. arXiv:1911.09862. doi:10.1038/d41586-019-03503-6. PMID 31748718.
  7. ^ Mirzoyan, Razmik (15 January 2019). "First time detection of a GRB at sub-TeV energies; MAGIC detects the GRB 190114C". The Astronomer's Telegram. Retrieved 20 November 2019.
  8. ^ a b Cite error: The named reference EA-20191122 was invoked but never defined (see the help page).
  9. ^ Wood, Tom (22 November 2019). "Scientists Detect Biggest Explosion In The Universe Since The Big Bang". LADbible. Retrieved 23 November 2019.

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