Summary
GRB 080916C is a gamma-ray burst (GRB) that was recorded on September 16, 2008, in the Carina constellation and detected by NASA's Fermi Gamma-ray Space Telescope. It was the most powerful gamma-ray burst ever recorded, until GRB 221009A was recorded in 2022. The explosion had the energy of approximately 9000 type Ia supernovae if the emission was isotropically emitted, and the gas jets emitting the initial gamma rays moved at a minimum velocity of approximately 299,792,158 m/s (99.9999% the speed of light), making this blast one of the most extreme recorded.[1][2][3]
 Swift spacecraft's observation of GRB 080916C | |
| Event type | Gamma-ray burst  |
|---|---|
| Constellation | Carina |
| Right ascension | 07h 59m 23.24s |
| Declination | −56° 38′ 16.8″ |
| Distance | 12,200,000,000 ly (3.7×109 pc) |
| Total energy output | 8.8×1054 ergs |
| Other designations | Fermi bn080916009 |
 Related media on Commons | |
The 16.5-second delay for the highest-energy gamma ray observed in this burst is consistent with some theories of quantum gravity, which state that all forms of light may not travel through space at the same speed. Very-high-energy gamma rays may be slowed down as they propagate through the quantum turbulence of space-time.[4][5]
The explosion took place 12.2 billion light-years (light travel distance) away. That means it occurred 12.2 billion years ago—when the universe was only about 1.5 billion years old. The burst lasted for 23 minutes, almost 700 times as long as the two-second average for high energy GRBs.[6] Follow-up observations were made 32 hours after the blast using the Gamma-Ray Burst Optical/Near-Infrared Detector (GROND) on the 2.2 metre telescope at the European Southern Observatory in La Silla, Chile, allowing astronomers to pinpoint the blast's distance to 12.2 billion light years.[7] The object's redshift is z = 4.35.[citation needed]
If all that energy from GRB 080916C could be captured and converted into usable electricity at 100% efficiency, it would produce enough electricity to supply the entire planet Earth with 13.5 octillion years of power (according to electricity consumption of 2008).[citation needed]
See also edit
- GRB 080319B
- GRB 160625B a 5×1054 erg gamma-ray burst
References edit
- ^ Abdo, A. A.; Ackermann, M.; Arimoto, M.; Asano, K.; Atwood, W. B.; Axelsson, M.; Baldini, L.; Ballet, J.; Band, D. L.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Battelino, M.; Baughman, B. M.; Bechtol, K. (2009-03-27). "Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C". Science. 323 (5922): 1688–1693. doi:10.1126/science.1169101. ISSN 0036-8075.
- ^ Most Extreme Gamma-ray Blast Ever, Seen By Fermi Gamma-ray Space Telescope, Science Daily, February 19, 2009
- ^ Huge gamma-ray blast spotted 12.2 bln light-years from earth, AFP, February 19, 2009
- ^ Most Powerful Gamma-Ray Burst May Point to New Physics, Sky and Telescope, February 19, 2009
- ^ New telescope finds strange behavior in gamma-ray bursts, and also documents the most energetic burst known, Science News, February 20, 2009
- ^ "A Fireball at the edge of the Universe". irfu.cea.fr. 2009-02-18. Retrieved 2023-09-29.
- ^ Fermi’s record breaking gamma-ray burst Archived 2017-10-21 at the Wayback Machine, Astronomy Now, February 20, 2009
External links edit
- Telescope spies cataclysmic blast, BBC News, February 20, 2009
- NASA's Fermi Telescope Sees Most Extreme Gamma-ray Blast Yet, NASA, February 19, 2009
- Record Cosmic Explosion Brightens Student's First Day, Newswise, February 19, 2009