thumb|Hypernova Eksplosionen; Eta Carinae
En Hypernova kan udsende en gammaglimt med en ca. 100 gange så høj effekt som en supernova i forbindelse med eksplosionen. Hypernova-eksplosionen, der nåede os den 29. marts 2003, udsendte en effekt på 1 million gange, effekten fra vores galakses samlede stjerner.
Den 19. marts 2008 nåede en hypernova-gammaglimt (GRB 080319B) os fra en afstand af omkring 7,5 milliarder lysår – hvilket er mere end halvvejs gennem universet. Det blev observeret via Swift-teleskopet. NASA/Goddard Space Flight Center (2008, March 21). Stunning Gamma Ray Burst Explosion Detected Halfway Across Universe. ScienceDaily. Retrieved March 22, 2008 Citat: "...A powerful stellar explosion detected March 19 by NASA's Swift satellite has shattered the record for the most distant object that could be seen with the naked eye...Several ground-based telescopes saw the afterglow brighten to visual magnitudes between 5 and 6 in the logarithmic magnitude scale used by astronomers...Later that evening, the Very Large Telescope in Chile and the Hobby-Eberly Telescope in Texas measured the burst's redshift at 0.94...GRB 080319B's optical afterglow was 2.5 million times more luminous than the most luminous supernova ever recorded..."
Referencer
Eksterne henvisninger Sciencedaily, 2003-04-07, It's A Nova … It's A Supernova … It's A HYPERNOVA 28 September 2000, Astronomy Bizarre: What the Heck is a 'Hypernova' NASA, 20 may 99: Brighter than an Exploding Star, It's a Hypernova! Space.com, 07 March 2000, Possible Hypernova Could Affect Earth Citat: "...What causes all this strange behavior in Eta Carinae is very simple: It’s enormous, more than 100 times the mass of our sun....at 7,500 light-years it’s still close enough to do some damage. However, the likely damage is not to humans directly, but to satellites and the upper atmosphere..." NASA, October 21, 1998: When stars go hyper Different kind of nova ends not with a whimper, but with a bang
Kategori:Stjernetyper