Supernova

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Multiwavelength X-ray, infrared, an optical compilation image o Kepler's supernova remnant, SN 1604.

A supernova (abbreviatit SN, plural SNe efter "supernovae") is a stellar explosion that is mair energetic nor a nova. It is pronoonced /ˌspəˈnvə/ wi the plural supernovae /ˌspəˈnv/ or supernovas. Supernovae are extremely luminous an cause a burst o radiation that eften briefly ootshines an entire galaxy, afore fading frae view ower several weeks or months. During this interval a supernova can radiate as much energy as the Sun is expectit tae emit ower its entire life span.[1] The explosion expels much or all of a star's material[2] at a velocity o up tae 30,000 km/s (10% o the speed o licht), drivin a shock wave[3] intae he surroondin interstellar medium. This shock wave sweeps up an expanding shell o gas an dust cried a supernova remnant.

References[eedit | eedit soorce]

  1. Giacobbe, F. W. (2005). "How a Type II Supernova Explodes". Electronic Journal of Theoretical Physics 2 (6): 30–38. Bibcode:2005EJTP....2f..30G. 
  2. "Introduction to Supernova Remnants". NASA/GSFC. 2007-10-04. Retrieved 2011-03-15. 
  3. Schawinski, K. et al. (2008). "Supernova Shock Breakout from a Red Supergiant". Science 321 (5886): 223–226. arXiv:0803.3596. Bibcode:2008Sci...321..223S. doi:10.1126/science.1160456. PMID 18556514.  |first10= missing |last10= in Authors list (help); |first11= missing |last11= in Authors list (help); |first12= missing |last12= in Authors list (help); |first13= missing |last13= in Authors list (help); |first14= missing |last14= in Authors list (help); |first15= missing |last15= in Authors list (help); |first16= missing |last16= in Authors list (help); |first17= missing |last17= in Authors list (help); |first18= missing |last18= in Authors list (help); |first19= missing |last19= in Authors list (help); |first20= missing |last20= in Authors list (help); |first21= missing |last21= in Authors list (help); |first22= missing |last22= in Authors list (help); |first23= missing |last23= in Authors list (help); |first24= missing |last24= in Authors list (help)