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Artist's conception of a white dwarf, right, accreting hydrogen from the Roche lobe of its larger companion star A nova (pl. novae or novas) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star (hence the name "nova", Latin for "new") that slowly fades over weeks or months.
Luminous red nova, an explosion thought to be caused by stellar collision Solar flares are a minor type of stellar explosion [ 1 ] Tidal disruption event , the pulling apart of a star by tidal forces
The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova.It is located about 6,500 light-years from the Earth. [1]A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (roughly less than 10 to 300 parsecs (pc) [30 to 1000 light-years] away [2]) to have noticeable effects on Earth's biosphere.
In the case of a nova, the infalling matter causes a hydrogen fusion surface explosion that does not disrupt the star. [ 13 ] Type Ia supernovae differ from Type II supernovae , which are caused by the cataclysmic explosion of the outer layers of a massive star as its core collapses, powered by release of gravitational potential energy via ...
This is one scenario for producing high-luminosity supernovae and is thought to be the cause of type Ic hypernovae and long-duration gamma-ray bursts. [179] If the relativistic jets are too brief and fail to penetrate the stellar envelope then a low-luminosity gamma-ray burst may be produced and the supernova may be sub-luminous. [180]
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HALIFAX, Nova Scotia (AP) — Wildfires in Canada’s Atlantic coast province of Nova Scotia have caused thousands to evacuate. The Halifax Regional Municipality said late Monday that preliminary ...
Carbon detonation or carbon deflagration is the violent reignition of thermonuclear fusion in a white dwarf star that was previously slowly cooling. It involves a runaway thermonuclear process which spreads through the white dwarf in a matter of seconds, producing a type Ia supernova which releases an immense amount of energy as the star is blown apart.