Hubble Observations of Supernova 1987A 19942006

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=oxGajNoPz8c

This movie shows the time-evolution of the shock wave that is created when the core of a massive star collapses to a proto-neutron star. The shock does not immediately explode the star but stalls (because the outer parts of the star [not shown in the movie] are excerting ram pressure on it). The shock is revived within a tenth of a second or so, most likely, by heating by neutrinos emitted from the proto-neutron star. The different colors correspond to gas of different temperature (the variable shown is specific entropy , which is closely related to temperature). Blue corresponds to the coldest gas, green is hotter gas, and yellow and red are the hottest gas. • The box-like features visible at the beginning of the movie are an artifact of the simulation method that was used. They appear when the newborn shock crosses a grid boundary of the computational grid. • • This movie was generated by the Simulating eXtreme Spacetimes (SXS) project. http://www.black-holes.org. The simulation work was led by Christian Ott at Caltech and the movie was rendered by Steve Drasco at Cal Poly San Luis Obsipo. • This movie is licensed under the Creative Commons 4.0 Attribution International License, http://creativecommons.org/licenses/b...

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