More... here is another very good simulation of magnetic effects in a supernova
http://www.space.com/25771-big-bang-universe-supernova-simulations.html On Thu, Jul 3, 2014 at 2:11 AM, Axil Axil <janap...@gmail.com> wrote: > More... > > http://vimeo.com/27247968 > > This simulation depicts a exploding star that produces load of magnetic > field lines that can disrupt the surface of the exploding star. > > > On Thu, Jul 3, 2014 at 1:52 AM, Axil Axil <janap...@gmail.com> wrote: > >> There is an assumption that energy is transferred from the core of the >> sun to the surface via photons. This is most likely not true. >> >> Magnetic field lines may well move most of the energy from inside the sun >> to the surface where it excites the corona to very high temperatures in the >> millions of degrees. >> >> The surface of the sun is only 5505 °C. However, the temperature >> increases very steeply from 5505 degrees to a few million degrees in the >> corona, in the region 500 kilometers above the photosphere. This is the >> opposite for what would be expected for heat transfer through black body >> radiation. >> >> The same EMF heat transfer mechanism could well be true for supernova >> explosions. The surface of the exploding star could be blow off >> instantaneously through an intense pulse of EMF. >> >> >> >> On Thu, Jul 3, 2014 at 1:04 AM, Eric Walker <eric.wal...@gmail.com> >> wrote: >> >>> On Wed, Jul 2, 2014 at 2:39 PM, <mix...@bigpond.com> wrote: >>> >>> That the estimates for the time taken in the Sun vary between 10000 & >>>> 170000 >>>> years, then this tells me that such estimates are not on a very sound >>>> footing. >>>> If the difference is a factor of 17 for a constant star like the Sun, >>>> then I'm >>>> surprised that they only got if wrong by a factor of 2 for the >>>> supernova. >>>> >>> >>> Good point about the lack of precision in the estimates. I used a >>> footnote but failed to include the original reference (it was to Wikipedia >>> [1]). The Wikipedia article in turn references an article by NASA [2]. >>> >>> Eric >>> >>> >>> [1] http://en.wikipedia.org/wiki/Sun >>> [2] http://sunearthday.nasa.gov/2007/locations/ttt_sunlight.php >>> >>> >> >
