John Clark, <jonkc@worldnet.att.net>, writes:
> >Billy
> >Yes, I do. If you think I'm wrong, show me the error in my calculations.
>
> I don't need to check the calculations of your theory, I know you're wrong
> because it doesn't fit the facts. As I already said, the 1987 supernova event
> produced about 20 neutrinos in one second that were detectable in one of
> our primitive neutrino observatories, and it was not close, it was in another
> galaxy.
Earlier Billy wrote:
: A typical supernova would have a total energy output of something like : 10^44 ergs. Applying a little basic geometry, that gives us an energy : density of 2x10^10 ergs per square meter at a distance of 100 million : kilometers, which will certainly do a lot of damage. However, at a : distance of 1 light-year (9x10^12 kilometers), the energy density drops to : less than one erg per square meter.
I think there may be a math error here. The area of a sphere 1 light-year in diameter is is 4 pi r^2 or 10^33 square meters. If energy of 10^44 ergs is spread out over that area it implies 10^11 ergs per square meter, not < 1 erg per square meter.
Also, in a blurb about gamma ray bursters at http://www.physics.mines.edu/news_and_events/dingusabs.htm I find:
} Gamma-ray bursts have recently been confirmed as the most energetic } explosions ever observed with ~10^53 ergs of energy (100 times the } energy of a supernova) and released predominantly in gamma-rays of } energy >50 keV.
If 10^53 ergs is 100 times the energy of a supernova then a supernova would put out 10^51 ergs, greater than Billy's starting figure by a factor of 10 million, and leading to an estimate of 10^18 ergs per square meter at 1 light-year.
Hal