A Shocking Space Movie
MagnetarJones writes "Multiple observations made over several months with the Chandra X-ray Observatory and the Hubble Space Telescope captured the spectacle of matter and antimatter propelled to nearly the speed of light by the Crab pulsar, a rapidly rotating neutron star the size of Manhattan. "Through this movie, the Crab Nebula has come to life," says Jeff Hester of Arizona State University."
for common units?
Maybe because they're moving at identical speeds in opposite directions under the influence of a magnetic field?
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I'm not really sure. How do they know the magnetic configurstion around that N.S. ? and besides, these waves are supposed, AFAI understand, to be composed of electron-positron plasmas, I sincerely doubt they have the resolution required to plot single particles' trajectories
My guess is that such a claim is probably based on spectroscopy :
1) take a strong wavelength
2) substruct (probably do some kind of reverse integral transform) doppler,
3) get e+-e- anhilation energy
4) 1+2+3 => e+-e- plasma portion.
I can't reasonably think on any other plausible way, but then again, I'll be glad to find out
Working for necessity's mother.