Gamma Rays...and The Composition Of The Moon |
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Gamma Rays...and The Composition Of The Moon |
| Guest_AlexBlackwell_* |
 Nov 23 2005, 01:40 AM
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Gamma Rays, Meteorites, Lunar Samples, and the Composition of the Moon
--- Lunar meteorites provide ground truth to help calibrate orbital geochemical data, allowing an estimate of the composition of the entire Moon. Written by G. Jeffrey Taylor Hawai'i Institute of Geophysics and Planetology posted November 22, 2005 |
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Apr 11 2006, 02:45 PM
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 Senior Member  Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Astrophysics, abstract
astro-ph/0604199 From: Oscar St{\aa}l [view email] Date: Mon, 10 Apr 2006 17:20:57 GMT (117kb) Satellite Detection of Radio Pulses from Ultrahigh Energy Neutrinos Interacting with the Moon Authors: O. Stål, J. Bergman, B. Thidé, L. K. S. Daldorff, G. Ingelman Comments: 4 pages, 3 figures, uses RevTeX 4 The Moon provides a huge effective detector volume for ultrahigh energy cosmic neutrinos, which generate coherent radio pulses in the lunar surface layer due to the Askaryan effect. We report systematic Monte Carlo simulations which show that radio instruments on board a Moon-orbiting satellite can detect Askaryan pulses from neutrinos with energies above 10^{19} eV, i.e. near and above the interesting GZK limit, at the very low fluxes predicted in different scenarios. http://arxiv.org/abs/astro-ph/0604199 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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