"magnetar" flash of Dec 27th

From: Juan Pederson (b_at_jp.met)
Date: 03/29/05 

Date: Tue, 29 Mar 2005 04:38:20 GMT

I've just read about this unusual star and the gigantic pulse it emitted,
with the strength of a weak dental x-ray outside the atmosphere. I have two
questions: 1) How would the "flash" have appeared on the ground had it
encountered Earth's night side and 2) even though the article sort of
downplays radiation exposure levels, what would the radiation levels be say
100 l.y. away from this star and would the radiation have penetrated an
atmosphere on a planet like ours at that 100 l.y. distance?

Juan

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