Candlepower

[james_davis_nicoll]

Yesterday, astronomers spotted a gamma ray burster that was bright enough to be seen with the naked eye. It was over seven billion light-years away.


Nicked from theweaselking

Comments

[phanatic.livejournal.com]

So it was redshifted enough to bring gammas down into the visible range?

[trogon.livejournal.com]

Nope. GRBs emit a lot of light at wavelengths other than gamma rays. The counterparts at other wavelengths actually last a lot longer than the very brief burst of gamma rays, and are how we know most of what we know about GRBs.