AGNs as a new standard candle?
Tuesday, September 27, 2011 - 10:01
in Astronomy & Space
Nope. A standard candle isnt the same red, green, blue, yellow and omni-present pink wax sticks that decorate your every day birthday cake. Until now a standard candle meant a Cepheid variable star or more recently a Type 1a supernova. But something new happens almost every day in astronomy, doesnt it? So start thinking about how an active galactic nucleus could be used to determine distance...
