The temperature defined for this process varies inversely with mass and the evaporation time as mass cubed, so only those objects smaller than a mountain will have disappeared since the Big Bang.  
The temperature defined for this process varies inversely with mass and the evaporation time as mass cubed, so only those objects smaller than a mountain will have disappeared since the Big Bang.  In it, pair production near an event horizon spurs the creation of a particle, causing an energy loss from a black hole.  For ten points, what radiation is eponymously named for a British cosmologist?
The temperature defined for this process varies inversely with mass and the evaporation time as mass cubed, so only those objects smaller than a mountain will have disappeared since the Big Bang.  
Hawking radiation