There is already a post here concerning a blackbody curve in visible light. The answer was helpful in that it stated that an object emitting visible light would emit some higher energy photons in x-ray and gamma.
But, what about a cold object at 288K (OC)? Does such a cold object also radiate x-ray and gamma? If so, how does it generate internal energy to produce those?
This is all in relation to hypothetical black bodies. Does all this apply to real objects?