Nature of radiation emanating from a body v/s frequency

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petrushkagoogol
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Does the nature of radiation emitted by dense bodies like black holes differ in frequency from radiation emitted by regular stars like our Sun ? I believe that the former radiates more x-rays and high frequencies rather than the latter which radiates mainly uv, visible and infrared ranges. Is this so ?
 
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petrushkagoogol said:
Does the nature of radiation emitted by dense bodies like black holes differ in frequency from radiation emitted by regular stars like our Sun ? I believe that the former radiates more x-rays and high frequencies rather than the latter which radiates mainly uv, visible and infrared ranges. Is this so ?
Black holes do not radiate in the way you seem to think. Deducing the frequency of Hawking Radiation apparently is quite complex.
 
petrushkagoogol said:
Does the nature of radiation emitted by dense bodies like black holes differ in frequency from radiation emitted by regular stars like our Sun ? I believe that the former radiates more x-rays and high frequencies rather than the latter which radiates mainly uv, visible and infrared ranges. Is this so ?

phinds said:
Black holes do not radiate in the way you seem to think.

Phinds is correct
... maybe you were thinking of the X-rays that are radiated by the material falling towards the black hole, prior to it crossing the event horizon
do some googling on Cygnus X-1 for one of the earlier black hole X-ray sources identifiedDave