The discussion centers on the concepts of abundance and mass spectrum in the context of primordial black holes (PBHs). Participants seek clarification on these terms and their implications in the study of PBHs.
Participants express differing levels of understanding regarding the calculation of abundance and its representation, indicating that the discussion remains unresolved with multiple viewpoints presented.
The discussion highlights potential limitations in understanding the mathematical representation of abundance and the need for additional context to clarify the concepts further.
Yes, I know that abundance is how many there are, but it’s calculated as the integral of the Gaussian probability density and this isn’t a number of black holes. Where I am wrongkimbyd said:Abundance is how many there are, and mass spectrum is a measure of how abundant black holes of different masses are.
The result should be either a number or mass density. But you'll need to provide more context if you want a good answer to your question.koulbichok said:Yes, I know that abundance is how many there are, but it’s calculated as the integral of the Gaussian probability density and this isn’t a number of black holes. Where I am wrong