MA Emilio Schmidt/Lothars Notes: Difference between revisions

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= Pressure Truncation =  
= Pressure Truncation =  


While it's true that space is not vacuum, in which sense and to what degree is it more accurate to ignore ''all'' mass beyond \(R_\text{max}\) (being defined via \(\rho(R_\text{max})=\rho_\text{background}\)) instead of letting the density vanish continuously and thus ignoring ''less'' of the mass?
While it's true that space is not vacuum, in which sense and to what degree is it more accurate to ignore ''all'' mass beyond \(R_\text{max}\) (being defined via \(\rho(R_\text{max})=\rho_\text{background}\)) instead of letting the density vanish continuously and thus ignoring ''less'' of the mass? Is the background pressure (or density) supposed to have an ''effect'' or is it just a means to an end, namely to define a finite \(R_\text{max}\)?

Latest revision as of 08:57, 1 June 2026

Pressure Truncation

While it's true that space is not vacuum, in which sense and to what degree is it more accurate to ignore all mass beyond \(R_\text{max}\) (being defined via \(\rho(R_\text{max})=\rho_\text{background}\)) instead of letting the density vanish continuously and thus ignoring less of the mass? Is the background pressure (or density) supposed to have an effect or is it just a means to an end, namely to define a finite \(R_\text{max}\)?