July 26th, 2019 - CIB Lensing: Kappa Power Spectra Ratio (by Mass Cut) (Selected Redshifts)

In this post, I have four plots showing the ratios [math]\displaystyle{  \frac{C_{\ell}^{\text{mass cut}}}{C_{\ell}^{\text{total}}}  }[/math] for selected shells, with "total" being the kappa generated with the whole catalog (no mass cut). While the ratio decreases noticeably at low [math]\displaystyle{  \ell  }[/math] as higher mass halos are left out, this effect is more subtle for [math]\displaystyle{  1000 \lt  \ell \lt  5000  }[/math]. In other words, the contribution of lower mass halos ([math]\displaystyle{  10^{13} M_{\odot}  }[/math]) is large at low and very high [math]\displaystyle{  \ell  }[/math], while it is significantly smaller at mid to high [math]\displaystyle{  \ell  }[/math].

(redshift 0.973 -> 3200Mpcs comoving distance or shell 8, redshift 2.029 -> 5200Mpcs comoving distance or shell 13, redshift 2.975 -> 6400Mpcs comoving distance or shell 16, redshift 3.895 -> 7200Mpcs comoving distance or shell 18)