July 29th, 2019 - CIB Lensing: Kappa Reduced Bispectra Ratio (by Mass Cut) (Selected Redshifts)
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In this post, I have four plots showing the ratios [math]\displaystyle{ \frac{b_{\ell}^{\text{mass cut}}}{b_{\ell}^{\text{total}}} }[/math] for selected shells, with "total" being the kappa generated with the whole catalog (no mass cut). Similar to the power spectra (https://mocks.cita.utoronto.ca/index.php/July_26th,_2019_-_CIB_Lensing:_Kappa_Power_Spectra_Ratio_(by_Mass_Cut)_(Selected_Redshifts), note that the x-axis scales are different here) 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] and virtually non-existent for [math]\displaystyle{ M_{\text{mass cut}} \le 10^{13} M_{\odot} }[/math]. In other words, the contribution of lower mass halos ([math]\displaystyle{ \le 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]. However, more of the bispectrum is coming from the highest mass halos ([math]\displaystyle{ \gt 10^{14} M_{\odot} }[/math] ) compared to the power spectrum over all multipoles and redshifts. (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)