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(a)

(b)

Figure 19: (a): mean value and standard deviation of the squeezed isosceles bispectrum ${[\ell (\ell +1)/(2\pi )]}^{3/2}{b}_{\ell \ell \theta }$ for $\theta =0.2$ radians. The dashed line is the best power law fit. (b) shows its rescaling by ${\theta }^3[\ell (\ell +1)/(2\pi ){]}^{3/2}{b}_{\ell \ell \theta }$ showing the $1/{\theta }^3$ dependency. The spurious plateau (dotted) for the lower multipoles comes from a numerical cutoff associated with the window functions and occurs at ${\ell }_{\min \hspace{0.17em}}(\theta )\simeq 30\pi /({\theta }_{\text{fov}}\theta )$, the field of view being ${\theta }_{\text{fov}}=7.2^{\circ }$.