Re: [IPTA-cs] VOS versus BOS

[Ken Olum <kdo cosmos phy tufts edu>]

Hi, Kai.  Thanks for straightening this out.  I agree that everything is
consistent now.  I don't know how much detail to go into in our paper.
This small difference in amplitudes (and also in spectral index, which
is basically the slope of the curves in your plot) can make some
difference in the fit to the data.  For example there's a difference on
the order of 0.4 sigma in the fit to the NANOGrav 12.5 year data between
the BOS point with Gmu = 10^-10 and the cusp-only point in
https://arxiv.org/abs/2102.08194.  It matters less for the Gmu that
are closer to the middle of the preferred range.

                                        Ken