Review.md

@@ -64,7 +64,7 @@ Remember that `alpha=1.0` posteriors should look bad for these events - they wou
 | GW191222A | Krishnendu | [link](O3b-Results/GW191222A) |  | <br> Shall we check if we are using the same distance priors for both LI and Bilby runs?  **TB:** we checked and we are using the same distance priors|
 | GW200219A | Krishnendu | [link](O3b-Results/GW200219A) |  | <br> $`\chi_{eff}`$ posterior is different, do we understand this?  **TB**: chi_eff posteriors for bilby-liv look to me very similar to other ones before reweighting. After reweighting it is broader, but it should not be compared with lal posterior (during o3 only 1D A_alpha posterior was reweighted)|
 | GW200202A | Krishnendu | [link](O3b-Results/GW200202A) |  | <br> $`\chi_{eff}`$ posterior is different, do we understand this? <br> <br> I think it will be also good to compare the prior distributions used for LI and Bilby runs to see these differences are caused by the difference in prior. |
-| S191109a | Naresh | [link](O3b-Results/S191109a) |  | <br> Slight difference is observed in the distributions of chirp mass, mass ratio and chi effective in all of these runs. Your comments addressing these differences would be helpful. |
+| S191109a | Naresh | [link](O3b-Results/S191109a) |  | <br> Slight difference is observed in the distributions of chirp mass, mass ratio and chi effective in all of these runs. Your comments addressing these differences would be helpful. **TB:** About differences in masses and spin posteriors (here in runs below). There are degeneracies between LIV parameter and masses and spins. Allowing for GR vialation therefore deforms their posteriors. You can see it through comparison with `lal-plus` and `lal-minus` runs - they can give different posteriors for than GR case, with `bilby-liv` giving posterior inbetween, as it samples both positive and negative values at once. See [example](https://ldas-jobs.ligo.caltech.edu/~tomasz.baka/LIV_review/pesummary/S191129a/1.5/html/Comparison_chi_eff.html) of this effect.|
 | S191129a | Naresh | [link](O3b-Results/S191129a) |  | <br> Slight difference is observed in the distributions of chirp mass, mass ratio and chi effective in some of the runs. Upon checking, source frame chirp mass and other spin parameter distributions, tend to agree.  |
 | S191215a | Naresh | [link](O3b-Results/S191215a) |  | <br> A_alpha comparison plots looks okay for alphas between LI and Bilby runs. Slight difference is observed in the distributions of chirp mass, mass ratio and chi effective in some of the runs. |
 | S200129a | Naresh | [link](O3b-Results/S200129a) |  | <br> Difference in distributions of A_alpha when alpha = 3,4 for LI and Bilby runs. |