meeting 2026 04 23 gw - JacobPilawa/TriaxSchwarzschild_wiki_6 GitHub Wiki
Context
- Adding some diagnostic GSMF and completness plots here (rather than clogging up the Overleaf with some half-results, at least for now).
- In the plots below, I have some diagnostics showing the orthogonal distance regression applied to our masses, as well as the impact these have on the GSMFs.
- Note that I am presenting two ODR fits below. One fit uses all of the data, the other uses only the most local redshfit slice (out to z=0.05).
- I'm doing these fits in 1d by the way (rather than 2D which we had discussed in the past).
ODR Diagnostics
- Here are both 1-to-1 plots AND residuals. In the residuals panel, I'm dividing the data into 20 bins and adding the median and standard deviation as scatter points to get a better sense of the agreement.
- It seems like in the 1-to-1 and the residual panels, using the global fit ODR seems to result in a slightly better level of agreement with the K-band mass measurements than the local fit, but probably the local fit is more well-justified. I don't think there's a large downside in picking one versus the other though, so probably best to use the local relation since that's what the K-band is calibrated to.
| No Correction | Global Fit Correction | Local Fit Correction |
|---|---|---|
| [images/260423/mass_residuals_odr_base.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/mass_residuals_corrected_global_odr.png) | images/260423/mass_residuals_corrected_local_odr.png | |
| [images/260423/mass_delta_y_minus_x_raw.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/mass_delta_y_minus_x_corrected_global_odr.png) | images/260423/mass_delta_y_minus_x_corrected_local_odr.png |
Impact on the GSMF
- With the updated masses above, I can recompute both the 1/Vmax GSMF and the completeness estimates I had in the last meeting, along with adding the "peak" of each distribution as a heuristic.
Baseline
| Case | z slice 1 | z slice 2 | z slice 3 | z slice 4 | z slice 5 | All Together |
|---|---|---|---|---|---|---|
| Histograms | [images/260423/mstar_hist_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/mstar_hist_page_02_z_0.101_0.154.png) | [images/260423/mstar_hist_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/mstar_hist_page_04_z_0.204_0.253.png) | [images/260423/mstar_hist_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/mstar_histograms_with_masslimit_lines_panels.png) | |||
| GSMFs | [images/260423/gsmf_redshift_bin_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/gsmf_redshift_bin_page_02_z_0.101_0.154.png) | [images/260423/gsmf_redshift_bin_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/gsmf_redshift_bin_page_04_z_0.204_0.253.png) | [images/260423/gsmf_redshift_bin_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/gsmf_redshift_bins_with_masslimit_lines.png) |
Global ODR Correction
| Case | z slice 1 | z slice 2 | z slice 3 | z slice 4 | z slice 5 | All Together |
|---|---|---|---|---|---|---|
| Histograms | [images/260423/global_odr_mstar_hist_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_mstar_hist_page_02_z_0.101_0.154.png) | [images/260423/global_odr_mstar_hist_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_mstar_hist_page_04_z_0.204_0.253.png) | [images/260423/global_odr_mstar_hist_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_mstar_histograms_with_masslimit_lines_panels.png) | |||
| GSMFs | [images/260423/global_odr_gsmf_redshift_bin_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_gsmf_redshift_bin_page_02_z_0.101_0.154.png) | [images/260423/global_odr_gsmf_redshift_bin_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_gsmf_redshift_bin_page_04_z_0.204_0.253.png) | [images/260423/global_odr_gsmf_redshift_bin_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/global_odr_gsmf_redshift_bins_with_masslimit_lines.png) |
Local ODR Correction
| Case | z slice 1 | z slice 2 | z slice 3 | z slice 4 | z slice 5 | All Together |
|---|---|---|---|---|---|---|
| Histograms | [images/260423/local_odr_mstar_hist_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_mstar_hist_page_02_z_0.101_0.154.png) | [images/260423/local_odr_mstar_hist_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_mstar_hist_page_04_z_0.204_0.253.png) | [images/260423/local_odr_mstar_hist_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_mstar_histograms_with_masslimit_lines_panels.png) | |||
| GSMFs | [images/260423/local_odr_gsmf_redshift_bin_page_01_z_0.005_0.101.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_gsmf_redshift_bin_page_02_z_0.101_0.154.png) | [images/260423/local_odr_gsmf_redshift_bin_page_03_z_0.154_0.204.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_gsmf_redshift_bin_page_04_z_0.204_0.253.png) | [images/260423/local_odr_gsmf_redshift_bin_page_05_z_0.253_0.400.png]]](/JacobPilawa/TriaxSchwarzschild_wiki_6/wiki/[[images/260423/local_odr_gsmf_redshift_bins_with_masslimit_lines.png) |