Merge pull request #142 from desihub/better-broadline-fitting

improved modeling of galaxies with broad+narrow line-emission
desihub · Aug 2, 2023 · f7bcab0 · f7bcab0
2 parents b0e59b9 + 8db4dbd
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diff --git a/doc/changes.rst b/doc/changes.rst
@@ -23,13 +23,16 @@ Change Log
   * Switch from (deprecated) ``pkg_resources`` to ``importlib``.
   * Updated documentation (data model) and several non-negligible speed-ups.
 
+* Improved modeling of galaxies with broad+narrow line-emission [`PR #142`_]:
+
 .. _`PR #115`: https://github.com/desihub/fastspecfit/pull/115
 .. _`PR #116`: https://github.com/desihub/fastspecfit/pull/116
 .. _`PR #120`: https://github.com/desihub/fastspecfit/pull/120
 .. _`PR #132`: https://github.com/desihub/fastspecfit/pull/132
 .. _`PR #135`: https://github.com/desihub/fastspecfit/pull/135
 .. _`PR #136`: https://github.com/desihub/fastspecfit/pull/136
 .. _`PR #137`: https://github.com/desihub/fastspecfit/pull/137
+.. _`PR #142`: https://github.com/desihub/fastspecfit/pull/142
 
 2.1.2 (2023-04-01)
 ------------------

diff --git a/doc/fastspec.rst b/doc/fastspec.rst
@@ -163,8 +163,9 @@ Name                         Type         Units                         Descript
                  FHBETA_CONT      float32  1e-17 erg / (Angstrom cm2 s) Continuum flux at 4862.683 A in the rest-frame.
              FOIII_5007_CONT      float32  1e-17 erg / (Angstrom cm2 s) Continuum flux at 5008.239 A in the rest-frame.
                 FHALPHA_CONT      float32  1e-17 erg / (Angstrom cm2 s) Continuum flux at 6564.613 A in the rest-frame.
-                  RCHI2_LINE      float32                               Reduced chi-squared of an emission-line model fit.
-             DELTA_LINERCHI2      float32                               Difference in the reduced chi-squared values between an emission-line model with narrow lines only and a model with both broad and narrow lines.
+                  RCHI2_LINE      float32                               Reduced chi-squared of the emission-line model fit.
+              DELTA_LINECHI2      float32                               Chi-squared difference between an emission-line model without and with broad lines.
+              DELTA_LINENDOF        int32                               Difference in the degrees of freedom between an emission-line model without and with broad lines.
                     APERCORR      float32                               Median aperture correction factor.
                   APERCORR_G      float32                               Median aperture correction factor measured in the g-band.
                   APERCORR_R      float32                               Median aperture correction factor measured in the r-band.