Addition of WaveX model

AUTHORS.rst

@@ -16,6 +16,7 @@ Contributors
 
 Active developers are indicated by (*). Authors of the PINT paper are indicated by (#).
 
+* Gabriella Agazie (*)
 * Akash Anumarlapudi (*)
 * Anne Archibald (#*)
 * Matteo Bachetti (#)

CHANGELOG-unreleased.md

@@ -14,6 +14,7 @@ the released changes.
 - Updated `CONTRIBUTING.rst` with the latest information.
 ### Added
 - Third-order Roemer delay terms to ELL1 model
+- Added WaveX model as DelayComponent with wave amplitudes as fitted parameters
 - Options to add a TZR TOA (`AbsPhase`) during the creation of a `TimingModel` using `ModelBuilder.__call__`, `get_model`, and `get_model_and_toas`
 - `pint.print_info()` function for bug reporting
 ### Fixed

src/pint/models/__init__.py

@@ -41,6 +41,7 @@
 from pint.models.timing_model import DEFAULT_ORDER, TimingModel
 from pint.models.troposphere_delay import TroposphereDelay
 from pint.models.wave import Wave
+from pint.models.wavex import WaveX
 
 # Define a standard basic model
 StandardTimingModel = TimingModel(

src/pint/models/timing_model.py

@@ -117,6 +117,7 @@
     "spindown",
     "phase_jump",
     "wave",
+    "wavex",
 ]