analysis.models¶
The models module defines custom Source objects for using various
supernova models with the sncosmo python package.
Available Models¶
| Name | Version | Description |
|---|---|---|
| CMFGEN | 1.02 | Explosion Model for a 1.02 solar mass progenitor |
| CMFGEN | 1.04 | Explosion Model for a 1.04 solar mass progenitor |
| CMFGEN | 1.4 | Explosion Model for a 1.4 solar mass progenitor |
| CMFGEN | 1.7 | Explosion Model for a 1.7 solar mass progenitor |
Usage Example¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | import sncosmo
from matplotlib import pyplot as plt
from analysis import models
# Make sncosmo aware of the sncosmo models
models.register_sources()
# Initialize a CMFGEN model where the version is the model mass
source = sncosmo.get_source('CMFGEN', version='1.04')
model = sncosmo.Model(source=source)
# run the fit
data = sncosmo.load_example_data()
result, fitted_model = sncosmo.fit_lc(
data, model,
['z', 't0', 'x0'], # parameters of model to vary
bounds={'z':(0.3, 0.7)}) # bounds on parameters (if any)
# Plot results
fig = sncosmo.plot_lc(data, model=fitted_model, errors=result.errors)
plt.show()
|
Function Documentation¶
-
class
analysis.models.GenericSource(path, version)[source]¶ SNCosmo source class for a CMFGEN model
-
interpolated_model()[source]¶ Return the phase, wavelength, and flux values used for fitting
Returns the data with flux values down-sampled onto the same wavelength values for all phase values. The returned model is the same as the data used when fitting light curves.
Returns: A 1D array of phase values A 1D array of wavelength values A 2D array of flux values
-
original_model()[source]¶ Return the phase, wavelength, and flux values of the model
Returns the un-gridded model that this class is based on without any down-sampling. Flux values span different wavelength ranges for different phases.
Returns: A 1D array of phase values A 2D array of wavelength values A 2D array of flux values
-