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- SNCosmo — sncosmo v2. 12. 1
SNCosmo¶ SNCosmo is a Python library for supernova cosmology analysis It aims to make such analysis both as flexible and clear as possible
- Supernova Models — sncosmo v2. 12. 1 - Read the Docs
A Model in sncosmo consists of One “source” A model of the spectral evolution of the source (e g , a supernova) Zero or more “propagation effects” Models of how intervening structures (e g , host galaxy dust, milky way dust) affect the spectrum
- Fitting a light curve — sncosmo v2. 12. 1 - Read the Docs
# create a model model = sncosmo Model (source = 'salt2') # run the fit result, fitted_model = sncosmo fit_lc (data, model, ['z', 't0', 'x0', 'x1', 'c'], # parameters of model to vary bounds = {'z':(0 3, 0 7)}) # bounds on parameters (if any)
- List of Built-in Bandpasses — sncosmo v2. 12. 1 - Read the Docs
To get a Bandpass at a given (x, y, sensor_id) position on the focal plane, use band = sncosmo get_bandpass('hsc::g', x=0, y=0, sensor_id=1) To get the averaged Bandpass, use band = sncosmo get_bandpass('hsc::g')
- Installation — sncosmo v2. 12. 1 - Read the Docs
This will install a development version of the SNCosmo package that automatically picks up any changes that you made when you import sncosmo for the first time in a Python interpreter
- Reference API — sncosmo v2. 12. 1 - Read the Docs
Source () An abstract base class for transient models TimeSeriesSource (phase, wave, flux[, ]) A single-component spectral time series model StretchSource (phase, wave, flux[, name, version]) A single-component spectral time series model, that "stretches" in time
- Registry — sncosmo v2. 12. 1 - Read the Docs
The registry (sncosmo registry) is responsible for translating string identifiers to objects, for user convenience For example, it is used in sncosmo get_bandpass and sncosmo get_source to return a Bandpass or sncosmo Model object based on the name of the bandpass or model: >>>
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